Results 131 to 140 of about 1,212 (176)
Some of the next articles are maybe not open access.
Research on flammability of R290/R134a, R600a/R134a and R600a/R290 refrigerant mixtures
International Journal of Refrigeration, 2022Guogeng He, Cai Dehua, Zian Hao
exaly +2 more sources
International Journal of Refrigeration, 2023
Guogeng He, Sai Zhou, Jialiang Hua
exaly +2 more sources
Guogeng He, Sai Zhou, Jialiang Hua
exaly +2 more sources
Removal of R134a from air/R134a mixture based on cryogenic condensation method
2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA), 2021The emission of greenhouse gases is aggravating the global warming. Nowadays, R134a is widely used in refrigeration engineering, and its globe warming potential (GWP) is relatively high (1301). So, it is imperative to recover the R134a in refrigerating devices, and prevent it from being released to the atmosphere.
Boshi Shao +5 more
openaire +1 more source
Fluid Phase Equilibria, 1992
Abstract Thermal conductivity measurements are reported for the alternative refrigerant 1,1,1,2-tetrafluoroethane (R134a). These measurements were made over the temperature range from 200 to 390 K at pressures to 70 MPa. Data are reported for the liquid, vapor, and supercritical fluid phases.
A. Laesecke +2 more
openaire +1 more source
Abstract Thermal conductivity measurements are reported for the alternative refrigerant 1,1,1,2-tetrafluoroethane (R134a). These measurements were made over the temperature range from 200 to 390 K at pressures to 70 MPa. Data are reported for the liquid, vapor, and supercritical fluid phases.
A. Laesecke +2 more
openaire +1 more source
International Journal of Refrigeration, 2020
Abstract This paper presents the results of an experimental investigation on pressure drop characteristics for R134a and R134a-lubricant mixtures in multiport flat tubes (MPFT). An experimental facility has been set up, carefully validated and used to determine the pressure drop value in the two-phase flow regime inside extruded MPFT with hydraulic ...
Paul Knipper +4 more
openaire +1 more source
Abstract This paper presents the results of an experimental investigation on pressure drop characteristics for R134a and R134a-lubricant mixtures in multiport flat tubes (MPFT). An experimental facility has been set up, carefully validated and used to determine the pressure drop value in the two-phase flow regime inside extruded MPFT with hydraulic ...
Paul Knipper +4 more
openaire +1 more source
Thermophysical properties of refrigerant R134a
International Journal of Refrigeration, 1992Abstract Experimental results of measurements of the thermodynamic and transport properties of refrigerant R134a are presented for the temperature range 240–400 K and pressures up to 89 bar. The thermal properties of the saturated refrigerant were also determined. The results from this study showed that the dependence of viscosity on temperature near
G.K Lavrenchenko +3 more
openaire +1 more source
Experimental densities for compressed R134a
International Journal of Refrigeration, 1992Abstract This paper reports densities of compressed R134a (1,1,1,2-tetrafluoroethane) determined by using a contiuously weighed pycnometer at 20 K intervals between 180 and 380 K at pressures from slightly greater than the vapour pressure to 70 MPa. The results are accurate to within ±0.1%. Saturated liquid densities derived by extrapolation from the
H Hou, J.C Holste, B.E Gammon, K.N Marsh
openaire +1 more source
International Journal of Heat and Mass Transfer, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Suresh, M., Mani, A.
openaire +1 more source
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Suresh, M., Mani, A.
openaire +1 more source
Microemulsion Formation in 1,1,1,2-Tetrafluoroethane (R134a)
Langmuir, 2003Water solubilization by anionic perfluorinated surfactants has been examined in the condensed phase of the hydrofluorocarbon (HFC) gas 1,1,1,2-tetrafluoroethane (R134a) in the temperature range 15-55 °C and to pressures of 500 bar. The surfactant di(1H,1H,5H-octafluoro-n-pentyl) sodium sulfosuccinate (di-HCF4) forms stable water-in-R134a microemulsions
David C. Steytler +4 more
openaire +1 more source
KSME International Journal, 2004
This paper reports an experimental study on flow boiling of pure refrigerants R134a and R123 and their mixtures in a uniformly heated horizontal tube. The flow pattern was observed through tubular sight glasses with an internal diameter of 10 mm located at the inlet and outlet of the test section.
Tae Woo Lim, Jun Hyo Kim
openaire +1 more source
This paper reports an experimental study on flow boiling of pure refrigerants R134a and R123 and their mixtures in a uniformly heated horizontal tube. The flow pattern was observed through tubular sight glasses with an internal diameter of 10 mm located at the inlet and outlet of the test section.
Tae Woo Lim, Jun Hyo Kim
openaire +1 more source