Experimental validation of void fraction models for R410A air conditioners

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• 作者：Xiaokui Ma ; Guoliang Ding ; Ping Zhang ; Weizhe Han ; Shinichi Kasahara ; Takahiro Yamaguchi
• 关键词：Air conditioning ; R410A ; Refrigerant charge ; Modelling ; Void
• 刊名：International Journal of Refrigeration
• 出版年：2009
• 出版时间：August 2009
• 年：2009
• 卷：32
• 期：5
• 页码：780-790
• 全文大小：735 K

文摘

This paper presents the combined void fraction models on the basis of flow pattern to choose suitable models for calculating the two-phase refrigerant mass of R410A air conditioners, and the model is validated experimentally. The existing single void fraction models are also evaluated experimentally. The Taitel–Dukler flow pattern map is recommended to use in the combined void fraction models. The results presented herein show that the calculated refrigerant mass using the combined void fraction models agrees relatively better with the measured refrigerant mass than that of the single void fraction models. T–B model (for intermittent flow) and Premoli model (for annular flow) are recommended for calculating the two-phase refrigerant mass in evaporator, and T–B model (for intermittent flow) and Harms model (for annular flow) are also indicated for calculating the two-phase refrigerant mass in condenser.