Desenvolvimento de método exergoeconômico-ambiental: uso do biogás em motores de combustão interna

• Ano de defesa: 2016
• Autor(a) principal: Vane, Lucas Fachini [UNESP]
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Biogás; Aspectos energéticos; Exergéticos e ecológicos; Análise exergoeconomica-ambiental; Biogas; Energy; Exergetic and ecologic aspects; Exergoeconomic-environmental analysis
• Link de acesso: http://hdl.handle.net/11449/148810

In this thesis an econometric-environmental analysis methodology applied in generator-engines operating with biogas for the simultaneous production of electric energy and hot water is developed. The method developed has the objective of measuring the cost of CO2 emissions for this system, as well as to study its influence on the cost of operation by the technique of exergy cost of manufacture. The method is applied to internal combustion engines operating with biogas, with a production capacity of electric energy ranging from 4 kW to 2 MW, using or not the jacket water to produce hot water, depending on the type of engine cooling (air or water cooled). Two methods are applied for exergoeconomic-environmental analysis, the first one based on the method of cost distribution by the unitary exergy flows of the products and another based on the exergetic increments of the system components. It is concluded that both methods are satisfactory to evaluate the impact of the emission cost of pollutants and that the influence of this in the cost of exergético manufacture increases between 9,4% and 19,6% in relation to the traditional methods that do not consider the cost of pollution.