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19 Nov 2019
Air flowing at 1000 ft^3/min, 66 degree F, and 1 atm enters a heat exchange unit and exits at 76 degree F and 1 atm Saturated steam at 12 psia is used to heat the air and leaves the unit operation as saturated water at 12 psia. The system is not adiabatic and heat is lost to the surroundings at - 3 Btu/lb_m steam condensed. Calculate the mass flow rate of the steam.
Air flowing at 1000 ft^3/min, 66 degree F, and 1 atm enters a heat exchange unit and exits at 76 degree F and 1 atm Saturated steam at 12 psia is used to heat the air and leaves the unit operation as saturated water at 12 psia. The system is not adiabatic and heat is lost to the surroundings at - 3 Btu/lb_m steam condensed. Calculate the mass flow rate of the steam.
Elin HesselLv2
28 Oct 2019