Results 1 to 10 of about 2,942 (221)

Experimental investigation on combustion characteristics of flammable refrigerant R290/R1234yf leakage from heat pump system for electric vehicles [PDF]

open access: yesRoyal 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]

open access: yesEntropy, 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]

open access: yesHeliyon
This 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]

open access: yesMaterials (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

A thermodynamic analysis of the Linde-Hampson cycle using low-GWP R1234yf-blends

open access: yesCase 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)

open access: yesTribology 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

open access: yesEnergies, 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

The Analysis of Next-Generation Refrigerants in Terms of Energy, Exergy, and LCCP Perspective

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2023
In this study, commonly used hydrofluorocarbon (HFC)-based refrigerants R404A and R410A, as well as hydrofluoroolefin (HFO)-based environmentally friendly next-generation refrigerant R1234yf with a low global warming potential (GWP), were analyzed in ...
Mehmet Onur Karaagac   +3 more
doaj   +1 more source

Feasibility of Using 2,3,3,3-Tetrafluoropropene (R1234yf) as a Solvent for Solid–Liquid Extraction of Biopharmaceuticals [PDF]

open access: yes, 2003
Tetrafluoropropene (R1234yf) is the most likely replacement for tetrafluoroethane (R134a), a widely used refrigerant, propellant and solvent, characterised by very high global warming potential.
Suberu, J   +4 more
core   +5 more sources

FILM –WISE CONDENSATION OF R1234yf AND R134a REFRIGERANTS ON FINNED TUBE WITH 32 FINS PER INCH

open access: yesWasit Journal of Engineering Sciences, 2022
Researchers have been motivating by the global warming challenge to develop alternatives substances to compounds that contribute to this problem. The refrigerant R134a (HFC134a) has been identified as one of the most environmentally damaging gases. As a
Jasim Khalid, Alaa R. Al-Badry
doaj   +1 more source

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