Question

Water is often used for cooling processes. Usually it is recycled and comes from cooling towers so the water is usually only available at 80°F for cooling. Bypasses are often used for control purposes. The following is an abstraction of the cooling process of a plant. 8.(4) (Note, the +Q's are heat generated by the system to be transferred to the cooling water, -Q's are removed from the cooling water) 50,000 0-100.000 Btu/min Fl 500 lb/min T80°F F9-0.75 F8 If 85% of stream #1 is sent to the bypass of stream #2: a) What is the temperature of the exit stream (#8)?

Answer 1

Soluhon p-soo 써nim out ain #50000 . ghufman 00, DOO Fa D.asF giren that F2:85% off, 7s ib丿rnim F3:0.ls F, = 0+5 (so)= and Asuniny that he proceas tabes phue at tatm 96 i Assum 212° F = 3602.65十100000 My= 103602, 8s Btu

( ,' giren that F9:0 755, Now H6 = 53 602.65 + 0.75 fehq (48 038x425)t53 60 2灯to.rhhi Now F05 F)

3 n the sytom, man remain von tant dinu ho man i added oemoved ん11 give Te T. F