A correlation model of thermal entrainment factor for air curtain in a vertical open display cabinet

被引：28
|
作者：
Yu, Ke-zhi [1 ,2 ]
Ding, Guo-liang [1 ]
Chen, Tian-ji [2 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China
[2] Shanghai Ocean Univ, Dept Refrigerat Engn, Shanghai 201306, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 14-15期
关键词：
Air curtain; Computational fluid dynamics; Correlation model; Display cabinet; Thermal entrainment factor; 2-FLUID MODEL; SIMULATION; PERFORMANCE; EVAPORATORS; DESIGN;
D O I：
10.1016/j.applthermaleng.2009.02.016
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Thermal entrainment factor (TEF) is an important parameter to describe the cold preservation performance of a display cabinet. In order to calculate the TEF of a display cabinet rapidly and accurately, the method of establishing a correlation model based on computational fluid dynamics (CFD) simulation results is presented and the correlation model of TEF for typical single and double air curtain in a vertical open display cabinet is developed in this paper. The TEF of display cabinet predicted by the correlation model gives a maximum deviation of -9.4% and a mean deviation of -0.1% compared with the published experimental data. In addition, the correlation model can be used to calculate the air curtain return temperature, showing a maximum deviation of 0.9 degrees C and an average deviation of 0.1 degrees C compared with the published experimental data. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2904 / 2913
页数：10
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