The evaporator of a vapor compression refrigeration cycle utilizing R-123 as the refrigerant is being used to chill water. The evaporator is a shell and tube heat exchanger with the water flowing through the tubes. The water enters the heat exchanger at a temperature of 54°F. The approach temperature difference of the evaporator is 3°R. The evaporating pressure of the refrigeration cycle is 4.8 psia and the condensing pressure is 75 psia. The refrigerant is flowing through the cycle with a flow rate of 18,000 lbm/hr. The R-123 leaves the evaporator as a saturated vapor and leaves the condenser as a saturated liquid. Determine the following:

a. The outlet temperature of the chilled water

b. The volumetric flow rate of the chilled water (gpm)

c. The UA product of the evaporator (Btu/h-°F)

d. The heat transfer rate between the refrigerant and the water (tons)