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Energy, exergy and exergoenvironmental analyses of a sugarcane bagasse power cogeneration system

Cavalcanti, Eduardo J.C. ; Carvalho, Monica ; da Silva, Daniel R.S.

Energy conversion and management, 2020-10, Vol.222, p.113232-113232, Article 113232 [Periódico revisado por pares]

Oxford: Elsevier Ltd

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  • Título:
    Energy, exergy and exergoenvironmental analyses of a sugarcane bagasse power cogeneration system
  • Autor: Cavalcanti, Eduardo J.C. ; Carvalho, Monica ; da Silva, Daniel R.S.
  • Assuntos: Bagasse ; Biomass ; Cogeneration ; COVID-19 ; Eco-indicator 99 ; Electric power generation ; Electricity ; Environmental impact ; Exergoenvironmental analysis ; Exergy ; Life cycle analysis ; Life cycle assessment ; Life cycles ; Pollutants ; Power plants ; Radiators ; Renewable resources ; Steam ; Steam electric power generation ; Sugarcane ; Sugarcane bagasse ; Sustainability ; Sustainable yield ; Thermodynamics
  • É parte de: Energy conversion and management, 2020-10, Vol.222, p.113232-113232, Article 113232
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: •A cogeneration power plant fueled with sugarcane bagasse was evaluated.•Energy, exergy and exergoenvironmental analyses were developed.•The environmental impact of sugarcane bagasse is 6.73 mPt/kg.•The predominant emissions were sulfur dioxide.•The specific environmental impact of electricity is 6.023 mPt/MJ. One of the strategies to reduce the environmental impacts associated with electricity is to employ renewable resources such as biomass or even waste. However, the evaluation of the sustainability of a power plant depends on the development of several analyses, which should encompass thermodynamic and environmental parameters. Energy, exergy, and exergoenvironmental assessments are carried out for a sugarcane bagasse cogeneration system, along with a Life Cycle Assessment for the Brazilian sugarcane bagasse, employing the Eco-indicator 99 method. The specific environmental impacts of electricity and steam are 6.023 mPt/MJ and 4.038 mPt/MJ, respectively, and the boiler feed pump and radiator presented the highest average environmental impact per exergy of fuel and product, respectively. The component with the highest exergoenvironmental factor was the furnace (60.32%), demonstrating margins for benefits in the formation of pollutants and destruction of exergy. Exergoenvironmental assessments can be utilized to support the adoption of more efficient (although more complex) cogeneration systems, especially in the aftermath of the COVID-19 crisis.
  • Editor: Oxford: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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