In the condenser of a thermoelectric plant, steam will be condensed at a temperature of 50°C by using cooling water from a nearby lake, which enters the condenser tubes at 18°C at a rate of 101 kg/s and leaves at 27°C Determine the rate of condensation of the vapor in the condenser.

An autoclave contains 1000 cans of pea soup. It is heated to an overall temperature of100C. If the cans are to be cooled to 40C before leaving the autoclave, how much coolingwater is required if it enters at 15C and leaves at 35C? The specific heats of the pea soupand the can metal are 4.1 kJ/kgC and 0.5 kJ/kgC, respectively. The weight of each can is60g and it contains 0.45 kg of pea soup. Assume that the heat content of the autoclave wallsabove 40C is 1.6x104 kJ and that there is no heat loss through the walls. Ans. 1,526.85 Kg

A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries Helium at 200 kPa and 120°C. Now the valve is opened, and helium is allowed to flow into the tank until the pressure reaches 200 kPa, at which point the valve is closed. Determine the final temperature of the Helium in the tank if the specific heat ratio for Helium (k=Cp*/Cv*) is 1.667.

Steam enters the condenser of a steam power plant at 20 kPa and aquality of 90 percent with a mass flow rate of 20,000 kg/h. It is to be cooled by water from anearby river by circulating the water through the tubes within the condenser. To preventthermal pollution, the river water is not allowed to experience a temperature rise above10°C. If the steam is to leave the condenser as saturated liquid at 20 kPa, Determine(a) the mass flow rate of the cooling water required, and(b) rate of heat loss from the steam.   Please attempt (a) then (b)