Exergoenvironmental results of a eucalyptus biomass-fired power plant

Forest biomass has always played an important role in the Brazilian energy mix, with eucalyptus presenting high levels of production and productivity. Due to the high expected potential of this woody biomass, this study assesses this resource for thermal energy production, contributing to the expans...

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Principais autores: Cavalcanti, Eduardo José Cidade, Carvalho, Monica, Azevedo, Jonathan Leandro Brandão de
Formato: article
Idioma:English
Publicado em: Elsevier
Assuntos:
Exergy
Exergoenvironmental analysis
Steam turbine
Biomass
Eucalyptus
Endereço do item:https://repositorio.ufrn.br/handle/123456789/31620
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spelling ri-123456789-316202023-02-02T22:10:52Z Exergoenvironmental results of a eucalyptus biomass-fired power plant Cavalcanti, Eduardo José Cidade Carvalho, Monica Azevedo, Jonathan Leandro Brandão de Exergy Exergoenvironmental analysis Steam turbine Biomass Eucalyptus Forest biomass has always played an important role in the Brazilian energy mix, with eucalyptus presenting high levels of production and productivity. Due to the high expected potential of this woody biomass, this study assesses this resource for thermal energy production, contributing to the expansion of this sector and to energy transition strategies. This study developed a Life Cycle Assessment (LCA) to quantify the environmental impacts associated with the combustion of eucalyptus. LCA data, which included the procurement of eucalyptus and wood ash treatment, was implemented in exergy and exergoenvironmental analyses, based on the SPecific Exergy COsting (SPECO) approach, for a steam power plant fueled by eucalyptus biomass. Fuel combustion takes into account the formation of pollutants. The high moisture content of biomass affects the overall and boiler exergy efficiencies. The components with worse environmental performance are those with high environmental impact rates associated with exergy destruction (feed water and pump). The environmental impact rate per exergy unit of electricity is 7715 mPt/GJ. A sensitivity analysis verifies the effect of biomass moisture on boiler efficiency and on the specific environmental impact associated with power, concluding that an increase in boiler efficiency increases global efficiency and decreases the specific environmental impact, resulting in a reduction of global exergy destruction 2021-03-02T00:13:51Z 2021-03-02T00:13:51Z 2019-12-15 article CAVALCANTI, Eduardo J.C.; CARVALHO, Monica; AZEVEDO, Jonathan L. B.. Exergoenvironmental results of a eucalyptus biomass-fired power plant. Energy, [S.L.], v. 189, p. 01-116188, dez. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0360544219318833. Acesso em: 22 dez. 2020. http://dx.doi.org/10.1016/j.energy.2019.116188. 0360-5442 https://repositorio.ufrn.br/handle/123456789/31620 10.1016/j.energy.2019.116188 en Elsevier
institution Repositório Institucional
collection RI - UFRN
language English
topic Exergy
Exergoenvironmental analysis
Steam turbine
Biomass
Eucalyptus
spellingShingle Exergy
Exergoenvironmental analysis
Steam turbine
Biomass
Eucalyptus
Cavalcanti, Eduardo José Cidade
Carvalho, Monica
Azevedo, Jonathan Leandro Brandão de
Exergoenvironmental results of a eucalyptus biomass-fired power plant
description Forest biomass has always played an important role in the Brazilian energy mix, with eucalyptus presenting high levels of production and productivity. Due to the high expected potential of this woody biomass, this study assesses this resource for thermal energy production, contributing to the expansion of this sector and to energy transition strategies. This study developed a Life Cycle Assessment (LCA) to quantify the environmental impacts associated with the combustion of eucalyptus. LCA data, which included the procurement of eucalyptus and wood ash treatment, was implemented in exergy and exergoenvironmental analyses, based on the SPecific Exergy COsting (SPECO) approach, for a steam power plant fueled by eucalyptus biomass. Fuel combustion takes into account the formation of pollutants. The high moisture content of biomass affects the overall and boiler exergy efficiencies. The components with worse environmental performance are those with high environmental impact rates associated with exergy destruction (feed water and pump). The environmental impact rate per exergy unit of electricity is 7715 mPt/GJ. A sensitivity analysis verifies the effect of biomass moisture on boiler efficiency and on the specific environmental impact associated with power, concluding that an increase in boiler efficiency increases global efficiency and decreases the specific environmental impact, resulting in a reduction of global exergy destruction
format article
author Cavalcanti, Eduardo José Cidade
Carvalho, Monica
Azevedo, Jonathan Leandro Brandão de
author_facet Cavalcanti, Eduardo José Cidade
Carvalho, Monica
Azevedo, Jonathan Leandro Brandão de
author_sort Cavalcanti, Eduardo José Cidade
title Exergoenvironmental results of a eucalyptus biomass-fired power plant
title_short Exergoenvironmental results of a eucalyptus biomass-fired power plant
title_full Exergoenvironmental results of a eucalyptus biomass-fired power plant
title_fullStr Exergoenvironmental results of a eucalyptus biomass-fired power plant
title_full_unstemmed Exergoenvironmental results of a eucalyptus biomass-fired power plant
title_sort exergoenvironmental results of a eucalyptus biomass-fired power plant
publisher Elsevier
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/31620
work_keys_str_mv AT cavalcantieduardojosecidade exergoenvironmentalresultsofaeucalyptusbiomassfiredpowerplant
AT carvalhomonica exergoenvironmentalresultsofaeucalyptusbiomassfiredpowerplant
AT azevedojonathanleandrobrandaode exergoenvironmentalresultsofaeucalyptusbiomassfiredpowerplant
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