Refrigerant mass migration modeling and simulation for air conditioning systems

被引：24

作者：

Li, Bin ^{[1
]}

Peuker, Steffen ^{[2
]}

Hrnjak, Predrag S. ^{[1
]}

Alleyne, Andrew G. ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA

[2] Univ Alaska, Sch Engn, Anchorage, AK 99508 USA

来源：

APPLIED THERMAL ENGINEERING | 2011年 / 31卷 / 10期

关键词：

Refrigerant; Migration; Model; Cycling; Automotive; CYCLING LOSSES; START-UP; DOMESTIC REFRIGERATOR; MOVING-BOUNDARY; HEAT-EXCHANGERS; CHARGE; TRANSIENTS; TUBES;

D O I：

10.1016/j.applthermaleng.2011.02.022

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Refrigerant mass migration and redistribution are regarded as key factors affecting the cycling performance of air conditioning and refrigeration systems. A dynamic model of an R134a automotive air conditioning system is presented as an example in this paper to capture the refrigerant migration during compressor shut-down and start-up operations. Model validation against experimental data demonstrates the capabilities of the modeling approach in predicting the refrigerant mass migration among the components during shut-down, and the resulting refrigerant redistribution behaviors during start-up. These results represent the first refrigerant mass migration prediction in a validated dynamic system model. In addition, the potential of the dynamic modeling method in performance evaluation for possible product designs and control implementation for system cycling performance improvement is discussed in this paper. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1770 / 1779

页数：10

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