Original scientific paper
https://doi.org/10.13044/j.sdewes.d6.0237
Effect of Process Parameters on Bioelectricity Production, Energy and Environmental Performance
Claudia C. Sanchez Moore
; Chemical Engineering Department, Polytechnic School of the University of São Paulo, Av. Prof. Luciano Gualberto, travessa 3 nº 380, São Paulo, Brazil
Laíse Anton
; Chemical Engineering Department, Polytechnic School of the University of São Paulo, Av. Prof. Luciano Gualberto, travessa 3 nº 380, São Paulo, Brazil
Fernando H. Cardoso
; Chemical Engineering Department, Polytechnic School of the University of São Paulo, Av. Prof. Luciano Gualberto, travessa 3 nº 380, São Paulo, Brazil
Luiz Kulay
orcid.org/0000-0003-1107-1800
; Chemical Engineering Department, Polytechnic School of the University of São Paulo, Av. Prof. Luciano Gualberto, travessa 3 nº 380, São Paulo, Brazil
Abstract
This study evaluates the energy and environmental performance of a cogeneration system operating simultaneously with bagasse and straw in a rankine cycle. Different process conditions, defined in terms of boiler operating pressure, moisture content and straw addition rate, were analyzed. The combination of these parameters led to the elaboration
of one hundred and twenty-five analysis scenarios. The energy profile was based on the energy performance indicator, which is the ratio between the exported electricity and the intrinsic energy of biomass consumed for its generation, and the environmental assessment was performed in terms of climate change. Scenario modeling was developed
according to the conceptual framework proposed by the life cycle assessment technique with a ‘from cradle-to-gate’ coverage. Results indicate that the best energy and environmental performances (energy performance indicator = 0.193 and 688 kg CO2eq/MWh) were obtained with the highest pressure (100 bar) and addition rate (50%), and the lowest moisture content (10%). Moreover, straw moisture has more
influence on the system environmental performance than its addition rate.
Keywords
Sugarcane biomass; Cogeneration; Energy performance; Life cycle assessment; Bioelectricity.
Hrčak ID:
224118
URI
Publication date:
31.12.2019.
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