摘要
本文根据理想气体状态方程和Clapeyron-Clausius方程推导出了计算用于霜密度变化的结霜量变化率的公式。计算时同时考虑了结霜的密度和厚度随时间的变化,得到了不同工况下用于霜密度变化的结霜量变化率、用于霜厚度变化的结霜量变化率随时间的变化规律以及霜的密度和厚度随时间的变化,为采取有效的除霜控制方法提供了依据。
In the paper, the frost accumulation rate model used to evaluate frost density variation for airside heat finned-tube exchanger under frosting was derived from ideal gas state equation and Clapeyron-Clausius equation. The change of frost thickness and density with time was considered in the model. Frost accumulation rate used to calculate the change of frost density and frost thickness, as well as the change of frost density and thickness with time, was obtained by use of the model. These provide basis to take effective measures for defrosting control for air source heat pump.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2003年第6期1040-1042,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.50278021)
关键词
翅片管换热器
结霜
霜密度
霜厚度
finned-tube heat exchanger
frosting
frost density
frost thickness
