The figure shows data for a portion of the ducting in a ventilation system operating at steady state. The ducts are well insulated andthe pressure is very nearly 1 atm throughout. The volumetric flow rate entering at state 2 is AV2 = 4000 ft?/min. Assume the ideal gasmodel for air with c, = 0.24 Btu/lb-°R and ignore kinetic and potential energy effects.(AV): = 5000 ft/min Air, cy = 0.24 Btu/lb*RT = 80°Fp=1 atm3 V3 = 400 fuminT3 = ?-Insulation(AV)2T2 = 40°Fn'imin%3DDetermine the temperature of the air at the exit, in °F, and the rate of entropy production within the ducts, in Btu/min-°R.

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Answered: The figure shows data for a portion of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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t = 135°C, h = 567.69 KJ/kg
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The figure shows data for a portion of the ducting in a ventilation system operating at steady state. The ducts are well insulated and the pressure is very nearly 1 atm throughout. The volumetric flow rate entering at state 2 is AV₂ = 3600 ft3/min. Assume the ideal gas model for air with cp = 0.24 Btu/lb-ºR and ignore kinetic and potential energy effects. (AV)₁ = 5000 ft³/min Air, Cp=0.24 Btu/lb R T₁ = 80°F p=1 atm 2 (AV)₂ T₂ = 40°F ft³/min 3 V3 = 400 ft/min T3 = ? -Insulation Determine the temperature of the air at the exit, in °F, and the rate of entropy production within the ducts, in Btu/min.°R.
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