Moist air at 30 °C, 3 bar, and 50% relative humidity enters a heat exchanger operating at steady state with a mass flow rate of 450 kg/h and is cooled at constant pressure to 20 °C. Ignoring kinetic and potential energy effects, determine the rate of heat transfer from the moist air stream, in kJ/h. m = 450kg/h T = 30°C PI = 3 bar 9 = 50% ! 2 !! T = 20°C P2 = 3 bar

Moist air at 30 °C, 3 bar, and 50% relative humidity enters a heat exchanger operating at steady state with a mass flow rate of 450 kg/h and is cooled at constant pressure to 20 °C. Ignoring kinetic and potential energy effects, determine the rate of heat transfer from the moist air stream, in kJ/h. m = 450kg/h T = 30°C PI = 3 bar 9 = 50% ! 2 !! T = 20°C P2 = 3 bar

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Moist air at 30 °C, 3 bar, and 50% relative humidity enters a heat exchanger operating at steady
state with a mass flow rate of 450 kg/h and is cooled at constant pressure to 20 °C. Ignoring kinetic
and potential energy effects, determine the rate of heat transfer from the moist air stream, in kJ/h.
m = 450kg/h
T = 30°C
PI = 3 bar
9 = 50%
! 2
%3!
T = 20°C
P2 = 3 bar

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