Results 151 to 160 of about 6,527 (197)
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Insight into the pyrolysis of R32 and R32/CO2 as working fluid for organic Rankine cycle
Journal of Analytical and Applied Pyrolysis, 2022Chuang Wu, Liyong Xin
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Thermal conductivity of R32 and its mixture with R134a
International Journal of Thermophysics, 1995The liquid thermal conductivity of R32 (CH2F2) and R134a (CF3CH2F) was measured in the range from 223 to 323 K and from 2 to 20 MPa by the transient hot-wire method. The thermal conductivity of the R32+R134a mixture was also measured in the same range by varying the mass fraction of R32.
S. T. Ro, J. Y. Kim, D. S. Kim
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Pool boiling performance of R32/R290 and R32/R1270 blends as potential alternatives to R410A
Applied Thermal EngineeringChien-Yeh Hsu +2 more
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Surface Tension and Liquid Viscosity of R32+R1234yf and R32+R1234ze
Journal of Chemical & Engineering Data, 2016The surface tension and liquid viscosity of two binary refrigerant mixtures 1,1,1,2-tetrafluoroethane (R32) (1) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) (2) and R32 (1) + trans-1,3,3,3-tetrafluoroprop-1-ene (R1234ze) (2) have been measured from 293 K to the critical point by using the surface light scattering (SLS) method.
Junwei Cui +3 more
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International Journal of Thermophysics, 2020
This study obtained the precise measurements of the vapor–liquid equilibrium properties for R32/R1234yf binary mixtures, which are the key components for the next-generation refrigerant mixtures. To obtain the data more rapidly and precisely, two recirculation-type vapor–liquid equilibrium property measurement apparatuses installed in different ...
T. Yamada +3 more
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This study obtained the precise measurements of the vapor–liquid equilibrium properties for R32/R1234yf binary mixtures, which are the key components for the next-generation refrigerant mixtures. To obtain the data more rapidly and precisely, two recirculation-type vapor–liquid equilibrium property measurement apparatuses installed in different ...
T. Yamada +3 more
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Solid–liquid equilibria for the CO2+N2O, CO2+R32, and N2O+R32 systems
Fluid Phase Equilibria, 2007Abstract Evaluating the solid–liquid equilibrium and the eutectic composition of a mixture is fundamental for the estimation of the lowest temperature at which the blend can be used as a refrigerant fluid. The study on the solid–liquid equilibrium for some selected systems was undertaken to fill the gap in the literature on the solid–liquid ...
Giovanni Di Nicola +3 more
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Investigation of Heat Pump Efficiency on Zeotropic Refrigerants R32/R134a and R32/R152a
Journal of Engineering Thermophysics, 2018Results of analysis of thermodynamic cycle efficiency with consideration of nonisothermal nature of phase transition indicate that when using the mixture of R32/R152a (30/70%) in the vapor compression heat pumps, the coefficient of performance is up to 4% higher in comparison with R32/R134a (30/70%).
N. N. Mezentseva, I. V. Mezentsev
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Thermodynamic properties of R32 + R134a and R125 + R32 mixtures in and beyond the critical region
International Journal of Refrigeration, 1998Abstract A parametric crossover equation of state for pure fluids is adapted to binary mixtures. This equation incorporates scaling laws asymptotically close to the critical point and is transformed into a regular classical expansion far away from the critical point.
S.B Kiselev, M.L Huber
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International Journal of Refrigeration, 1999
Abstract A practical representation for the transport coefficients of pure refrigerants R32, R125, R134a, and R125+R32 mixtures is presented which is valid in the vapor–liquid critical region. The crossover expressions for the transport coefficients incorporate scaling laws near the critical point and are transformed to regular background values far ...
S.B Kiselev, R.A Perkins, M.L Huber
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Abstract A practical representation for the transport coefficients of pure refrigerants R32, R125, R134a, and R125+R32 mixtures is presented which is valid in the vapor–liquid critical region. The crossover expressions for the transport coefficients incorporate scaling laws near the critical point and are transformed to regular background values far ...
S.B Kiselev, R.A Perkins, M.L Huber
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Advanced Materials Research, 2012
A general air-source heat pump water heater originally designed to work with R134a was reconstructed as experimental rig for performance studies on systems using different refrigerants including R32, R134a and the mixture of R32/R134a which mass ratio is 1:5.
De Feng Ding +4 more
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A general air-source heat pump water heater originally designed to work with R134a was reconstructed as experimental rig for performance studies on systems using different refrigerants including R32, R134a and the mixture of R32/R134a which mass ratio is 1:5.
De Feng Ding +4 more
openaire +1 more source