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Injector refrigerant circulation for enhancing heat efficiency of air coolers with uneven heat load distribution.
Number: 0432
Author(s) : RADCHENKO M., RADCHENKO A., MIKIELEWICZ D., TKACHENKO V., ZIELIKOV O.
Summary
A concept of incomplete refrigerant evaporation with overfilling air coolers of air conditioning systems that leads to excluding a dry-out of inner surface of air coils and is realized through liquid refrigerant recirculation by injector (jet pump) is developed for air coolers operating at uneven heat load distribution as alternative approach of the heat load modulation through air velocity profile equalizing. A realization of proposed concept allows to solve the problem of uneven refrigerant distribution in manifolds of heat exchangers (including microchannel heat exchangers) and between refrigerant channels (coils, tubes, microchannel plates) and by uneven outside air heat loads or varying heat loading during operation according to actual climatic conditions due to excluding the final stage of refrigerant evaporation with extremely low intensity of heat transfer. It is quite effective for conventional heat exchangers as well as for microchannel ones.
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Pages: 8
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Details
- Original title: Injector refrigerant circulation for enhancing heat efficiency of air coolers with uneven heat load distribution.
- Record ID : 30028226
- Languages: English
- Subject: Technology
- Source: 10th IIR Conference on Compressors and Refrigerants.
- Publication date: 2021/01/13
- DOI: http://dx.doi.org/10.18462/iir.compr.2020.0432
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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Themes:
Comfort air conditioning;
Containment, refrigerant charge reduction;
Refrigerant circulation: piping, control, automation, safety;
Evaporators, condensers and other heat exchangers - Keywords: Air cooler; Evaporation; Refrigerant; Refrigerant charge; Variable volume; Recirculation; Design; Heat exchanger; Microchannel; Air conditioner
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