Web11–12 A refrigerator uses refrigerant-134a as the working fluid and operates on an ideal vapor-compression refrigeration cycle between 0.12 and 0.7 MPa. The mass flow rate of the refrigerant is 0.05 kg/s. Show the cycle on a T-s diagram with respect to saturation lines. WebAn electric resistance heater inside the cylinder is now turned on, and 1185 kJ of energy is transferred to the steam. Determine the entropy change of the water during this process; Question: An insulated piston cylinder device contains 4 L of saturated liquid refrigerant-134a (R-134a) at a constant pressure of 200 kPa. An electric resistance ...
Refrigerant-134a at 320 kPa and 40$^\circ{}$C undergoes an i
WebSep 12, 2012 · Refrigerant 134a enters a heat exchanger operating at steady state as a superheated vapor at 10 bars, 60C, where it is cooled and condensed to saturated liquid at 10 bars. The mass flow rate of the refrigerant is 10 kg/min. A separate stream of air enters the heat exchanger at 37C with a mass flow rate of 80 kg/min. Ignoring heat transfer from ... Weba low-quality saturated mixture. h3 = h4 4-1: An internally, reversible, constant pressure heat interaction in which the refrigerant (two-phase mixture) is evaporated to a saturated vapor at state point 1. The latent enthalpy necessary for evaporation is supplied by the refrigerated ... refrigerant R-134a can be read off Tables A-12 and A-13. petsmart watertown ny
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WebQuality is a measure of the ratio of vapor mass to total mass. For example quality of 0.1 or 10%, which is located near the saturated liquid line, describes points that have 10% vapor by mass. The 0.9 or 90% line, which is located near the saturated vapor line, describes points that have 90% vapor by mass. ... (Values are for Refrigerant R-134a). WebApr 21, 2024 · A 0.5 m3 rigid tank contains refrigerant-134a initially at 200 kPa and 40 percent quality. Heat is now transferred to the refrigerant until the pressure reaches 800 kPa. Determine (a) the mass of the refrigerant in the tank and (b) the amount of heat transferred. Also, show the process on a P-v diagram with respect to saturation lines. WebA piston–cylinder device contains 0.85 kg of refrigerant- 134a at _10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric … phenolic board for formworks