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Oct 22, 2024 , The main purpose of this study was to investigate the possibilities of using R134a as a working fluid to replace R22 for vapor compression heat pumps.
Oct 20, 2024 , Many researchers have investigated the performance variations of heat pump systems, focusing on only one effect of change in either charge amount or composition ...
May 10, 2024 , This study investigates six composition determination methods, which are all non-invasive, five of which can be conducted during system operation.
Oct 12, 2024 , The study investigated the characteristics of different natural refrigerants and their mixtures in a residential heat pump with low refrigerant charge. Three ...
Missing: impact | Show results with:impact
Jun 5, 2024 , When the cooling mode changes from refrigerant cooling to liquid cooling under 2C charging, the heat transfer coefficient reduces about 73.6%, and the battery ...
Feb 10, 2024 , Refrigerant R22 has approximately 55% higher refrigerating capacity and pressure levels in compari- son to R12. The significantly higher dis- charge gas ...
Jun 5, 2024 , The choice of refrigerant directly affects cooling performance, and research on vehicle air conditioning (AC) systems can indirectly guide the BTM. R1234yf and ...
Jul 24, 2024 , This study examines the performance of several alternative refrigerants, including R32, R134A, R410A, R22 and R290. To examine the performance of R290, ...
Mar 1, 2024 , The results indicated that the heating capacity of R1234yf systems with IHX averaged a 13.9% decrease compared with R134a systems, but the COP of the system ...
Sep 12, 2024 , From the comprehensive review, it was found that R1234yf has the most potential to be a suitable low-flammable replacement for R134a for domestic refrigeration ...