Q3. A water chiller (refrigeration plant) uses a flooded evaporator in which the liquid refrigera...
A large refrigeration plant is to be maintained at -18 ?C, and it requires refrigeration at a rate of 210.0 kW . The condenser of the plant is to be cooled by liquid water, which experiences a temperature rise of 8 ?C as it flows over the coils of the condenser. Assume the plant operates on the ideal vapor-compression cycle using R-134a as the working fluid between the pressure limits of 120 kPa and 700 kPa. a) Determine the mass...
1.3 127 5.3 3.(10 pts) A cold storage room (10 m x 10 m x 10 m) is being maintained at 2 °C using a vapor compression refrigeration system that uses R-134a. The evaporator and condenser temperatures are -20 and 40°C, respectively. The walls and ceiling of the storage room is constructed of 15 cm thick concrete (thermal conductivity-1.37 WIm K]) and 4.3 cm thick insulation (thermal conductivity-0.04 W/[m K). The outside insulation surface temperature of the walls (or ceiling)...