Figure P4.84 provides steady-state data for the ducting ahead of the chiller coils in an air-conditioning system. Outside air at 90 °F is mixed with return air at 75 °F. Stray heat transfer is negligible, kinetic and potential energy effects can be ignored, and the pressure throughout is 1 atm. Modeling the air as an ideal gas with Cp = 0.24 Btu/ lbm. °R, determine (a) the mixed-air temperature, in "F, and (b) the diameter of the mixed-air duct, in ft.

Figure P4.84 provides steady-state data for the ducting ahead of the chiller coils in an air-conditioning system. Outside air at 90 °F is mixed with return air at 75 °F. Stray heat transfer is negligible, kinetic and potential energy effects can be ignored, and the pressure throughout is 1 atm. Modeling the air as an ideal gas with Cp = 0.24 Btu/ lbm. °R, determine (a) the mixed-air temperature, in "F, and (b) the diameter of the mixed-air duct, in ft.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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