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Air at 30 degree C, 80% RH is cooled by spraying water at 12degreeC. This causes saturation, followed by condensation, the mixing being assumed to take place adiabatically and the condensate being drained off at 16.7 degree C. The resulting saturated mixture is then heated to produce the required conditions of 60% RH at 25 degree C. The total pressure is constant at 101 kPa. Determine the mass of water supplied to the sprays to provide 10 m3/h of conditioned air. What is the heater power required?
The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
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find a) velocity distribution in the film b) shear stress distribution c) volumetric rate of flow d) average velocity. assume the flow is steady and laminar.
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