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| A Flow Characteristics Model of Electronic Expansion Valve Considering Choking Characteristics |
| CHEN Liang,CHEN Jiangping,LIU Jinghui,CHEN Zhijiu |
| (Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract The choked refrigerant flow characteristics of electronic expansion valve (EEV) was analyzed. A metastability coefficient was proposed by employing the homogeneous equilibrium flow model and frozen flow model to depict the flow characteristics of EEVs, and the coefficient was applied to build a mass flow model of EEV. The modeling results were compared with the experimental data and the deviation of the predicted metastability coefficient by the model is in the range of -8.59% to 7.56%.
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Received: 07 January 2009
Published: 29 January 2010
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