Exergy analysis of two geothermal district heating systems for building applications

被引：50
|
作者：
Ozgener, Leyla [1 ]
Hepbasli, Arif
Dincer, Ibrahim
机构：
[1] Celal Bayar Univ, Dept Engn Mech, TR-45140 Muradiye, Manisa, Turkey
[2] Ege Univ, Fac Engn, Dept Mech Engn, TR-35100 Izmir, Turkey
[3] UOIT, Fac Engn & Appl Sci, N Oshawa, ON L1H 7K4, Canada
来源：
ENERGY CONVERSION AND MANAGEMENT | 2007年 / 48卷 / 04期
关键词：
geothermal energy; building; energy; exergy; efficiency; renewable energy;
D O I：
10.1016/j.enconman.2006.10.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study evaluates the exergetic performance of two local Turkish geothermal district heating systems through exergy analysis. The exergy destructions in these geothermal district heating systems are quantified and illustrated using exergy flow diagrams for a reference temperature of 1 degrees C using the 2003 and 2004 actual seasonal heating data. The results indicate that the exergy destructions in these systems particularly occur due to losses in pump, heat exchangers, pipelines, and the reinjection of thermal water. Exergy efficiencies of the two systems are investigated for the system performance analysis and improvement and are determined to be 42.89% and 59.58%, respectively. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1185 / 1192
页数：8
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