摘要
以空气源热泵逆循环热气除霜实验时测得的各时刻室外换热器翅片管表面温度分布参数为基础,建立了室外换热器热气除霜动态模型.通过模型求解可以全面动态观测空气源热泵除霜时室外换热器表面滞留水蒸发质量、蒸发耗热量及翅片管干热换热特性.采用实验参数与计算机模拟相结合的建模方法,不必考虑除霜时翅片管内部的热交换,简化了计算,同时保证了模型的可靠性与精度.
This paper developed a dynamic hot gas defrosting model of air source heat pump. The model is based on distributed parameters of out side heat exchanger fin-tube surface temperature which was measured in a hot gas defrosting experimental process. Through solving the model, the defrosting characteristics of outside heat exchanger surface water vaporizing, the mass of vaporized water and the heat quantity of vaporizing and dry heating can be obtained. The method of combination of experimental parameters with computer simulation need not consider the heat exchange inside the fin-tube, which simplifies the calculation and ensures the reliability and precision of the model.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2008年第6期989-992,共4页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金(50606007)资助项目
关键词
空气源热泵
除霜
模型
实验参数
air source heat pump
defrosting
model
experimental parameters
