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Revista Virtual de Química
Article . 2021 . Peer-reviewed
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Exergoeconomic Analysis of Corncob Gasification Integrated to a Power Generation System: Case Study in Colombia

Análise Exergoeconômica da Gasificação de Sabugo de Milho Integrado em um Sistema de Geração de Energia: Estudo de Caso na Colômbia
Authors: Jorge Mario Mendoza Fandiño; Jesús David Rhenals Julio; Adrián Enrique Ávila Gomez; Elías Ricardo Durango Padilla;

Exergoeconomic Analysis of Corncob Gasification Integrated to a Power Generation System: Case Study in Colombia

Abstract

O objetivo deste trabalho foi realizar um modelo exergoeconomico da gaseificacao de sabugo de milho com vapor de agua como agente gaseificante acoplado a um motor de combustao interna para gerar energia eletrica. Inicialmente, a caracterizacao fisico-quimica das amostras foi realizada mediante analise imediata, elementar e poder calorifico superior (PCS). Os resultados da caraterizacao foram 65.23% para material volateis, 16.54% para carbono fixo e 13.53 MJ/kg de PCS. Realizando uma simulacao inicialmente no software Aspen HYSYS, obtendo-se um gas com poder calorifico de 12.41 MJ/kg. Posteriormente, determinou-se um custo exergoeconomico de geracao de 0.040 USD/kWh para um sistema de 10,1 MW, sendo calculada uma taxa interna de retorno (TIR) de 65,75% para um periodo de 20 anos. Finalmente, foi realizada uma otimizacao do sistema de integracao energetica utilizando a metodologia da superficie de resposta (RSM) no software Statgraphics, obtendo um potencial de geracao de 10,55 MW, um custo de geracao de 0.037 USD/kWh e uma eficiencia exergetica de 45,8% com a qual foi obtida uma TIR de 68,71%. Alem disso, foi determinado o impacto do tamanho da planta no custo de geracao e na TIR, determinou-se que o tamanho do equilibrio foi de 770 kW obtido com um fluxo massico de entrada de 360 kg/h. Os custos determinados sao do tipo III e, portanto, tem uma incerteza de 15%.

Country
Brazil
Keywords

Optimization, 670, Biomass, Exergy, Simulation

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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