Effect of Ambient Temperature on Exergetic and Exergoeconomic Parameters of a CHP System
Publish place: Emerging Trends in Energy Conservation - ETEC
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ETEC02_039
تاریخ نمایه سازی: 28 آذر 1392
Abstract:
Exergy analysis permits the localization and counting of the inefficiency degree informing the most inefficient components in a system and exergoeconomic analysis methodologies combine economic and thermodynamic analysis by exerting the cost concept to exergy. This paper presents exergetic and exergoeconomic analysis of a Diesel engine based Combined Heat and Power (CHP) system that produces 277 kW of electricity and 282 kW of heat. For this purpose, the CHP system is first thermodynamically analyzed through energy and exergy. Then cost balances and auxiliary equations are applied to subsystems, hence, cost formation in the plant is observed. The exergoeconomic analysis is based on specific exergy costing (SPECO) method. Finally a parametric study is used to show effect of ambient temperature on important energy, exergy and exergoeconomic parameters of the CHP system. The results show that increasing ambient temperature decreases the exergetic efficiency of the system but it has a positive effect on the work output, heating power and cost of exergy destruction.
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Authors
Farzad Mohammadkhani
PhD Student, University of Tabriz
Shahram Khalilarya
Associate Professor, Urmia University
Iraj Mirzaee
Professor, Urmia University,
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