本文基于传热单元数法,建立了空调冷凝器的稳态分布参数模型.运用该模型,以大管径(φ7 mm)空调冷凝器性能为基准,进行小管径(φ5 mm)空调冷凝器流路设计.研究表明通过增加并联支路数目,适当缩短各支路长度等手段,可以使小管径冷凝器管内制冷剂压降增加过大的问题得到有效控制,在实现小管径冷凝器性能接近大管径冷凝器的同时,铜耗量可大大降低.
参考文献
| [1] | 杨世铭;陶文铨.传热学[M].北京:高等教育出版社,2006 |
| [2] | 王启川.热交换器设计[M].台北:五南出版社,2001 |
| [3] | 邓斌.空调换热器管路流程布置的数值模拟及实验研究[M].西安:西安交通大学,2005 |
| [4] | Akio Miyara;Kengo Nonaka;Mitsunori Taniguchi .Condensation heat transfer and flow pattern inside a herringbone-type micro-fin tube[J].International Journal of Refrigeration,2000(2):141-152. |
| [5] | D. Han;Kyu-Jung Lee .Experimental study on condensation heat transfer enhancement and pressure drop penalty factors in four microfin tubes[J].International Journal of Heat and Mass Transfer,2005(18):3804-3816. |
| [6] | 魏文建,丁国良,王凯建.A New Experimental Rig of Testing Flow Boiling Heat Transfer of Refrigerant and Lubricant Mixture[J].上海交通大学学报（英文版）,2004(04):62-67. |
| [7] | 胡海涛,丁国良,汪振策,魏文建,王凯建.R410A-油在φ7 mm水平直光管内流动沸腾阻力特性[J].上海交通大学学报,2007(03):370-375. |
| [8] | REFPROP7.1.National Institute of Standards and Technology[M].Gaithersburg MD,2003 |
| [9] | Nozu S;Katayama H;Nakata H;Honda H .Condensation of a Refrigerant CFCll in Horizontal Microfin Tubes (Proposal of a Correlation Equation for Frictional Pressure Gradient)[J].Experimental Thermal and Fluid Science,1998,18:82-96. |
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