流体机械

2008, No.431(05) 63-67

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燃气热泵(GHP)系统热泵运行时的数值模拟研究
Study on Simulation of Natural Gas Engine-driven Heat Pump in Heating Conditions

李玉;黄冲;何世辉;冯自平;
LI Yu,HUANG Chong,HE Shi-hui,FENG Zi-ping(Chinese Academy of Sciences Guangzhou Institute of Energy Conversion,Guangzhou 510640,China)

摘要(Abstract):

通过建立天然气发动机驱动热泵系统的数学模型,研究了供热工况下,点火提前角、压缩比、过量空气系数、发动机转速等参数对天然气发动机及整个热泵系统运行性能的影响,为天然气发动机的优化设计提供一定的理论依据,并且预测了燃气热泵的性能,证明了该系统具有较好的部分负荷特性。
Through establishing the numerical model of natural gas engine-driven heat pump system,the runtime characteristics of natural gas engine and heat pump in heating conditions are analyzed by changing the advance ignition angle,excess air ratio,compression ratio,and engine speed.It can provide the theory bases for the optimization of natural gas engine,and forecast the entire performance of the gas engine-driven heat pump system.It is indicated that GHP has good partial load characteristic.

关键词(KeyWords): 燃气热泵;点火提前角;过量空气系数;压缩比;数值模拟
GHP;advance ignition angle;excess air ratio;compression ratio;simulation

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基金项目(Foundation): 科技部863计划项目(2006AA052238)

作者(Author): 李玉;黄冲;何世辉;冯自平;
LI Yu,HUANG Chong,HE Shi-hui,FENG Zi-ping(Chinese Academy of Sciences Guangzhou Institute of Energy Conversion,Guangzhou 510640,China)

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