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Unformatted text preview: relative humidity. We begin by tracing the process on the psychrometric chart. Going to the psychrometric chart at T DB =18 ° C and φ = 100%, we find ϖ out = 13 gm/kg of air and h av,out = 51.5 kJ/kg of air Then solving our water conservation we have 7 13 20 m m out in air out , == ϖϖ = & & l gm/(kg of dry air) Using the mass flow rate of air we find that we will need to drain 0.42 gm of liquid water per second. For the heat transfer rate, we calculate from the energy equation air) of kJ/(kg/s 91 . 29 ) 85 )( 007 . ( 5 . 51 82 h m m h h m Q out , air out , out , av out , av air out == = l l & & & & The cooling coils must be able to remove 1.8 kW. Fall 2007 2...
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This note was uploaded on 07/25/2008 for the course ME 416 taught by Professor Somerton during the Fall '07 term at Michigan State University.
 Fall '07
 SOMERTON
 Heat Transfer

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