Considering Air-Conditioning ApplicationsIn an industrial
Chapter 12, Problem 89P(choose chapter or problem)
In an industrial dryer operating at steady state, atmospheric air at \(80^{\circ} \mathrm{F}\), 1 atm, and 65% relative humidity is first heated to \(280^{\circ} \mathrm{F}\) at constant pressure. The heated air is then allowed to pass over the materials being dried, exiting the dryer at \(150^{\circ} \mathrm{F}\), 1 atm, and 30% relative humidity. If moisture is to be removed from the materials at a rate of 2700 lb/h, determine
(a) the mass flow rate of dry air required, in lb/h.
(b) the rate of heat transfer to the air as it passes through the heating section, in Btu/h.
Neglect kinetic and potential energy effects.
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