分布式冷热电联供系统变工况性能实验研究  

Experimental Study of the Off-design Condition Performance of a Distributed Type Cooling,Heating and Power Cogeneration System

作　　者：蒋润花[1] 黄斯珉[1] 尹辉斌[1] 杨敏林[1] 

机构地区：[1]东莞理工学院能源与化工系,广东东莞523808

出　　处：《热能动力工程》2016年第11期74-79,共6页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金青年科学基金资助项目(51506031);国家自然科学基金重点资助项目(51236008)

摘　　要：在分布式冷热电联供系统试验平台上,实验分析了系统各单元设备及系统随内燃机输出功率变化的变工况运行特性。该实验平台动力机采用柴油机,额定功率为50 k W,随着柴油机输出功率的增加,系统一次能源利用率和相对节能率先增加后减少,存在最大值。当柴油机输出功率为40 k W左右,一次能源利用率达到最大为76.0%,相对节能率最大达到29.5%;当负荷过低时,相对节能率为负值,系统相对于分产系统不节能。探讨了提高冷热电联供系统变工况性能的措施。On the test platform of distributed CCHP systems,off-design performance of units and system has been studied according to the output power of internal combustion engine. The power unit of experimental platform was diesel engine,and the rated power was 50 k W. With the output power of the diesel engine increasing,the primary energy rate( PER) and the relative energy saving ratio( RPESR) are the first to increase and then decrease. When output power is 40 k W,the PER is 76%,and RPESR is 29. 5%. When the output power was too low,the RPESR was negative. It means that the CCHP system was not energy saving relative to the production system. The measures to improve the performance of CCHP system have been discussed in this paper.

关 键 词：变工况 冷热电联供系统 溴化锂吸收式制冷机组 能源利用率 

分 类 号：TM611.3[电气工程—电力系统及自动化]