part a please will rate ATT rtl 55 i 1051 AM Question T 300

part a) please, will rate!

AT&T; }.rtl 55% i 10:51 AM Question T -300 K Ag HEAT Ag EXCHANOER the heat exchanger shown is used to heat feed water in a steam power plant. although the purpose of the device is to heat the water enterlng at point 2, there are losses of heat to the surroundings at four locations on the surface, it is determined that 40% of the heat is lost from rea A1 at 450 C, 25% of the lost heat is lost from area A2 at 500C, 20% is lost from A3 at a temperature of 60°C and 15% is lost from A4 which is at 700C. the ambient temperature is 300K and the necessary mass flow rates re noted on the sketch. determine the following: a) Find the total rate of heat transfer from the feed water heater in kW b) calculate the rate of entropy production in the control volume in kW/K

Solution

total rate of heat transfer will be 500 + 450 = 950