e flow at the nozzle exit Ae is perfectly expanded. The exit pressure is pe = 0.85 atm while the Pitot pressure measurement at the exit Ae for perfectly expanded flow is p0pitot = 9.863 atm. Find the exit Mach number from the Pitot reading and then calculate the reservoir pres

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]