Air enters a natural draft cooling tower at 100kPa and 15°C and 50% humidity. Cooling-water at 50°C from a steam power cycle condenser is sprayed into the cooling tower at a rate of 26kg/s and leaves at 25°C. The air leaves the tower saturated at 35°C. Calclate the mass flow rates specified (kg/s) Mass flow rate of water vapour entering the system with the air (kg/s) Mass flow rate of water vapour leaving the system with the air (kg/s) Mass flow rate of water evaporated due to the cooling action in the system (kg/s) A. 1.326 B. 1.014 C. 0.879 D. 0.527 E. 0.135
Air enters a natural draft cooling tower at 100kPa and 15°C and 50% humidity. Cooling-water at 50°C from a steam power cycle condenser is sprayed into the cooling tower at a rate of 26kg/s and leaves at 25°C. The air leaves the tower saturated at 35°C. Calclate the mass flow rates specified (kg/s) Mass flow rate of water vapour entering the system with the air (kg/s) Mass flow rate of water vapour leaving the system with the air (kg/s) Mass flow rate of water evaporated due to the cooling action in the system (kg/s) A. 1.326 B. 1.014 C. 0.879 D. 0.527 E. 0.135
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:QUESTION 3
Air enters a natural draft cooling tower at 100kPa and 15°C and 50% humidity.
Cooling-water at 50°C from a steam power cycle condenser is sprayed into the cooling
tower at a rate of 26kg/s and leaves at 25°C.
The air leaves the tower saturated at 35°C.
Calclate the mass flow rates specified (kg/s)
Mass flow rate of water vapour entering the system.
with the air (kg/s)
✓ Mass flow rate of water vapour leaving the system
with the air (kg/s)
Mass flow rate of water evaporated due to the cooling
action in the system (kg/s)
✓ Mass flow rate of make-up water needed to keep the
cooling-water flow rate constant (kg/s)
A. 1:326
B. 1.014
C. 0.879
D. 0.527
E. 0.135
F. 0.034
G.0.005
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