年間 8 号発行
ISSN 印刷: 2150-3621
ISSN オンライン: 2150-363X
Indexed in
EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF HEAT REGENERATION PROCESS EFFICIENCY IN A HEAT PUMP WITH A MIXTURE OF REFRIGERANTS
要約
This article presents the results of investigations of new heat pump refrigerants that provide a high-efficiency working cycle of heat pump. These refrigerants are mixtures of a few cooling agents, and they are more environmentally friendly than the traditional ones. The mixture components used are C3F8 and SF6 (R218/R846). The specific differences in these refrigerants used in the heat pump thermodynamic cycle are shown, and their benefits are presented. The influence of the recuperative heat exchanger characteristics on the efficiency of heat pump operation was investigated by numerical and physical modeling. Investigations were carried out on the experimental facility of the Department of Theoretical Basics of Heat Engineering at the National Research University "Moscow Power Engineering Institute". The experimental facility was modernized by replacing the tubular (double-pipe) heat exchanger by a plate heat exchanger. This upgrading was made to decrease the flow resistance and increase the heating temperature at the compressor inlet for the refrigerant mixtures described above. Thermal testing of the plate heat exchanger was conducted. The efficiency of the plate heat exchanger as compared to the tubular one is shown.
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Yunus Mohammed, Oreijah Mowffaq M, Performance characteristics of a heat pump using renewable transcritical CO2 refrigerant for heating water, International Journal of Low-Carbon Technologies, 16, 3, 2021. Crossref
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Sokolov V Y, Sokolova T Y, Installation of absorption refrigerating machines for the needs of conditioning of the Armada Mall, IOP Conference Series: Materials Science and Engineering, 1089, 1, 2021. Crossref