MCG 2130 Lecture Notes - Lecture 3: Air Compressor, Isentropic Process, The Sketch

• School: University of Ottawa
• Department: Mechanical Engineering
• Course: MCG 2130
• Professor: Najwa Haddad

Document Summary

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. 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 , 2)(9 marks) the schematic shows part of a system used in cooling the cabin of an airplane. Air at p = 200 kpa and t = 107 c enters a heat exchangeur where it is cooled at constant pressure until t = 47 c.