کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1734705 1016162 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combined production of sugar, ethanol and electricity: Thermoeconomic and environmental analysis and optimization
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Combined production of sugar, ethanol and electricity: Thermoeconomic and environmental analysis and optimization
چکیده انگلیسی

Many works have shown the potential of the Brazilian sugarcane industry as an electricity supplier. However, few studies have studied how this potential could be achieved without jeopardizing the production of sugar and ethanol. Also, the impact of modifications in the cogeneration plant on the costs of production of sugar and ethanol has not been evaluated. This paper presents an approach to the problem of exergy optimization of cogeneration systems in sugarcane mills. A general model to the sugar and ethanol production processes is developed based on data supplied by a real plant, and an exergy analysis is performed. A discussion is made about the variables that most affect the performance of the processes. Then, a procedure is presented to evaluate modifications in the cogeneration system and in the process, and their impact on the production costs of sugar, ethanol and electricity. Furthermore, a discussion on the renewability of processes is made based on an exergy index of renewability. As a general conclusion, besides adding a new revenue to the mill, the generation of excess electricity improves the exergo-environmental performance of the mill as a whole.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 36, Issue 6, June 2011, Pages 3704–3715
نویسندگان
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