期刊
APPLIED THERMAL ENGINEERING
卷 53, 期 1, 页码 124-130出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2013.01.019
关键词
Evaporator; Microchannel; Laminated plate; Parallel flow; HFO-1234yf
资金
- Specialized Research Fund for the Doctoral Program of Higher Education [20100073120079]
- Shanghai Municipal Natural Science Foundation [11ZR1417700]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
The widely used evaporators with two different type were experimentally studied in psychrometric calorimeter room using HFO-1234yf as working fluids. The evaporators types are laminated plate and microchannel parallel flow (PF) type. The experimental results compared with R134a system show that cooling capacity has different features in laminated plate evaporator and microchannel PF evaporator under different refrigerant pressure at expansion valve inlet. In general, cooling capacity of laminated plate evaporator of HFO-1234yf is reduced up to 8.0%. But in microchannel PF evaporator, cooling capacity is comparable and/or larger than that of R134a up to 6.5%. The HFO-1234yf evaporator air off temperature deviation is larger than that of R134a evaporator. The air side pressure drop is very close for both evaporators and refrigerants. HFO-1234yf refrigerant side pressure drop is larger than that of R134a for both evaporators. (C) 2013 Elsevier Ltd. All rights reserved.
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