5000 cfm of outdoor air at 100°F/75°F is cooled to 85°F in a direct evaporative cooler. Air then enters a cooling coil and leaves at 60°F and 92% RH. Use the actual data analysis. Do not use the standard conditions analysis nor the protractor on the psychrometric chart. a) Draw the processes on the attached psychrometric chart b) Calculate the mass flow rate of dry air, Ib/hr c) Calculate the rate of condensate, Ib/h d) Compute the sensible cooling, the latent cooling and the total cooling of the cooling coil, Btu/h e) Specify the SHR, the apparatus dew point and the bypass factor of the cooling coil.

5000 cfm of outdoor air at 100°F/75°F is cooled to 85°F in a direct evaporative cooler. Air then enters a cooling coil and leaves at 60°F and 92% RH. Use the actual data analysis. Do not use the standard conditions analysis nor the protractor on the psychrometric chart. a) Draw the processes on the attached psychrometric chart b) Calculate the mass flow rate of dry air, Ib/hr c) Calculate the rate of condensate, Ib/h d) Compute the sensible cooling, the latent cooling and the total cooling of the cooling coil, Btu/h e) Specify the SHR, the apparatus dew point and the bypass factor of the cooling coil.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 8RQ: Frost accumulates on the evaporators of forced-draft refrigerators because A. they are generally...

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