Results 11 to 20 of about 5,930 (210)
Viscosity of binary refrigerant mixtures of R32 + R1234yf and R32 + R1243zf [PDF]
International Journal of Refrigeration, 2021 Abstract Viscosity measurements of six binary mixtures of R32+R1234yf and R32+R1243zf at different compositions were conducted in the homogenous liquid and gas phases with a vibrating-wire viscometer in the temperature range from (254 to 383) K and pressures from (1 to 8) MPa.
Xiaoxian Yang +2 more
exaly +4 more sources
Viscosity Measurements and Modeling for R32 and Binary Mixture of R32/R1234yf
Zhileng xuebao, 2018 Recently, the Paris Agreement which many nations agreed to limit greenhouse gas emissions, has come into effect. According to the agreement, many of the compounds currently used in the refrigeration sector are scheduled for phase out due to ozone ...
Meng Xianyang +4 more
doaj +3 more sources
Condensation and evaporation of R32/R1234ze(E) and R744/R32/R1234ze(E) flow in horizontal microfin tubes [PDF]
Condensation and evaporation of R32/R1234ze(E) and R744/R32/R1234ze(E) flow in horizontal microfin tubes, 2015 The heat transfer characteristics of the low global warming potential refrigerant mixture R744/R32/R1234ze(E) in a horizontal microfin tube were investigated in this study. The condensation heat transfer coefficient of R744 /R32/R1234ze(E) (9/29/62 mass %) is somewhat lower than that of other mixtures, e.g., R744/R32/R1234ze(E) (4/43/53 mass %) and R32/
Chieko Kondou +2 more
core +5 more sources
УРАВНЕНИЯ ДЛЯ РАСЧЕТА ВЯЗКОСТИ ХЛАДАГЕНТОВ R32 И R125
Holodilʹnaâ Tehnika i Tehnologiâ, 2015 Составлены уравнения для расчета вязкости альтернативных хладагентов R32 и R125 через переменные температуру и плотность. Коэффициенты уравнений определены методом наименьших квадратов по экспериментальным данным.
А. Бойчук
doaj +4 more sources
Study on the Method of Reducing Discharge Temperature of Refrigerant System with R32 [PDF]
Zhileng xuebao, 2012 This paper analyzed theoretically the change of refrigerant system after replacement of R410 with R32. Such replacement led to the increase of the discharge temperature of the system.
Qin Yan, Zhang Jianfei
doaj +5 more sources
Interface and Thermophysical Properties of R32 Refrigerant [PDF]
ACS OmegaDriven by the urgent demand for efficient cooling in microelectronics and advanced thermal management systems, difluoromethane (R32/CH2F2) has emerged as a promising candidate owing to its favorable thermophysical properties, including high heat transfer efficiency and low viscosity.
Adekoya-Olowofela A +2 more
europepmc +3 more sources
Development of Miscibility Improved Oil for R32
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers, 2018 R32 has been widely applied as an air-conditioner refrigerant. It is known that R32 is inferior to other refrigerants such as HFC and HFO in the miscibility with refrigeration oils. In addition, when R32 dissolves in refrigeration oils, the kinematic viscosity of the oils reduces remarkably.
Mizutani, Yuya +3 more
openaire +3 more sources
Influence of R32 Leak Detection Position on Indoor Safety [PDF]
Zhileng xuebaoIn this study, the leakage diffusion and concentration distribution characteristics of R32 refrigerants from a wall-mounted split air-conditioner indoor unit are analyzed by combining experiments and simulations under different leak locations ...
Zhang Wenqiang +4 more
doaj +4 more sources
Review of the Application of R32 on Air Conditioners and Heat Pump Systems
Zhileng xuebao, 2013 R32 has a number of advantages compared to R410A, such as zero ODP and less GWP value. It is now regarded as a possible substitute refrigerant for R410a.
Yang Shenyin +6 more
doaj +2 more sources
УРАВНЕНИЯ ДЛЯ РАСЧЕТА ТЕПЛОПРОВОДНОСТИ ХЛАДАГЕНТОВ R32 И R125
Holodilʹnaâ Tehnika i Tehnologiâ, 2014 Составлены уравнения для расчета теплопроводности альтернативных хладагентов R32 и R125 через переменные температуру и плотность. Коэффициенты уравнений определены методом наименьших квадратов по экспериментальным данным.
А.С. Бойчук
doaj +2 more sources