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Performance comparison between bypass cycle and injection cycle for sub-cooling methods in multi-split variable refrigerant flow (VRF) system in hot seasons.

Author(s) : MIN B., JANG S., LEE T., et al.

Type of article: Article, IJR article

Summary

In this study, the performance of a multi-split VRF system using the bypass cycle and injection cycle is evaluated using the numerical simulation as a possible sub-cooling method to prevent flash gas generation in liquid pipelines. The simulation for the multi-split VRF system is developed by considering the applications of the bypass cycle and injection cycle, and is validated with experimental data. The bypass cycle and injection cycle in the multi-split VRF system yield improvements in their cooling capacities of the order of 3.22% and 13.43%, respectively, and energy efficient ratio (EER) of the order of 1.98% and 1.72%, respectively. The input power of the injection cycle is reduced by up to 4.45% when the performance of the multi-split VRF systems with bypass cycle and injection cycle is compared under the same cooling capacity conditions.

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Pages: 202-213

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Details

  • Original title: Performance comparison between bypass cycle and injection cycle for sub-cooling methods in multi-split variable refrigerant flow (VRF) system in hot seasons.
  • Record ID : 30026978
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 107
  • Publication date: 2019/11
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.07.010

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