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Optimization of small scale cogeneration systems : comparison of nonlinear optimization algorithms

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Detalhes bibliográficos
Resumo:The use of Combined Heat and Power (CHP) technologies is increasing due to the liberalization onf energy market, energy efficiency concerns and the emphasis o distributed power generation systems. The main objective of the present work is to implement an analysis that will lead to the optimal design of a small cogeneration system, given the thermal power duration curve of a multi-family residential building. A nonlinear optimization model was implemented in MatLab environment using two distinct optimization methods: the Box and the SQP method. The optimal solution for the small CHP presented a positive annual worth and disclosed reasonable values for the decision variables of the thermo-economic model. The results were identical for both methods, demonstrating the validity of the implemented approach.
Autores principais:Ferreira, Ana C. M.
Outros Autores:Nunes, Manuel L.; Martins, Luís Barreiros; Teixeira, S. F. C. F.
Assunto:Numerical optimization Cogeneration systems Thermo-economic assessment
Ano:2012
País:Portugal
Tipo de documento:comunicação em conferência
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho
Descrição
Resumo:The use of Combined Heat and Power (CHP) technologies is increasing due to the liberalization onf energy market, energy efficiency concerns and the emphasis o distributed power generation systems. The main objective of the present work is to implement an analysis that will lead to the optimal design of a small cogeneration system, given the thermal power duration curve of a multi-family residential building. A nonlinear optimization model was implemented in MatLab environment using two distinct optimization methods: the Box and the SQP method. The optimal solution for the small CHP presented a positive annual worth and disclosed reasonable values for the decision variables of the thermo-economic model. The results were identical for both methods, demonstrating the validity of the implemented approach.