目前,针对单工质或近共沸工质的板式蒸发器研究已有开展,但对于非共沸工质的尚未见报道;本文结合实验数据,欲将已有实验关联式推广到非共沸混合工质,经过比较发现,Hsieh的应用近共沸工质R410a的换热系数关联式能很好的适应大温度滑移的混合工质,另外本文对摩擦压降关联式的系数经过适当的修正后也能应用于该工质.
参考文献
| [1] | 何国庚;包相继;郑泠 .板式换热器在制冷技术中的应用与发展[J].化工装备技术,1996,17(06):46-50. |
| [2] | 何雪冰,刘宪英.热泵机组用板式冷凝器及蒸发器的选择计算[J].暖通空调,2001(06):58-61. |
| [3] | Y. -Y. Yan;T. -F. Lin .Evaporation heat transfer and pressure drop of refrigerant R-134a in a plate heat exchanger[J].Journal of heat transfer: Transactions of the ASME,1999(1):118-127. |
| [4] | Hsieh Y Y;Chiang L J;Lin T F .Subcooled Flow Boiling Heat Transfer of R-134a and the Associated Bubble Characteristics in a Vertical Plate Heat Exchanger[J].International Journal of Heat and Mass Transfer,2002,45:1791-1806. |
| [5] | Y. Y. Hsieh;T. F. Lin .Saturated flow boiling heat transfer and pressure drop of refrigerant R-410A in a vertical plate heat exchanger[J].International Journal of Heat and Mass Transfer,2002(5):1033-1044. |
| [6] | P. C. Zhao;L. Zhao;G. L. Ding;C. L. Zhang .Experimental research on geothermal heat pump system with non-azeotropic working fluids[J].Applied thermal engineering: Design, processes, equipment, economics,2002(15):1749-1761. |
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