Figure P10.24 shows the schematic diagram of a vaporcompression refrigeration system with two evaporators using Refrigerant 134 a as the working fluid. This arrangement is used to achieve refrigeration at two different temperatures with a single compressor and a single condenser. The lowtemperature evaporator operates at -18^∘ C with saturated vapor at its exit and has a refrigerating capacity of 3 tons. The higher-temperature evaporator produces saturated vapor at 3.2 bar at its exit and has a