Sustainable Energy Systems | PhD Alumni
Alexandra Tavares
Alexandre Lucas
Keywords: alternative propulsion technologies; alternative energy pathways; electricity, hydrogen; life-cycle analysis; energy supply infrastructure;
Alexandre Lucas has successfully discussed his thesis on November, 19th, 2013 with the following members of the jury:
- Paulo Ferrão, Técnico Lisboa, ULisboa
- João Afonso, School of Engineering, UMinho
- Randolph Kirchain, Massachusetts Institute of Technology
- Fausto Freire, Faculdade de Ciências e Tecnologia, Universidade de Coimbra
- Tiago Domingos, Técnico Lisboa, ULisboa
- Rui Pedro Neto, Técnico Lisboa, ULisboa
- Carla Alexandra Silva, Técnico Lisboa, ULisboa
- Lucas, A; Silva C; Neto R. Impact of energy supply infrastructure in life cycle analysis of hydrogen and electric systems applied to the Portuguese transportation sector. International Journal of Hydrogen Energy. 2012 (37): 10973-85
- Lucas, A; Silva C; Neto R. Life Cycle Analysis of energy supply infrastructure for conventional and electric vehicles. Energy Policy 2011 (41): 537–547.
- Lucas, A; Silva C; Neto R. Energy supply infrastructure LCA model for electric and hydrogen transportation systems. Energy 2013 (May 2013)
- Lucas, A; Chang, S. Vehicle to grid decentralized dispatch control using consensus algorithm with constraints. Smart Grid and Renewable Energy 2013 (4) nº6A: 8-20.
Amir Safaei
Ana Gonçalves
Ana Proença
Ana Rita Caeiro
Ana Rita Neves
Ana Soares
- A. Soares, A. Gomes, C. Henggeler Antunes. “Integrated management of energy resources in the residential sector using evolutionary computation – a review”, In: M.S. García-Cascales, J.M. Sanchez-Lozano, A.D. Masegosa, C. Cruz-Corona, “Soft Computing Applications for Renewable Energy and Energy Efficiency”, IGI Global, 2014. (to be published)
- A. Soares, A. Gomes, C. Henggeler Antunes, H. Cardoso, 2013. Domestic Load Scheduling Using Genetic Algorithms. In Applications of Evolutionary Computation, ed. Anna I. Esparcia-Alcázar, 142 – 151. ISBN: 978-3-642-37191-2. Berlin, Heidelberg: Springer Berlin Heidelberg. doi: 10.1007/978-3-642-37192-9_15
- A. Soares, A. Gomes, C. Henggeler Antunes, C “Categorization of residential electricity consumption as a basis for the assessment of the impacts of demand response actions”, Renewable and Sustainable Energy Reviews 30, 0: 490 – 503, 2014. doi: 10.1016/j.rser.2013.10.019
- A. Soares, A. Gomes, C. Henggler Antunes “Integrated Management of Residential Energy Resources”, EPJ Web of Conferences 33, 1: 05005 – 05005, 2012. doi: 10.1051/epjconf/20123305005
- A. Soares, “An agent-based modelling approach for domestic load simulation”, eceee 2013 Summer Study proceedings: Rethink, renew, restart, Belambra Presqu’île de Giens, 2013
- A. Soares; A. Gomes; C. Henggeler Antunes; G. Nunes, “An evolutionary strategy for managing domestic loads”, Energy for Sustainability Multidisciplinary Conference 2013 – Sustainable Cities: Designing for People and the Planet, EfS, Coimbra, 2013
- C. Henggeler Antunes, A. Soares, A. Gomes, “An evolutionary algorithm approach to an integrated energy management system”. In: J.Krope, A. G. Olabi, D. Goricanec (Eds.), Proceedings of the 6th Int. Conf. on Sustainable Energy and Environmental Protection – SEEP 2013, 572-577, Maribor, Slovenia, August 2013
- A. Soares, M. Lopes, A. Gomes, C. Henggeler Antune, N. Martins, “Smart(er) Energy Management Systems in Smart(er) Grids”, International Workshop on Energy Efficiency for a More Sustainable World, Ponta Delgada, 2012
- C. R. Vergara, A. Soares; A. Gomes; C. Henggler Antunes, J. P. Lopes “In-House Energy Consumption and Storage Optimization”, International Workshop on Energy Efficiency for a More Sustainable World, Ponta Delgada, 2012
- A. Gomes, A. Soares, C. Henggler Antunes, “Impacts of demand side management and micro-generation units on low voltage distribution radial networks”, 11th International Conference on Electrical Power Quality and Utilisation (EPQU), Lisbon, Portugal, 2011
- A. Soares, C. Henggler Antunes, A. Gomes “Assessing energy efficiency issues using Data Envelopment Analysis”, 11th IAEE European Conference – Energy Economy, Policies and Supply Security: Surviving the Global Economic Crisis, Vilnius, 2010.
Anabela Carvalho
André Augusto
André Pina
Communications/Conference presentations: 1 – F. Amorim, A. Pina, H. Gerbelova, J. Vasconcelos, P.P. da Silva, V. Martins, “Electricity decarbonisation pathways for 2050: a TIMES based approach in closed versus open systems modeling”, Energy, Volume 69, May 2014, Pages 104-112.
2 – H. Gerbelová, F. Amorim, A. Pina, M. Melo, C. Ioakimidis, P. Ferrão, “Potential of CO2 taxes as a policy measure towards low-carbon Portuguese electricity sector by 2050”, Energy, Volume 69, May 2014, Pages 113-119.
3 – R. Paleta, A. Pina, C. Silva, “Polygeneration Energy Container: Designing and testing energy services for remote developing communities”, IEEE Transactions on Sustainable Energy, (accepted for publication 2014) . 4 – A. Pina, P. Baptista, C. Silva, P. Ferrão, “Energy reduction and environmental benefits potential from the shift to electric vehicles: the Flores island case study”, Energy Policy, Volume 67, April 2014, Pages 37-47.
5 – A. Pina, C. Silva, P. Ferrão, “High-resolution modeling framework for planning electricity systems with high penetration of renewables”, Applied Energy, Volume 112, December 2013, Pages 215-223 [5].
[1]http://www.sciencedirect.com/science/article/pii/S0360544214000735 [2] http://www.sciencedirect.com/science/article/pii/S0360544214000188 [3]http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=06779683 [4]http://www.sciencedirect.com/science/article/pii/S0301421513007799 [5]http://www.sciencedirect.com/science/article/pii/S030626191300487X
André Ribeiro
António Abreu
António Ferreira dos Santos
Antónios Dragoneas
Ariovaldo Carvalho
Bernardo Silva
PhD Supervisor: Hélder Filipe Duarte Leite (FEUP) ; PhD co- supervisor: Carlos Coelho Leal Monteiro Moreira (FEUP). PhD Thesis (2014): Multi-terminal HVDC grids: control strategies for ancillary services provision in interconnected transmission systems with offshore wind farms Thesis abstract: Wind Energy (WE) has largely contributed to the de-carbonization of the energy sector and consequently to the definition of the European Commission (EC) targets on renewable-based electricity generation. During the last decade, massive investment has culminated in the substantial installation of Wind Farms (WF). Moreover, the ambitious plans for increasing these targets on renewable-based electricity generation demand the deployment of more WF. To tackle this challenge, a large amount of offshore WF is envisioned to be built during the next decade. From the technical perspective, the adoption of HVDC becomes crucial to allow the installation far from coast and large power WF. Most recent plans point for the adoption of DC-grids as the mean of interconnecting offshore WF and also inter-AC area, allowing further renewable integration and the development of a common European electricity market.This thesis presents control strategies based on a communication-free framework that were developed in order to allow DC grid-connected offshore WF and interconnected AC areas on providing advanced system services such as: a) primary frequency regulation, b) inertial behavior emulation, c) Fault Ride-through (FRT) capability. The association of the control strategies for primary frequency regulation and FRT has culminated in the design of the coordinated approach for increasing the DC grid reliability by allowing its operation following the disconnection of one onshore HVDC converter. The presented control strategies rely on local controllers to be housed in offshore and onshore High Voltage Direct Current – Voltage Source Converter (HVDC-VSC) as well as on WT. The local controllers operate autonomously providing the adequate regulation based on quantity variations. The main outcomes of this thesis consist on the development of communication-free control strategies for MTDC grid with offshore WF participating in the mainland systems frequency regulation, the capability of remaining connected to the mainland grids during voltage sags, thus mitigating the problems resulting from the disconnection of a large amount of wind power. Finally, a control scheme to guarantee the operation of the DC grid following the disconnection of one evacuation node (onshore HVDC-VSC) is presented. Publications:
- C. Moreira, B. Silva, F.J. Soares, L. Seca, J. A. Peças Lopes, “Inertial Control in Off-shore Wind Farms Connected to AC Networks through Multi-terminal HVDC grids with VSC”, CIGRÉ SYMPOSIUM – Cigrè International Symposium , Bologna, Italy, Setembro, 2011.
- Silva, B.; Moreira, C. L.; Seca, L.; Phulpin, Y.; Peças Lopes, J. A.; , “Provision of Inertial and Primary Frequency Control Services Using Offshore Multiterminal HVDC Networks,” Sustainable Energy, IEEE Transactions on , vol.PP, no.99, pp.1, 0 – doi: 10.1109/TSTE.2012.2199774
- E. Ciapessoni, D. Cirio, A. Gatti, A. Pitto, A. M. Denis, O. Despouys, L. He, C.C. Liu, C. Moreira, B. Silva, Y. Phulpin; “Dynamics and control of multi-terminal high voltage direct current networks for integration of large offshore wind parks into AC grids”; 44th Cigré Session, 26-31 August, 2012
- B. Silva, C. Moreira, Fornecimento de controle primário de frequência em parques eólicos conectados através de redes HVDC multi-terminal, Brazil Wind Power 2012, Agosto, 2012
- B. Silva, C. Moreira, H. Leite, J. P. Lopes, Barriers and solutions for AC low voltage fault ride-through on Multi-terminal HVDC grids, 11 th Wind Integration Workshop, November, 2012
- N. Taveira, A. Mendonça, E. Quitmann, C.Moreira, B. Silva, J. Moreira, C. P. da Silva, The Connection Studies for 1200 MW Wind Power Integration in Portugal, 11 th Wind Integration Workshop, November, 2012
- R.J. Bessa, C. Moreira, B. Silva, M.Matos, Handling Renewable Energy Variability and Uncertainty in Power Systems Operation, Wiley Interdisciplinary Reviews: Energy and Environment, 2013.
- B. Silva, C. Moreira, H. Leite, J.A. Peças Lopes, “Control Strategies for AC Fault Ride-Through in Multi-terminal HVDC Grids”, IEEE Transactions on Power Delivery, vol.29, no.1, pp.395,405, Feb. 2014 doi: 10.1109/TPWRD.2013.2281331
Carla Caldeira
Carla Rodrigues
Catarina Rolim
Catarina Serra
Christian Wimmler
- C. Wimmler, G. Hejazi, E. Oliveira Fernandes, C. Moreira, S. Connors, Multi-criteria decision support methods for renewable energy systems on islands, International Conference on Energy and Environment Research 18-19 July 2014, Madrid. (Accepted for publication)
- G. Hejazi, C.Wimmler, E. Oliveira Fernandes, M. Matos, S. Connors, Imperative to overcome structural issues in energy policy for a clean energy future, International Conference on Clean Energy 8-12 June 2014, Istanbul. (Accepted for publication)
- C. Wimmler, G. Hejazi, E. Oliveira Fernandes, C. Moreira, S. Connors, Evaluation of offshore technologies based on natural local conditions and characteristics, 2014 INORE Symposium 11-17 May 2014, La Vega, Spain. (Accepted for presentation)
- G. Hejazi, C. Wimmler, E. Oliveira Fernandes, M. Matos, S. Connors, Approach to the Conception of Energy Solutions for Isolated Communities in Developing Countries, Young Energy Economists and Engineers Seminar 9-10 April 2014, University of Dresden, Dresden.
- C. Wimmler, G. Hejazi, E. Oliveira Fernandes, C. Moreira, S. Connors, A Sustainable Approach Towards 100% Renewable Energy for all Electric Services on Isolated Islands, Young Energy Economists and Engineers Seminar 9-10 April 2014, University of Dresden, Dresden.
- C. Wimmler, G. Hejazi, E. Oliveira Fernandes,M. Matos,C. Moreira, S. Connors, Increasing Urban Sustainability by Making Electricity Demand Side Management Appealing, 2nd International and 6th National Research and Innovation Festival on Urban Management (Tehran International Award), 14-16 December 2013, Tehran.
- C. Wimmler, G. Hejazi, E. Oliveira Fernandes, C. Moreira, S. Connors, A Sustainable Approach Towards 100% Renewable Energy for all Electric Services, UKERC Summer School 7-12 July 2013, University of Warwick, Warwick.
Clarisse Magarreiro
Claudio Vergara
Cristina Camus
- Paper presented: ”Microgeneration. Evaluation of the zero Emissions Technologies in the Portuguese Market”, EEM08 5th International Conference on the European Electricity Market 28-30 May 2008
Daniel Wiesmann
More info here.
Danyela Samaniego-Rascón
- Rascón, D. S., Ferreira, A. D., & da Silva, M. G. (2016). Occupational exposures to solar radiation in concentrated solar power systems: A general framework in central receiver systems. Renewable and Sustainable Energy Reviews, 65, 387-401.
- Rascón, D. S., Ferreira, A. D., & da Silva, M. G. (2017). Cumulative and momentary skin exposures to solar radiation in central receiver solar systems. Energy, 137, 336-349.
- Rascón, D. S., Ferreira, A. D., da Silva, M. C. G., & Iriarte, C. (2018). Ocular risks assessment in a central receiver solar power facility based on measured data of direct solar radiation. Solar Energy, 164, 77-88.
- Samaniego-Rascón, D., da Silva, M. C. G., Ferreira, A. D., & Cabanillas-Lopez, R. E. (2019). Solar energy industry workers under climate change: A risk assessment of the level of heat stress experienced by a worker based on measured data. Safety science, 118, 33-47.
David Rua
Dennis Metz
Diana Neves
- D. Neves, M. C. Brito, C. A. Silva, “Impact of solar and wind forecast uncertainties on demand response of isolated microgrids”, Renewable Energy, Volume 87, Part 2, March 2016, Pages 1003-1015
- D. Neves, A. Pina, C. A. Silva, “Demand response modeling: a comparison between tools,” AppliedEnergy, vol. 146, pp. 288-297, May 2015
- D. Neves and C. A. Silva, “Optimal electricity dispatch on isolated mini-grids using a demand response strategy for thermal storage backup with genetic algorithms”, Energy, vol. 82, pp. 436-445, March 2015
- D. Neves, C. A. Silva, “Modeling the impact of integrating Solar Thermal Systems and Heat Pumps for Domestic Hot Water in electric systems – The case study of Corvo Island,” Renewable Energy, vol. 72, pp. 113-124, Dec. 2014
- D. Neves, C. A. Silva, S. Connors, “Design and implementation of hybrid renewable energy systems on micro-communities: A review on case studies,” Renewable Sustainable Energy Reviews, vol. 31, pp. 935–946, Mar. 2014.
Diego Issicaba
Donald Scott
Ehsan Asadi
- António Gomes Martins
- Gianfranco Rizzo
- Paulo Manuel Cadete Ferrão
- Helder Perdigão Gonçalves
- Maria Teresa Costa Pereira da Silva Ponce de Leão
Thesis Summary: Retrofitting of existing buildings offers significant opportunities for reducing global energy consumption and greenhouse gas emissions. This is being considered as one of the main approaches to achieve sustainability in the built environment at relatively low cost and high uptake rates. Although there are a wide range of retrofit technologies readily available, methods to identify the most suitable set of retrofit actions for particular projects are still a major technical challenge. Such methods can be categorized into two main approaches; models in which alternative retrofit actions are explicitly know a priori and models in which alternative retrofit actions are implicitly defined in the setting of an optimization model. This thesis focuses on using modeling and optimization techniques to assess technology choices in the built environment. Firstly two multi-objective optimization models using a classical optimization technique, namely Tchebycheff technique are developed. The functionality of the proposed models is discussed through the application on a residential building. The results verify the practicability of the approaches and highlight potential problems that may arise. Afterward a multi-objective optimization model based on the Genetic Algorithm Integrating Neural Network (GAINN) approach is developed. The benefits of this approach with respect to the classical optimization models are its rapidity and computational efficiency. This model is used for the optimization of the energy consumption, retrofit cost and thermal comfort in a school building. The results from the optimization show the impact of each objective function on the building’s overall performance after retrofit and more importantly illustrate the trade-off between different objectives. Finally, the proposed methodology highlights the improvements added to the GAINN methodology by use of a multi-objective genetic algorithm.
Érica Castanheira
Eugénio Rodrigues
- Rodrigues, E., Gaspar, A. R., & Gomes, Á. (2013). An evolutionary strategy enhanced with a local search technique for the space allocation problem in architecture, Part 1: Methodology. Computer-Aided Design, 45(5), 887–897. doi:10.1016/j.cad.2013.01.001
- Rodrigues, E., Gaspar, A. R., & Gomes, Á. (2013). An evolutionary strategy enhanced with a local search technique for the space allocation problem in architecture, Part 2: Validation and performance tests. Computer-Aided Design, 45(5), 898–910. doi:10.1016/j.cad.2013.01.003
- Rodrigues, E., Gaspar, A. R., & Gomes, Á. (2013). An approach to the multi-level space allocation problem in architecture using a hybrid evolutionary technique. Automation in Construction, 35, 482–498. doi:10.1016/j.autcon.2013.06.005
- Rodrigues, E., Gaspar, A. R., & Gomes, Á. (2014). Automated approach for design generation and thermal assessment of alternative floor plans. Energy and Buildings, 81, 170–181. doi:10.1016/j.enbuild.2014.06.016
- Rodrigues, E., Gaspar, A. R., & Gomes, Á. (2014). Improving thermal performance of automatically generated floor plans using a geometric variable sequential optimization procedure. Applied Energy, 132, 200–215. doi:10.1016/j.apenergy.2014.06.068
- Rodrigues, E., Gaspar, A. R., & Gomes, Á. (2013). A gradient descent technique coupled with a dynamic simulation to determine the near optimum orientation of floor plan designs. In K. Kabele, M. Urban, K. Suchý, & M. Lain (Eds.), CLIMA 2013. Prague, Czech Republic: Society of Environmental Engineering (STP).
- Rodrigues, E., Gaspar, A. R., Gomes, Á., & da Silva, M. G. (2014). Contributions of natural ventilation on thermal performance of alternative floor plan designs. In Proceedings of RoomVent 201, 19th-22nd October. São Paulo, Brazil.
Felipe Calabria
Filipa Amorim
- F. Amorim, A. Pina, H.Gerbelová, P.Pereira da Silva, J. Vasconcelos, V. Martins, “Electricity decarbonisation pathways for 2050 in Portugal: A TIMES (The Integrated MARKAL-EFOM System) based approach in closed versus open systems modelling”, Energy, Available online 11 February 2014, ISSN 0360-5442, http://dx.doi.org/10.1016/j.energy.2014.01.052.
- F. Amorim, J. Vasconcelos, I.C. Abreu, P.P. Silva, V. Martins, “How much room for a competitive electricity generation market in Portugal?”, Renewable and Sustainable Energy Reviews, Volume 18, February 2013, Pages 103-118, ISSN 1364-0321, http://dx.doi.org/10.1016/j.rser.2012.10.010.
Filipa Carlos
- Maria do Rosário Sintra de Almeida Partidário, Técnico Lisboa da Universidade de Lisboa
- António Jorge Viegas de Vasconcelos, Técnico Lisboa da Universidade de Lisboa
- João António Muralha Ribeiro Farinha, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa
- Eduardo Guimarães Oliveira Fernandes, Faculdade de Engenharia da Universidade do Porto
- Vítor Manuel da Silva Leal, Faculdade de Engenharia da Universidade do Porto.
- Ricardo Bessa’s research was supervised by Manuel Matos (FEUP).
Filipa Reis
Filipe Joel Nunes Soares
Filipe Rodrigues
Filipe Sim-Sim
Francisco Ribeiro
Golnar Hejazi
Research Summary:
[Research Interests] Sustainable Energy Systems planning; Assessment and planning methodologies, Renewable energy (Microgeneraion), energy management , energy as social issue, energy policy, Islands, Decision making
Gonçalo Cardoso
Gonçalo Pereira
The estimation and classification of residential energy consumption patterns are possible due to the deployment of smart meters. The pattern analysis contributed to the reduction of energy consumption through feedback of performance indicators to households. A shift to cleaner energy consumption could be achieved with distributed production, using on-site renewable energy production and storage. The achieved results suggest that current solar storage technologies and Portuguese legislation would be financially profitable making it an attractive option for households.
Energy efficiency measures (e.g. consumption feedback) and a shift to renewable energy use can increase sustainability in the residential sector.
Publications:
- Pereira, Gonçalo; Vieira,Susana; Silva, Carlos;. Energy Consumption and Certification in the Portuguese Residential Sector. Robotics and Systems in Engineering and Science Workshop (LARSYS 2013), 4th and 5th July 2013, Lisboa, Portugal.
- Pereira, Gonçalo; Alves,Marina; Silva, Carlos; Indicators for evaluating and comparing energy consumption of households. International Workshop on Energy Efficiency for a More Sustainable World, 14th to 16th September 2012, São Miguel, Açores, Portugal.
- Pereira, Gonçalo; Vieira,Susana; Silva, Carlos; Main drivers for the Iberian Market Price and Energy Storage in Portugal. International Annual Conference of the German OR Society, 4th to 7th September 2012, Hannover, Germany.
- Pereira, Gonçalo; Baptista, Patrícia; Silva, Carlos; Pina, André; Duarte, Gonçalo; Rolim, Catarina; On road comparison of electric and conventional bicycles in Lisbon. Energy Night Portugal 2012, 1st of June 2012, Pavilhão Conhecimento, Lisboa, Portugal.
- Pereira, Gonçalo; Silva, Carlos; Energy Storage Impact in the Portuguese Electric System. 3rd MIT Portugal Conference, 28th and 29th May 2012, Guimarães, Portugal.
- Pereira, Gonçalo; Pina, André; Silva, Carlos; Moutinho, Alexandra. Integrated Modeling Framework for Energy Systems Modeling. 23rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2010), 14th to 17th June 2010, Lausanne, Switzerland.
- Pereira, Gonçalo; Moutinho, Alexandra; Silva, Carlos. Flexible Design of Sustainable Energy Systems under Uncertainty. 24th European Conference on Operations Research (EUROXXIV), 11th to 14th of July 2010, Lisbon, Portugal
Gonçalo Pinto Mendes
- Journal paper: “On the Planning and Analysis of Integrated Community Energy Systems: A Review and Survey of Available Tools”, Elsevier – Renewable and Sustainable Energy Reviews, 2011.
- Conference paper: ”Integrated Energy Microgrids for Community-scale Systems: Case Study Research in the Azores Islands”, Presented at EEM11 – 8th International Conference on the European Energy Market, 25-27 May 2011, Zagreb, Croatia.
- Conference poster (Best Poster Award): “Modeling PEV Interactions Between a Small Community Microgrid and a Public Office Building”, Poster presented at the E3 – Education, Employment, Entrepreneurship Forum, Lisbon, Portugal, 2011.
- Conference poster: “Modeling of Plug-in Electric Vehicle Interactions with a School Building using DER-CAM”, Poster presented at the MIT Transportation Showcase, Boston, USA, 2011.
Guillermo Pereira
Gustavo Souza
Hana Gerbelová
- Paulo Ferrão, Técnico Lisboa, ULisboa
- João Toste de Azevedo, Técnico Lisboa, ULisboa
- Mário Vital Melo, Escola Superior Nautica Infante D. Henrique
- Dulce Boa Vida, Laboratório Nacional de Energia e Geologia, LNEG
- H. Gerbelová, F. Amorim, A. Pina, M. Melo, C. Ioakimidis, P. Ferrão, “Potential of CO2 taxes as a policy measure towards low-carbon Portuguese electricity sector by 2050”, Energy 2014, http://dx.doi.org/10.1016/j.energy.2014.01.011.
- H. Gerbelová, P. Versteeg, C.S. Ioakimidis, P. Ferrão, “The effect of retrofitting Portuguese fossil fuel power plants with CCS”, Applied Energy, 101, 280-287, 2013.
- H. Gerbelová, A. André, S. Casimiro, M. Melo, P. Ferrão, “Assessment of carbon capture and storage opportunities: Portuguese case study”, Energy Procedia, 4, 6109-6116, 2011.
- H. Gerbelová, C. Ioakimidis, P. Ferrão, “A techno-economical study of the CO2 capture in the energy sector in Portugal”, Energy Procedia, 4, 1965-1972, 2011.
- H. Gerbelová, E.S. Rubin: Assessment of cost parameters used in economic evaluation of power plants with CCS. 10th Annual Conference on Carbon Capture and Sequestration, Pittsburgh PA (May 2011).
- H. Gerbelová, A. Pina, C. Ioakimidis, M. Melo, P. Ferrão: Carbon capture and sequestration technology assessment into the Portuguese energy system. 23rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Lausanne, Switzerland (June 2010).
Helena Monteiro
Henrique Pombeiro
Maria Machado, Henrique Pombeiro, Carlos Silva, “Aplicação de um algoritmo de otimização genético multiobjectivo no controlo de um sistema de ar condicionado e iluminação”. Energy at IST Conference 2014, September 12, Instituto Superior Técnico, University of Lisbon, Lisbon, Portugal.
Carlos Gomes, Henrique Pombeiro, Carlos Silva, “Um Algoritmo de Aprendizagem como Controlador Térmico”, Energy at IST Conference 2014, September 12, Instituto Superior Técnico, University of Lisbon, Lisbon, Portugal
Henrique Pombeiro, Carlos Silva, “Linear, Fuzzy and Neural Networks models for definition of baseline consumption: Early findings from two test beds in a University Campus in Portugal “. Park Inn by Radisson Hotel & Conference Centre, August 27-29, London, UK. ISBN 978-0-9893193-1-7.
Henrique Pombeiro, Carlos Silva, “Novel multivariate adaptive self-learning methodology for efficient energy systems in buildings”. Poster presented in the 4th MIT Portugal Conference, June 27th 2014, University of Coimbra, Coimbra, Portugal
Henrique Pombeiro, Carlos Silva, “Novel multivariate adaptive self-learning methodology for efficient energy systems in buildings”. Poster presented in the LARSys 2014 Annual Meeting Conference, July 4th 2014, Ciência Viva Pavilion, Lisbon, Portugal
Henrique Pombeiro, Carlos Silva, Poster, “Towards conscious electricity consumption in households: Early findings from a living lab and recommendations”, 2014, June 20th, Calouste Gulbenkian Foundation, Lisbon, Portugal.
Henrique Pombeiro, Carlos Silva, Poster, “Intelligent management of energy systems in buildings – early results”, 2014, IN+ Annual Meeting, May 28-30, Técnico Lisboa – University of Lisbon, Portugal
Hermano Bernardo
Hrvoje Keko
Hugo Campaniço
Jacob Huber
Joana Abreu
Joana Bastos
- J. Bastos, S. Batterman, F. Freire, Life-cycle energy and greenhouse gas analysis of three building types in a residential area in Lisbon. Energy and Buildings 69: 344-353, 2014
- J. Bastos, F. Freire and J. A. Bandeirinha, Urban form potential in sustainable development: a framework for the environmental assessment of urban patterns, Morfologia Urbana nos Países Lusófonos – Actas da Conferência Internacional PNUM 2012, ISBN 978-989-732-023-1
João Ferreira
João Francisco Barreiros
João Lagarto
João Santos
Jorge Borges
José Gonçalves
Publications Gonçalves, J., Neves, L. P., & Martins, A. G. (2015b). Multiobjective assessment of distributed energy storage location in electricity networks. International Journal of Sustainable Energy, (July), 1–15, 2015, doi:10.1080/14786451.2015.1066787 Conference proceedings and abstracts Gonçalves, José António Ribeiro; Martins, António Gomes; Neves, Luís. Potential Role of Stationary Urban Distributed Storage on the Management of Power Systems. In: INTERNATIONAL CONFERENCE ON ENERGY & ENVIRONMENT: BRINGING TOGETHER ECONOMICS AND ENGINEERING (ICEE2013), 2013. Porto. International Conference on Energy & Environment: bringing together Economics and Engineering. 2013. Gonçalves, José António Ribeiro; M. Vitorino, Romeu; Neves, Luís; Martins, António Gomes. Assessment of best location of distributed storage using improved genetic algorithms’. In: ENERGY FOR SUSTAINABILITY 2013, SUSTAINABLE CITIES: DESIGNING FOR PEOPLE AND THE PLANET, 2013. Coimbra. Energy for Sustainability 2013, Sustainable Cities: Designing for People and the Planet. 2013. Gonçalves, José António Ribeiro; Miguel, Pedro C; Barata, Eduardo; Cruz, Luís. Eficiência Energética na Iluminação Pública. In: PORTUGAL EM CONFERÊNCIA PARA UMA ECONOMIA ENERGÉTICAMENTE EFICIENTE (PCEEE 2012), 2012. Coimbra. Portugal em Conferência para uma Economia Energéticamente Eficiente. 2012. Ruffa, Dario; Maia, Eduardo; Gonçalves, José António Ribeiro; Coelho, Marco; Abadi, Mohsen B; Figueiredo, Nuno; Miguel, Pedro C; Miguel, Rodrigo; Martins, António M. O. G. Energy efficiency and market transformation policies: an appraisal based on case-studies. In: INTERNATIONAL WORKSHOP ON ENERGY EFFICIENCY FOR A MORE SUSTAINABLE WORLD, 2012. Ponta Delgada. Proc. of the Int. Workshop on Energy Efficiency for a More Sustainable World. 2012. Gonçalves, José António Ribeiro; Neves, Luís; Martins, António Gomes. Multiobjective methodology for impact assessment of the best location of distributed electric energy storage. In: WORKSHOP ON ASSESSMENT METHODOLOGIES – ENERGY, MOBILITY AND OTHER REAL WORLD APPLICATIONS, 2015. Coimbra. Workshop on Assessment Methodologies – energy, mobility and other real world applications. 2015.
Julija-Vasiljevska
Kiti Suomalainen
- Green Island Project, poster for AGS Annual Meeting 2008
Lauro Ribeiro
Leonardo Bremermann
- Mauro Augusto da Rosa, Universidade Federal de Santa Catarina, Brasil;
- Pedro Manuel Santos de Carvalho, Técnico Lisboa da Universidade de Lisboa;
- Paulo José Gameiro Pereirinha, Instituto Superior de Engenharia de Coimbra do Instituto Politécnico de Coimbra;
- Manuel António Cerqueira da Costa Matos, Faculdade de Engenharia da Universidade do Porto;
- Jorge Manuel Pinho de Sousa, Faculdade de Engenharia da Universidade do Porto;
- Vítor Manuel da Silva Leal, Faculdade de Engenharia da Universidade do Porto.
Leonardo Rosado
Leonel Carvalho
Personal webpage
Luciana Salles Barbosa
Research topic/area Publications:
- K. Rocha, L. Salles, F. A. Alcaraz Garcia, J. A. Sardinha, J. P. Teixeira, Real estate and real options — A case study, Emerging Markets Review, Volume 8, Issue 1, March 2007, Pages 67-79, ISSN 1566-0141, http://dx.doi.org/10.1016/j.ememar.2006.09.008
- L. Barbosa, A. Sardinha. Deploying a Renewable Energy Project: An Equilibrium Analysis. 1st International Conference on Energy & Environment, Porto, Portugal, May 2013.
- L.Salles Barbosa, M. Tarsalewska, A. Sardinha. An equilibrium analysis of feed-in tariff remuneration: market-dependent and market independent models. Conference on Corporate Sustainability and Eco-innovations, Warsaw, Poland, Nov. 2013.
Luís de Andrade de Freitas
“In the last decades, High Voltage Direct Current (HVDC) systems have had extensive growth due to the great development that has occurred in AC-DC-AC conversion technology based on power electronics, and also for being strongly promoted as a great solution for the connection of renewable energy sources through long distances, both offshore and onshore. However, there are still problems in the operation and maintenance of HVDC systems that can be reviewed and updated. Such is the case of automated methods of fault location. All currently available commercial methods are based on traveling wave technologies. These methods can have good accuracy, but they also have some disadvantages, such as the need for expensive measuring equipment dedicated exclusively to this purpose, and problems for detecting high impedance faults or faults close to the line terminals. This thesis develops a method for fault location on HVDC lines based on line impedance estimation, as a proposal to complement the current methods in cases where commercial methods are not capable to give a satisfactory result. The reason to develop this method based on a different technology than traveling wave, is because it’s intended to prevent the problems that affect these type of technologies. The proposed method uses a mathematical model of the transmission line as a basis for estimating the line’s impedance. This model was specifically attained to use in this project, and it was deducted from the transmission line differential equations in the time-domain. For this deduction is not required any approximation, so it was obtained a model that brings high accuracy to the fault location method. The method’s behavior is evaluated from the technical point of view, using both actual fault records and simulated fault records. The results are compared with results obtained by traditional methods in order to verify the performance of the different methods. The proposed method aims to assist in the operation process of HVDC systems, providing a robust fault locator, with high accuracy, and low cost. This method is intended to replace the current traveling wave-based methods, or at least complement them in cases where traditional methods have not performed well.”
Publications
- L. de Andrade, H. Leite and M.T. Ponce de Leão. Time-Domain Distributed Parameters Transmission Line Model for Transient Analysis. Progress In Electromagnetics, Research B Journal, Vol. 53, pp. 25-46, 2013.
- L. de Andrade and M.T. Ponce de Leão. Fault Location for Transmission Lines Using Wavelet . IEEE Latin America Trasactions, Vol. 12, No. 6, pp. 1043-1048, 2014.
- L. de Andrade and E. Sorrentino, Inclusion of the Zero-Sequence Mutual Impedance in a Distributed Parameter Model of Transmission Lines, In Proceedings of IEEE 9th International Conference on Environment and Electrical Engineering, Prague, Czech Republic, pp. 242-245, May 2010,
- L. de Andrade, P. De Oliveira and M. Ponce de Le~ao, Current Strategic Environmental Assessment in the Electrical Industry, In Proceedings of IEEE 11th International Conference on Electrical Power Quality and Utilisation, Lisbon, Portugal, p. 6,
- L. de Andrade and M. Ponce de Le~ao, Faults Location Methods Reviews for Transmission Lines, In Proceedings of CIGRE III Congreso Venezolano de Redes y Energa Electrica, Caracas, Venezuela, p. 8, March 2012
- L. de Andrade and M. Ponce de Le~ao, Travelling Wave Based Fault Location Analysis for Transmission Lines, In Proceedings of 2nd European Energy Conference, Maastricht, Netherlands, p. 9, April 2012
- L. de Andrade and M. Ponce de Le~ao, Impedance-Based Fault Location Analysis for Transmission Lines, In Proceedings of IEEE PES Transmission and Distribution Conference, Orlando, USA, p. 6, May 2012
- L. de Andrade and M. Ponce de Le~ao, A Brief History of Direct Current in Electrical Power Systems, In Proceedings of IEEE History of Electro-technology Conference, Pavia, Italy, p. 6, September 2012
- L. de Andrade and M. Ponce de Le~ao, Current Interoperability of Electrical Systems, In Proceedings of IEEE IV International Congress on Ultra Modern Telecommunications and Control Systems, St. Petersburg, Russia, pp. 423-427, October 2012
- L. de Andrade and M. Ponce de Le~ao, Direct Current Power Systems, In Proceedings of CIGRE Smarts Grids: Next Generation Grids for New Energy Trends International Symposium, Lisbon, Portugal, p. 8, April 2013
- L. de Andrade, Y. Blanco and M. Ponce de Le~ao, Using Power Systems Simulation Software for Fault Analysis, In Proceedings of Encontro Regional Ibero-americano do CIGRE, Foz do Iguacu, Brasil, p. 8, May 2013
- Carlos Alberto Henggeler de Carvalho Antunes, Faculdade de Ciências e Tecnologia da Universidade de Coimbra;
- José Manuel Dias Ferreira de Jesus, Técnico Lisboa da Universidade de Lisboa;
- João Paulo Tomé Saraiva, Faculdade de Engenharia da Universidade do Porto;
- José Rui da Rocha Pinto Ferreira, Faculdade de Engenharia da Universidade do Porto);
- Maria Teresa Costa Pereira da Silva Ponce de Leão, Faculdade de Engenharia da Universidade do Porto.
Luísa Dias Pereira
- L. Dias Pereira, D. Raimondo, S.P.Corgnati, M.Gameiro da Silva,“ Assessment of indoor air quality and thermal comfort in Portuguese secondary classrooms: Methodology and results”, Building and Environment, 2014, doi:0.1016/j.buildenv.2014.06.008;
- L.Dias Pereira, Martim de Freitas School: IAQ and Energy Audit, LAP LAMBERT Academic Publishing (ISBN: 978-3-659-19249-4), 2014
- L.Dias Pereira, E. Cardoso, M.G. da Silva,“ Indoor air quality audit and evaluation on thermal comfort in a school in Portugal”, Indoor and Built Environment, 2013, doi:10.1177/1420326X13508966
- VII Mediterranean Congress of Climatization – Climamed’13. Luísa Dias Pereira, Hermano Bernardo, Manuel Gameiro da Silva: “Energy performance of school buildings: from energy certificates to benchmarking”
- 1st International Congress on Energy & Environment: bringing together Economics and Engineering. Manuel Gameiro da Silva, Carlos Henggeler Antunes, Hermano Bernardo, Humberto Jorge, Luís Cruz, Eduardo Barata, Luísa Dias Pereira, Mariana Coimbra, Gonçalo Luis, Luis Borges, Luís Neves, José Costa: “A preliminary assessment of energy performance in refurbished schools”.
- YRSB13 – iiSBE Forum of Young Researchers in Sustainable Building 2013.Luisa Dias Pereira, Nelson Soares, João Pedro Ferreira, Pedro Conceição, Patrícia Pereira da Silva:“Improvement of the Energy Efficiency of a Portuguese University Building”.
- People and Buildings MC2012. Luísa Dias Pereira, Edna Cardoso, Manuel Gameiro da Silva: “An evaluation of Indoor Climate in a school building in Portugal”.
- CINCOS’12. Nelson Soares, João Pedro Ferreira, Luísa Dias Pereira, Pedro Conceição, Patrícia Pereira da Silva : “Energy efficiency of the Faculty of Economics of the University of Coimbra: assessment of the users’ behaviour ”.
- Energy Night -MIT Portugal Energy Club, 2012. Luísa Dias Pereira, Manuel Gameiro da Silva: “Energy Efficiency Plans for (renewed) Schools”.
- X Iberoamerican Congress on Mechanical Engineering. Luísa Dias Pereira, Edna Cardoso, Manuel Gameiro da Silva: “Escola Martim de Freiras, IAQ & Thermal Comfort evaluation”.
Manuel Rocha
Manuel Silva
Manuela Carreiras
Marco Estrela
Maria Kapsalaki
Mariana Pereira
Marta Lopes
Marta Mota
Marta Mota’s research was supervised by Eduardo Guimarães Oliveira Fernandesa (FEUP) and co-supervised by Maria Isabel Rebelo Teixeira Soares (FEP).
Mathieu Richard
Michal Monit
Miguel Covas
Miguel Covas successfully discussed his thesis on December, 12th, 2013 with the following members of the jury:
- Richard Neufville , Massachusetts Institute of Technology;
- Paulo Ferrão, Técnico Lisboa, ULisboa;
- João Sousa, Técnico Lisboa, ULisboa;
- Luís Dias, Faculdade de Economia, UCoimbra;
- João Claro, FEUP, UPorto;
- Carlos Santos Silva, Técnico Lisboa, ULisboa.
- M.Covas, “Cloud Computing and Energy Eficiency”, Jornadas Engenharia Electrotécnica e Computadores, UBI , Covilhã November 2013
- M.Covas, “Data Centers de Nova Geração”, 1st International Conference in Digital Game Design and Development, UBI , Covilhã April 2013.
- M.Covas, “Green Data Centers”, INFOTEC’13 (Fórum de Informática e Novas Tecnologias), IPCB, Castelo Branco April 2013.
- M.Covas, “Sustainable Data Centers”, Jornadas Informática IPG 2013, Guarda April 2013.
- M.Covas, “Data Center da PT na Covilhã, um dos maiores do mundo!” Ordem dos Engenherios, Coimbra November 2012.
- M. Covas, C. Silva, L. Dias, “On locating sustainable Data Centers in Portugal: problem structuring and GIS-based analysis”, Sustainable Computing Journal, 3, 27-25, 2013.
- M. Covas, C. Silva, L. Dias, “Multi-Criteria Decision Analysis for Sustainable Data Centers Location”, International Transactions in Operational Research Journal, 3, 269-299, 2013.
- M. Covas, C. Silva, L. Dias, “Multi-Criteria Assessment of Data Centers Environmental Sustainability”, Handbook on Case Studies in Evaluation and Decision Models with Multiple Criteria, Springer, 2013 (in preparation).
- M.Covas, “Green Data Centers and Cloud Computing”, Jornadas Informática UBI2012; Covilhã, March 2012.
- Orador – “ Abertura Solene Ano Lectivo Curso Eng. Aeronáutica da UBI”, Tema: Green Data Centers and Cloud Computing; UBI, Covilhã, Novembro 2011
- M.Covas, “New Generation of Data Centers”, International Conference on Engineering UBI2011, Covilhã, November 2011.
- M.Covas, C.Silva, L.Dias, “Multi Criteria Decision Making for Greener Data Centers”- 2nd MIT Portugal Annual Conference, September 2010.
- M. Covas, C.Silva, L. Dias , “ Search Analysis to Locate a Sustainable Data Center in Portugal using GIS”, Euro XXIV – 24th European Conference on Operational Research, Lisbon, July 2010.
- M.Covas, “Data Center Efficiency”, XXI Revolutions – Green Technology Seminar, Instituto Superior Técnico (IST), Oeiras-Porto Salvo, March2010.
- Poster –M.Covas, “Sustainable Data Centers”- MIT Portugal Annual Conference, Lisbon, June 2009.
Miguel Heleno
Thesis Title: Provision of Advanced Ancillary Services through Demand Side Integration Thesis Abstract: In the context of Smart Grids, the intermittence of renewable sources requires new ancillary services. This thesis aims at developing a technical framework on the provision of electricity reserve services through Demand Response (DR) strategies. Methods to quantify the potential of the domestic appliances to provide upward and downward reserve to the system are developed and the market and regulation aspects of DR are discussed.In the context of Smart Grids, the intermittence of renewable sources requires new ancillary services. This thesis aims at developing a technical framework on the provision of electricity reserve services through Demand Response (DR) strategies. Methods to quantify the potential of the domestic appliances to provide upward and downward reserve to the system are developed and the market and regulation aspects of DR are discussed. Supervisors: Manuel Matos (FEUP), João Peças Lopes (FEUP)
Miguel Moreira da Silva
Nathan Coenen Lee
Nelson Brito
Nelson Soares
- N. Soares, A.R. Gaspar, P. Santos, J.J. Costa (2014), Multi-dimensional optimization of the incorporation of PCM-drywalls in lightweight steel-framed residential buildings in different climates, Energy and Buildings (in press). doi: 10.1016/j.enbuild.2013.11.072
- N. Soares, J.J. Costa, R. Vicente, A. Samagaio (2014), PCM-shutter: a new system using solar thermal energy for winter night time indoor heating, Journal of Building Physics (in press). doi: 10.1177/1744259113496388
- N. Soares, J.J. Costa, A.R. Gaspar, P. Santos (2013), Review of passive PCM latent heat thermal energy storage systems towards buildings’ energy efficiency, Energy and Buildings 59 (2013) 82-103. doi:10.1016/j.enbuild.2012.12.042
- T. Silva, R. Vicente, N. Soares, V. Ferreira (2012), Experimental testing and numerical modeling of masonry wall solution with PCM incorporation: a passive construction solution, Energy and Buildings 49 (2012) 235-245. doi: 10.1016/j.enbuild.2012.02.010
Nilton Oliveira
Nuno Carvalho Figueiredo
Nuno Climaco Pereira
Nuno Creado
Nuno Martins
- G. Carrilho da Graça, N. Martins, C. S. Horta, Thermal and airflow simulation of a naturally ventilated shopping mall, Energy and Buildings,50, 177-188,2012
- N. Martins, G. Carrilho da Graça, A climate performance indicator for analysis of low energy buildings, “Proceedings of BS2013: 13th Conference of International Building Performance Simulation Association, Chambéry, France, August 26-28, p.1348-1356, 2013
Nuno Santos
Onésimo Silva
Patrícia Baptista
A methodology was developed in order to estimate yearly evolution of the road transportation sector and the impacts in terms of energy consumption and local and global emissions. Additionally, decision support scooping maps were also developed in order to understand the minimum and maximum energy and emissions bounds for the road transportation and to identify the main drivers influencing this sector.
In a full life-cycle approach, the BAU presented a 30% increase in energy consumption and 18% increase in CO2 emissions in 2050 compared to the 1990 value. The minimum limit was obtained considering a low population and fleet profiles, with mobility reductions happening, in an hydrogen or electricity powered vision and a high shift to alternative vehicle technologies and allowed a 52% reduction in 2050 compared to the BAU for energy consumption and 64% for CO2 emissions. If an option of high population, high vehicle density fleet profile, without mobility reduction, in a vision that does not shifts to alternative vehicle technologies was considered a maximum 32% increase in 2050 compared to the BAU both for energy and CO2 was observed.
Supervisors: Tiago Farias (IST), Carlos Silva (IST), John Heywood (MIT) Research topic/ area: Green Islands Project
Pedro Cabral Vicente
Pedro Carvalho Miguel
This research is inserted in the development of a PhD Thesis at the University of Coimbra and also in the collaborative scope of the Energy Box Group comprising researchers of the Institute for Systems Engineering and Computers at Coimbra, the Institute of Cognitive Psychology, Vocational and Social Development and the Massachusetts Institute of Technology.
Research Interest: The Energy Box concept will be studied, as an instrument to assess the attractiveness to the distribution system operator, among other agents, to promote the installation or use of REMS. The study will evolve to provide simulation scenarios in order to determine the Energy Box value under different conditions of, e.g., penetration, resource use, load controllability, type of consumers, season of the year and electricity price.
Thesis Title: Methodology to simulate the impact of a large deployment of a residential energy management system in the electricity grid Supervisors: Professor António Gomes Martins (FCTUC); Professor Luís Miguel Pires Neves (IPLeiria) Publications: Miguel, Pedro; Neves, Luís; Martins, A. G. 2014. “Methodology to simulate the impact of a large deployment of a residential energy management system in the electricity grid”, Electric Power Systems Research 116, EPSR116: 399 – 407;doi: 0.1016/j.epsr.2014.07.012 Communications and conference presentations: Miguel, Pedro C; Neves, Luís M. P; Martins, António M. O. G; Sousa, João M. C.. 2013. “Review of load research studies applied to the Portuguese household sector”, Trabalho apresentado em 7th International Conference on Energy Efficiency in Domestic Appliances and Lighting (EEDAL2013), In 7b – Demand Response, Coimbra; doi: 10.2790/2313 .
Pedro Fazenda
Pedro Fonte
Pedro Gonçalves
Thesis Title (2013): Energy and exergy assessments for an enhanced use of energy in buildings Thesis abstract: Exergy analysis has been found to be a useful method for improving the conversion efficiency of energy resources, since it helps to identify locations, types and true magnitudes of wastes and losses. It has also been applied for other purposes, such as distinguishing high- from low-quality energy sources or defining the engineering technological limits in designing more energy-efficient systems. In this doctoral thesis, the exergy analysis is widely applied in order to highlight and demonstrate it as a significant method of performing energy assessments of buildings and related energy supply systems. It aims to make the concept more familiar and accessible for building professionals and to encourage its wider use in engineering practice. This thesis is divided into five main cases studies, which have different scopes and follow slightly different approaches but all with the same common objective. Case study I aims to show the importance of exergy analysis in the energy performance assessment of eight space heating building options evaluated under different outdoor environmental conditions. This study is concerned with the so-called “reference state”, which in this study is calculated using the average outdoor temperature for a given period of analysis. Primary energy and related exergy ratios are assessed and compared. Higher primary exergy ratios are obtained for low outdoor temperatures, while the primary energy ratios are assumed as constant for the same scenarios. The outcomes of this study demonstrate the significance of exergy analysis in comparison with energy analysis when different reference states are compared. Case study II and Case study III present two energy and exergy assessment studies applied to a hotel and a student accommodation building, respectively. Case study II compares the energy and exergy performance of the main end uses of a hotel building located in Coimbra in central Portugal, using data derived from an energy audit. The results show that the most energy-efficient hotel end use does not necessarily correspond to the most exergy-efficient one. A diagram including information related to primary energy demand and energy and exergy efficiencies is proposed, revealing to be a very useful tool for including in future legislation on energy performance of buildings. Case study III uses data collected from energy utilities bills to estimate the energy and exergy performance associated to each building end use. Furthermore, the building end uses are ranked by inefficiencies or exergy destruction levels, using the concept of “Exergy Destruction Ratio”. Additionally, a set of energy supply options are proposed and assessed as primary energy demand and exergy efficiency, showing it as a possible benchmarking method for future legislative frameworks regarding the energy performance assessment of buildings. Case study IV proposes a set of complementary indicators for comparing cogeneration and separate heat and electricity production systems. It aims to identify the advantages of exergy analysis relative to energy analysis, giving particular examples where these advantages are significant. The results demonstrate that exergy analysis can reveal meaningful information that might not be accessible using a conventional energy analysis approach, which is particularly evident when cogeneration and separated systems provide heat at very different temperatures. Case study V follows the exergy analysis method to evaluate the energy and exergy performance of a desiccant cooling system, aiming to assess and locate irreversibilities sources. The results reveal that natural gas boiler is the most inefficient component of the plant in question, followed by the chiller and heating coil. A set of alternative heating supply options for desiccant wheel regeneration is proposed, showing that, while some renewables may effectively reduce the primary energy demand of the plant, although this may not correspond to the optimum level of exergy efficiency. The thermal and chemical exergy components of moist air are also evaluated, as well as, the influence of outdoor environmental conditions on the energy/exergy performance of the plant. This research provides knowledge that is essential for the future development of complementary energy- and exergy-based indicators, helping to improve the current methodologies on performance assessments of buildings, cogeneration and desiccant cooling systems. The significance of exergy analysis is demonstrated for different types of buildings, which may be located in different climates (reference states) and be supplied by different types of energy sources. Full Thesis is available for download at Universty of Coimbra.
Pedro Neto
Pedro Nunes
Pedro Rocha Almeida
Pedro Silva
Pedro Vicente
Raquel Segurado Silva
- 6th May 2008 – Participation in the Workshop of the EMINENT Project “Early-Stage Energy Technologies for Sustainable Future: Assessment Development, Application”, held in the University of Pannonia, in Veszprém, Hungary, with the paper: Comparison between EMINENT and other Energy Technology Assessment Tools
- 15th May 2008 – Participation in the International Conference Cities and Climate Change, held in the Centre of Geographical Studies of the University of Lisbon, in Portugal, with the poster: Energy and Climate Change Strategy for the Municipality of Cascais
Reza Fazeli
Ricardo Abrantes
Ricardo Barbosa Vicente
Ricardo Bessa
Ricardo Manso
Rita Garcia
Rita Hogan Almeida
Conference posters: Rita Hogan Almeida, Miguel Centeno Brito, Solar energy kiosks. 2015 MIT Portugal Annual Conference – Light: Designed by Nature, Transformed by Science, 19 June 2015, Lisbon, Portugal, and 1st Joint Conference and Exhibition of the International Partnerships – Fostering Science and Innovation Ecosystems, Portugal-USA Partnerships, 28-29 May 2015, Lisbon, Portugal
Rita Paleta
Rui Bernardo
Rui Gomes
- António Oliveira Falcão, IST ULisboa
- Francisco Taveira Pinto, FEUP
- António Almeida, IST ULisboa
- Luís Gato, IST ULisboa
- Nuno Fonseca, IST ULisboa
- Paulo Justino, LNEG
Sandrina Pereira
Sara Moreira Coelho de Magalhães
Sequeira Gomes
Sérgio Casimiro
Seyedeh Shiva Saadatian
- S. Saadatian & B. Chenari “Cities and Nature ”, INTED2014, 8th International Conference on Technology, Education and Development, Valencia, Spain, 2014. http://iated.org/inted/announcement
- B. Chenari, A. Frreira & S. Saadatian “Wave energy systems_ an overview of different wave energy convertors and recommendation for future improvements”, INTED2014, 8th International Conference on Technology, Education and Development, Valencia, Spain, 2014.http://iated.org/inted/announcement
- S. Saadatian &. F. Freire F, & N. Simões & B. Chenari ,“Comparative life-cycle assessment of three foam insulation materials used in Portuguese residential buildings”, ICERE 2014, International Conference on Environment and Renewable Energy, Paris,France, 7-8 May 2014.http://energy.conference-site.com/
- B. Chenari, S.Saadatian & A.D. Ferreira, “Numerical Modelling of RegularWaves Propagation and Breaking Using waves2Foam”, ICEER2014, International Conference on Energy and Environment Research, Madrid, Spain, 2014.http://www.iceer.net/index.htm