New waste heat district heating system with combined heat and power based on absorption heat exchange cycle in China

被引：66
|
作者：
Sun, Fangtian [1 ,2 ]
Fu, Lin [1 ]
Zhang, Shigang [1 ]
Sun, Jian [1 ]
机构：
[1] Tsinghua Univ, Bldg Energy Res Ctr, Beijing 100084, Peoples R China
[2] Beijing Univ Civil Engn & Architecture, Beijing 100044, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2012年 / 37卷
关键词：
Absorption heat exchanger (AHE); Combined heat and power (CHP); Waste heat recovery; Waste heat district heating; Exergoeconomic Analysis; EXERGOECONOMIC ANALYSIS; BASQUE COUNTRY; INDUSTRY; EXERGY; ENERGY; PLANT;
D O I：
10.1016/j.applthermaleng.2011.11.007
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A new waste heat district heating system with combined heat and power based on absorption heat exchange cycle (DHAC) was developed to increase the heating capacity of combined heat and power (CHP) through waste heat recovery, and enhance heat transmission capacity of the existing primary side district heating network through decreasing return water temperature by new type absorption heat exchanger (AHE). The DHAC system and a conventional district heating system based on CHP (CDH) were analyzed in terms of both thermodynamics and economics. Compared to CDH, the DHAC increased heating capacity by 31% and increased heat transmission capacity of the existing primary side district heating network by 75%. The results showed that the exergetic efficiency of DHAC was 10.41% higher and the product exergy monetary cost was 36.6/GJ less than a CHD. DHAC is an effective way to increase thermal utilization factor of CHP, and to reduce district heating cost. (C) 2011 Elsevier Ltd. All rights reserved.
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页码：136 / 144
页数：9
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