Engineering Materials, Metal Casting, Forming, Joining, Machining and Machine Tool Operations, Metrology and Inspection, Computer Integrated Manufacturing, Production Planning and Control, Inventory Control, Operations Research


Postby vishwasmys » Thu Jan 03, 2013 8:17 pm

Air with Enthlapy of 100KJ/Kg is compressed by an air compressor to a pressure and temperature at which enthalpy becomes 200KJ/Kg. The loss of heat is 40KJ/Kg from compressor as AIR passes through it. neglecting KE and PE , the power required for an air mass flow of 0.5kg/s is______?
options are
1) 30KW
2) 50KW
3) 70KW
4) 90KW

please help as quickly as possible.......
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