Refrigerant maldistribution in an evaporator of automotive air conditioning system: investigation and a design improvement by numerical simulations

被引：0
|
作者：
Stevanovic, V. [1 ]
Cucuz, S. [1 ]
Seeds, N. [1 ]
机构：
[1] Univ Belgrade, Fac Mech Engn, Belgrade 11001, Serbia
来源：
VEHICLE THERMAL MANAGEMENT SYSTEMS CONFERENCE PROCEEDINGS (VTMS 11) | 2013年
关键词：
2-PHASE FLOW DISTRIBUTION; ANNULAR-FLOW; HEADER;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Temperature stratification in the exit stream of cooled air from the plate and fin evaporator in automotive air conditioning occurs under low operating loads. Numerical simulations and analyses show that this malfunction is caused by the uneven distribution of the refrigerant liquid from the two-phase mixture in the header towards the evaporating channel. The applied numerical approach is validated for available experimental conditions. Refrigerant two-phase flows in a header of improved design are numerically investigated and a reduction of the temperature stratification is demonstrated.
引用
收藏
页码：103 / 112
页数：10
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