. Air, acting as an ideal gas, enters a nozzle steadily at 350 kpa, 60°C, and 60 m/s and leaves at 100 kpa and 300 m/s. The heat loss from the nozzle is estimated to be 15 kJ/kg of air flowing. The inlet area of the nozzle is 0.01m2 . Determine (a) the exit temperature of air and (b) the exit area of the nozzle.

Fluids at rest possess no flow energy. a)- true b)- false

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater