Results 91 to 100 of about 368 (107)
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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
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Hazard evaluation of R32/R1234ze(E) cloud explosion
International Journal of Refrigeration, 2020Abstract This paper is aimed at evaluating characteristics of R32/R1234ze(E) cloud explosion. The flame morphologies and explosion pressure are obtained experimentally and the laminar burning velocity is analyzed thermally and chemically. The results indicated that with the increase of equivalence ratio, the limiting oxygen content of xE=10 ...
Qixuan Liu +5 more
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International Journal of Thermophysics, 2008
The isochoric heat capacity (cv) of difluoromethane (R32) and a mixture of 51.11 mass% R32 + 48.89 mass% pentafluoroethane (R125) was measured at temperatures from 268 K to 328 K and at pressures up to 30 MPa. The reported density measurements are in the single-phase region and cover a range of ρ > 800 kg · m−3.
A. Matsuguchi, K. Yamaya, N. Kagawa
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The isochoric heat capacity (cv) of difluoromethane (R32) and a mixture of 51.11 mass% R32 + 48.89 mass% pentafluoroethane (R125) was measured at temperatures from 268 K to 328 K and at pressures up to 30 MPa. The reported density measurements are in the single-phase region and cover a range of ρ > 800 kg · m−3.
A. Matsuguchi, K. Yamaya, N. Kagawa
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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ТЕРМОДИНАМИЧЕСКИЕ СВОЙСТВА АЛЬТЕРНАТИВНОГО ХЛАДАГЕНТА R32
Industrial Gases, 2015Представлены значения термодинамических свойств (плотности, энтальпии и энтропии) альтернативного хладагента дифторметана (R32) на линии насыщения в интервале температур 200 – 345 К и в однофазной области при температурах 200 – 400 К и давлениях 0,1 – 10 МПа.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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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, 2022Liyong Xin +5 more
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R32 Soğutkanlı bir ısı pompasının termodinamik analizi
2019Refrigerants with a high global warming effect are limited in their use on an international scale, taking into consideration environmental criteria. Like the F-gas regulation implemented by the European Union, a regulation has been drafted in our country that restricts the use of F-Gas.
OZGUR, Arif Emre, MANIR, Melih
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