MAT 1341 Midterm: MAT 1341 University of Ottawa Tests Winter 2015
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Data and expressions are listed at the end of this exam paper. 1)( 7 marks ) the schematic shows a pump receiving liquid water at t = 15 c and p = 100 kpa. The pressure at the exit of the pump is p = 465 kpa. Water is then admitted in a nozzle having a diameter d = 1 cm. The pressure is p = 100 kpa and the temperature t = 15 c at the exit of the nozzle. Assuming that kinetic energy is negligible except at the exit of the nozzle and that the process in the pump is reversible, calculate: 3: the work required by the pump in kj/kg, the velocity at the nozzles exit v , and the mass flow rate. 2)(9 marks) the schematic shows part of a system used in cooling the cabin of an airplane.
