International Journal of Refrigeration 2009年第5期刊出马小魁所写的空调器中空泡系数模型的研究论文，以及浦晖所写的换热器中生物污垢的影响的研究论文。本研究室今年已累积在International Journal of Refrigeration上发表了5篇论文。本期二篇论文的题目与摘要如下：

[1] Xiaokui Ma, Guoliang Ding, Ping Zhang, Weizhe Hana, Shinichi Kasahara, Takahiro Yamaguchi. Experimental validation of void fraction models for R410A air conditioners. International Journal of Refrigeration, 2009, 32 (5): 780-790

ABSTRACT：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.

[2] Hui Pu, Guo-liang Ding, Xiao-kui Ma, Hai-tao Hu, Yi-feng Gao. Effects of biofouling on air-side heat transfer and pressure drop for finned tube heat exchangers.  International Journal of Refrigeration, 2009, 32 (5): 1032-1040

ABSTRACT：Experimental investigations on the effects of biofouling on air-side heat transfer and pressure drop for three biofouled finned tube heat exchangers and one clean finned tube heat exchanger were performed. Artificial accelerated method of microorganism growth on the fin surface was used for simulating the biofouled finned tube heat exchangers. Experimental results indicate that the effects of biofouling on the air-side heat transfer coefficient decreases 7.2% at 2.0 m/s when the biofouled area ratio is 10%, while it decreases 15.9% at 2.0 m/s when the biofouled area ratio is 60%, and biofouling causes a 21.8%~41.3% increase in pressure drop when the air velocity is between 0.5 and 2.0 m/s. The increase of inlet air velocity is helpful to improve the long-term performance of finned tube heat exchanger. Biofouling makes the hydrophilic coating failure, and the condensation water easily converges on the fin surface where biofouling grows.