| 翅片管换热器结霜时霜密度和厚度的变化 |
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| 引用本文： | 姚杨,姜益强,马最良.翅片管换热器结霜时霜密度和厚度的变化[J].工程热物理学报,2003,24(6):1040-1042. |
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| 作者姓名： | 姚杨 姜益强 马最良 |
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| 作者单位： | 哈尔滨工业大学,黑龙江,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金(No.50278021) |
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| 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。
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| 关 键 词： | 翅片管换热器 结霜 霜密度 霜厚度 |
| 文章编号： | 0253-231X(2003)06-1040-03 |
| 修稿时间： | 2002年12月6日 |
CHANGE OF FROST DENSITY AND THICKNESS FOR FINNED- TUBE HEAT EXCHANGER UNDER FROSTING |
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| YAO Yang JIANG Yi-Qiang MA Zui-Liang.CHANGE OF FROST DENSITY AND THICKNESS FOR FINNED- TUBE HEAT EXCHANGER UNDER FROSTING[J].Journal of Engineering Thermophysics,2003,24(6):1040-1042. |
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| Authors: | YAO Yang JIANG Yi-Qiang MA Zui-Liang |
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| Abstract: | 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. |
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| Keywords: | finned-tube heat exchanger frosting frost density frost thickness |
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