Análise de custo exergético de ciclo híbrido para queima de lixo urbano

• Autor(a) principal: Mollica, Gustavo José Gonçalves [UNESP]
• Data de Publicação: 2017
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/156963; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2018-08-28/000906238.pdf
• topic: Resíduos sólidos; Incineradores; Termoeconomia; Incinerators

The increasing generation of municipal solid waste (MSW) is one of the biggest problems of society nowadays. Incorrect disposition of this material causes major impacts to the human health e also to the environment. Incineration of MSW with energy recovery in plants know as Waste to Energy (WTE) is one of the main ways found by many countries to try and soften this situation. Those plants have a very high operation and maintenance cost, though, which make developing countries as Brazil to give preference for current means of waste disposition. Another big problem faced by society and that has also been very discussed in the last decades is the pollutant gas emissions, mostly the ones responsible for the greenhouse effect, launched in the atmosphere in the burning of fossil fuels. To control these pollutant emissions international treaties as the Kyoto protocol have introduced the concept of carbon tax, a tax to be charged for the emission of carbon dioxide, which has already been used in many countries. The objective of this study is to apply the carbon exergy tax method in WTE plants to investigate its application and try and propose ways that encourage the utilization of this technology. The carbon exergy tax method utilizes concepts brought from Thermoeconomics and bases itself in the efficiency and type of fuel used in the cycles studied to obtain a value for the carbon tax, that differently from current taxes, is not based on political considerations. For that it was used the theory of exergetic cost to calculate the exergetic costs e subsequent values of exergy lost to the environment and destroyed exergy. From the results found it was possible to propose a modification to the method to consider the environmental aspect of waste's destruction, in this way promoting the destruction of this material. The results found promote the... (Complete abstract, click electronic access below)