Results 21 to 30 of about 5,930 (210)
Effect of New PVE Oil on the Performance of Air Conditioner with R32
Zhileng xuebao, 2017 The application range of R32, a new alternative refrigerant, is continually increasing. The development and use of a special refrigeration oil has become one of the key issues in R32 applications. This study investigated a new type of polyvinylether (PVE)
Jin Wufeng +3 more
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Energies, 2016 For zeotropic mixtures, the temperature varies during phase change, which is opposed to the isothermal phase change of pure fluids. The use of such mixtures as working fluids in organic Rankine cycle power plants enables a minimization of the mean ...
Jesper G. Andreasen +4 more
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R32-Al5W: A new stable high-temperature alloy
Results in PhysicsDue to the high melting point, exceptional mechanical properties, and remarkable corrosion resistance exhibited by Al5W, researchers have conducted extensive research on the structural characteristics of Al5W. To identify the lowest energy structures and
Xusheng Xie +5 more
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Zhileng xuebao, 2018 In the study, we focused on the vapor-liquid equilibrium property of the ternary system of R32+R161+R1234yf. The vapor–liquid equilibrium data was measured via a liquid-circulation apparatus at temperatures from 283.15 K to 323.15 K.
Yang Tao +3 more
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TiO2 nanolubricant: An approach for performance improvement in a domestic air conditioner
Results in Materials, 2022 TiO2 nanolubricant has been used in this experimental work to study the performance of domestic air conditioner. Air conditioner capacity was 1 ton and the original system has R22 refrigerant.
Md Imteaz Ahmed, Jamal Uddin Ahamed
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The viscosity of R32 and R125 at saturation [PDF]
International Journal of Thermophysics, 1993 This paper reports new measurements of the viscosity of R32 and R125, in both the liquid and the vapor phase, over the temperature range 220 to 343 K near the saturation line. The measurements in both liquid and vapor phases have been carried out with a vibrating-wire viscometer calibrated with respect to standard reference values of viscosity.
C. M. B. P. Oliveira, W. A. Wakeham
openaire +2 more sources
Performance comparison of the single-refrigerant cascade refrigerating system
Energy Reports, 2022 In the food refrigeration industry, the single-stage compression refrigerating system cannot meet the operating conditions of a high-pressure ratio when the evaporating temperature decreases.
Zhili Sun +11 more
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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
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Spillovers across House Price Convergence Clubs: Evidence from the Polish Housing Market
Real Estate Management and Valuation, 2020 The aim of this study is to assess whether significant spillovers exist among house price convergence clubs in the Polish housing market. This paper is a continuation of my previous research on house price convergence in Poland.
Tomal Mateusz
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Energies, 2020 Cryogen spray cooling (CSC) could be applied clinically for the laser therapy of Ota’s nevus, a dermal hyperplastic pigmented disease with a morbidity rate of 0.1–0.6% in the Asian population.
Jiameng Tian +3 more
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