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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >New waste heat district heating system with combined heat and power based on absorption heat exchange cycle in China
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New waste heat district heating system with combined heat and power based on absorption heat exchange cycle in China

机译：基于吸收热交换循环的新型热电联产余热集中供热系统

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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.
机译：开发了一种新的基于吸收热交换循环（DHAC）的热电联产废热集中供热系统，以通过废热回收提高热电联产（CHP）的供热能力，并提高现有热电联产的传热能力。新型吸收式热交换器（AHE）通过降低回水温度来改善侧区供热网络。从热力学和经济角度分析了DHAC系统和基于CHP（CDH）的常规区域供热系统。与CDH相比，DHAC的供暖能力提高了31％，现有的主要边区供热网络的传热能力提高了75％。结果表明，DHAC的热能效率比CHD高10.41％，产品热能货币成本降低36.6元/ GJ。 DHAC是提高CHP热利用率，降低区域供热成本的有效途径。

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