摘要
利用稳态分布参数法建立了小型空气源热泵热水器模型,并用MATLAB语言编制仿真程序,从膨胀阀节流特性出发,在热源侧温度不断升高的过程中,对配用不同孔径膨胀阀的热水器进行模拟研究。通过对比分析,指出热泵系统的工作性能受膨胀阀自身的节流特性所制约,当蒸发器负荷过大时,系统制热效率并不理想,同时提出了解决该问题的一些建议。
By programming with Matlab software,a air source heat pump water heater model was built using the steady-statedistributed parameter.When the atmosphere temperature keeps rising,carrying Study on throttling characteristic of the systemswhose thermostatic expansions have different diameter.The result shows that the water heater＇s performance is not actuallyproportional to the evaporator load,and the analysis points that the performance of the heat pump is restricted greatly bythermostatic expansion.Some suggestions are also been presented to solve this problem.
出处
《制冷与空调（四川）》
2011年第5期505-509,共5页
Refrigeration and Air Conditioning
关键词
热泵热水器
热力膨胀阀
节流特性
模拟仿真
Heat pump water heater
Thermostatic expansion
Throttling characteristic
Simulation
