WebThe accepted value of heat capacity for R-1234ze (E) was equal to 0.766 kJ/ (kg ·K ). In consecutive forecast calculations the heat capacity was determined by saturation temperature by 8.8%... WebThe material has a molecular weight of 120.92. Its critical constants are: T c = 385 K, p c = 41.2 bars, and Z c = (p c v c / R T c ) = 0.278 The saturated liquid at 20 C has a specific …
Refrigerant - Wikipedia
WebSpecific heat cp can within moderate temperature changes be regarded as constant. more about gases and specific heats The enthalpy in a fluid is defined as: h = u + p / ρ (3) where h = enthalpy (kJ/kg) u = internal energy (kJ/kg) p = absolute pressure (Pa) ρ = density (kg/m3) Combining (3) and the Ideal Gas Law: h = u + R T (4) where WebRefrigerant (R-410A) Replacement for R-13B1: Properties and Operating Characteristics of Freon™410A Refrigerant in Very Low Temperature Systems ... Specific Heat, Vapor at 25 °C (77 °F) kJ/kg·K Btu/lb·°F 0.823 0.199 0.468 0.112 Heat of Vaporization at Normal Boiling Point kJ/kg Btu/lb 276.2 118.8 118.8 hrsa homeless definition
Study on the Coupling Effect of Heat Transfer and Refrigerant ...
WebAug 30, 2024 · The shortcut model predicted the COP by using system temperatures and thermodynamic data of refrigerant (i.e., specific heat capacity and molar latent heat of vaporization). This chapter proposes a new refrigeration model to predict the net power demand for various design options (refrigerants and configuration) of the refrigeration … WebIt has low chlorine content and ozone depletion potential and a modest global warming potential. ODP1) = 0.05 and GWP2) = 1700 R22 can be used in small heat pump systems, … WebThe formulation applicable to both the liquid and vapor phases at pressures up to 70 MPa, and for a temperature range from the ttiple point to 450 K. Figure 2 shows the percent deviations between calculated and experimental isochoric heat … hrsa healthy start program