Experimental investigation on combustion characteristics of flammable refrigerant R290/R1234yf leakage from heat pump system for electric vehicles [PDF]
Royal Society Open Science, 2020 Concerning the issues regarding driving mileage reduction for electric vehicles (EVs) in cold climates, a heat pump system with low global warming potential refrigerant R290/R1234yf is employed as one of the promising solutions. Different from the widely
Kang Li +7 more
doaj +2 more sources
Optimization Design and Performance Evaluation of R1234yf Ejectors for Ejector-Based Refrigeration Systems [PDF]
Entropy, 2022 With the increasingly serious energy and environmental problems, the R1234yf ejector refrigeration system (ERS) shows great development potential in the refrigeration industry due to its simplicity, low maintenance costs and environmentally friendly ...
Meihong Yu +3 more
doaj +2 more sources
Experimental study on the impact of indoor unit airflow velocity on the performance of an automotive heat pump system with a suction line heat exchanger [PDF]
HeliyonThis study aimed to investigate the effect of changing the indoor unit air flow rate on the performance of an automobile heat pump with a suction line heat exchanger.
Alpaslan Alkan
doaj +2 more sources
Thermal Energy Storage of R1234yf, R1234ze, R134a and R32/MOF-74 Nanofluids: A Molecular Simulation Study. [PDF]
Materials (Basel), 2018 Thermal energy storage can be carried out by working fluid adsorbing and desorbing in porous materials. In this paper, the energy storage properties of four refrigerants, R1234yf, R1234ze, R134a and R32, with M-metal organic framework (MOF)-74 (M = Zn ...
Hu J, Liu C, Liu L, Li Q.
europepmc +3 more sources
Performance Characteristics of Automobile Air Conditioning Using the R134a/R1234yf Mixture. [PDF]
Entropy (Basel), 2019 In this study, the energy and exergy of an automobile refrigeration system using R134a and R134a/R1234yf were analyzed experimentally with respect to outdoor air temperature and compressor speed. As outdoor air temperature increased from 32.5 °C to 37.5 °C, the coefficient of performance (COP) and total exergy destruction rate of the refrigeration ...
Shin Y, Kim T, Lee A, Cho H.
europepmc +4 more sources
Review and Potential Analysis of R1234yf Heat Pump Technology
Zhileng xuebao, 2020 Electric vehicles do not have sufficient engine waste heat to meet heating demands in winter. As such, heat pump technology has become a research hotspot to achieve a higher efficiency than electric resistance heat.
Liu Yusheng +3 more
doaj +1 more source
Study on Leakage Diffusion of R1234yf Vehicle Air Conditioner
Zhileng xuebao, 2022 The thermal management system of electric vehicles is different from that of traditional passenger vehicles. For electric vehicles with a heat pump system and liquid cooling battery, the refrigerant charge is increased by 400–800 g compared with ...
Wang Linlin, Yang Zhao, Wang Dan
doaj +1 more source
A thermodynamic analysis of the Linde-Hampson cycle using low-GWP R1234yf-blends
Case Studies in Thermal Engineering, 2023 The Linde-Hampson cycle (LHC) exhibits a promising future as a cooling method to achieve cooling temperatures below −40 °C, and are highly desirable in commercial refrigeration.
Yanbin Qin +3 more
doaj +1 more source
Effect of HFO Refrigerants on Lubrication Characteristics (Part 1)
Tribology Online, 2023 Focusing on hydrofluoroolefin (HFO) refrigerant, which is expected to be applied as a green refrigerant, the effect of R1234yf on the tribological characteristics was compared with hydrofluorocarbon (HFC) refrigerant R32.
Yuji Shitara, Shigeyuki Mori
doaj +1 more source
Comparative Investigation on the Thermophysical Property and System Performance of R1234yf
Energies, 2023 In this paper, an experimental study of R1234yf replacing R22 in window air conditioning was carried out. The optimum types of capillary tubes and the charge amount were obtained, and the system performance of the window air conditioning charged with ...
Gailian Li +3 more
doaj +1 more source