Fundamentals of Engineering Thermodynamics 8th Edition

Published by Wiley
ISBN 10: 1118412931
ISBN 13: 978-1-11841-293-0

Chapter 4 - Problems: Developing Engineering Skills - Page 219: 4.3

Answer

Mass flow rate = Density * Area * Velocity Here we are given area, velocity and for finding density we use the ideal gas equation, pv=nrt , which gives Density = p(molar mass)/(rt) putting the values of temperature in kelvins and molar mass 18 as it is steam , we get density as 19.839 now putting the values of rho(density) , area(pie* d^{2}/4 , and velocity 150 as given we get Mass flow rate as 0.5983 (remember to convert diameter in meters.

Work Step by Step

Mass flow rate = Density * Area * Velocity Here we are given area, velocity and for finding density we use the ideal gas equation, pv=nrt , which gives Density = p(molar mass)/(rt) putting the values of temperature in kelvins and molar mass 18 as it is steam , we get density as 19.839 now putting the values of rho(density) , area(pie* d^{2}/4 , and velocity 150 as given we get Mass flow rate as 0.5983 kg/sec (remember to convert diameter in meters.
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