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Lubricant Effect on Performance of R134a MAC Microchannel Evaporators
Technical Paper
2014-01-0692
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents an experimental study of lubricant effect on the performance of microchannel evaporators in a typical MAC system. R134a is used as the refrigerant with PAG46 lubricant. The increase of oil circulation rate elevates the pressure drop of the evaporator. The specific enthalpy change in evaporator decreases with increasing oil circulation rate, while refrigerant distribution appears to be more uniform as indicated by infrared images of the evaporator surface temperatures. Thus mass flow rate increases.
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Citation
Li, H. and Hrnjak, P., "Lubricant Effect on Performance of R134a MAC Microchannel Evaporators," SAE Technical Paper 2014-01-0692, 2014, https://doi.org/10.4271/2014-01-0692.Also In
References
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