Banca de QUALIFICAÇÃO: DANIEL ROLDOLFO SOUZA DA SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : DANIEL ROLDOLFO SOUZA DA SILVA
DATE: 18/09/2020
TIME: 14:30
LOCAL: sala 414 e virtual
TITLE:

Cogeneration cycle with sugarcane bagasse - exergoeconomic and exergoenvironmental analysis. Case study

KEY WORDS:

Cogeneration; Exergoeconomy; Life cycle assessment; Sugarcane bagasse-fired; Biomass; Exergoenvironmental analysis; Eco-indicator 99.

PAGES: 85
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Engenharia Térmica
SPECIALTY: Controle Ambiental
SUMMARY:

The electricity production with low environmental impacts has been in the spotlight in recent years. One of the strategies to achieve greener 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. A cogeneration system of sugarcane bagasse which production of 22 MW net electricity and 10.94 MW steam is carried out. The combustion takes into account CO2 and SO2 emissions. A Life Cycle Assessment was developed for Brazilian sugarcane bagasse, employing the Eco-indicator 99 method, which yielded 6.73 mPt/kg. It was verified that the majority of exergy destruction (61.57%) occurred in the boiler furnace. The specific environmental impacts associated with electricity and steam are 6.023 mPt/MJ and 4.038 mPt/MJ, respectively. SO2 emissions represent 97.01% of the environmental impact rate due to pollutant formation. 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.

BANKING MEMBERS:
Presidente - 1753416 - EDUARDO JOSÉ CIDADE CAVALCANTI
Interno - 3061606 - THIAGO CARDOSO DE SOUZA
Externo à Instituição - MONICA CARVALHO - UFPB