燃气热泵(GHP)系统制冷工况的数值模拟与分析  

SIMULATION OF NATURAL GAS ENGINE-DRIVEN PUMP HEAT (GHP) IN COOLING CONDITIONS

作　　者：李玉[1] 黄冲[1] 何世辉[1] 韩汉平[1] 冯自平[1] 

机构地区：[1]中科院广州能源研究所

出　　处：《工程热物理学报》2008年第3期447-450,共4页Journal of Engineering Thermophysics

基　　金：科技部863计划项目资助(No．2006AA05Z238)

摘　　要：通过建立天然气发动机驱动热泵系统的数学模型,研究了制冷工况下,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 cooling conditions are analyzed by changing the advance ignition angle, excess air ratio, compression ratio, 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：燃气热泵 点火提前角 过量空气系数 压缩比 数值模拟 

分 类 号：TB43[一般工业技术] TU995[建筑科学—供热、供燃气、通风及空调工程]