A wind tunnel is considered to be a steady-state operation, the system receives one hundred fifty pound- mass per minute of air at 200 psfg and 240 degrees Fahrenheit. The fluid is discharged from a point five meters above the datum/ reference point at 4,155 psf and 550 degrees Fahrenheit. Assuming that the velocity found at the inlet is 7,005 feet per minute and the Heat supplied is 515 BTU/min. During the process the density decreases by 15 percent and the internal energy is decreased by 1.05 horsepower. Determine the Work done in (a) Horsepower and BTU/s. (b) Considering the given on 3a, if the Work done is doubled, determine the Heat supplied during the process? (c) Considering the given on 3b, if Heat is doubled, what is the work done after 9 minutes?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A wind tunnel is considered to be a steady-state operation, the system receives one hundred fifty pound-
mass per minute of air at 200 psfg and 240 degrees Fahrenheit. The fluid is discharged from a point five
meters above the datum/ reference point at 4,155 psf and 550 degrees Fahrenheit. Assuming that the
velocity found at the inlet is 7,005 feet per minute and the Heat supplied is 515 BTU/min. During the
process the density decreases by 15 percent and the internal energy is decreased by 1.05 horsepower.
Determine the Work done in (a) Horsepower and BTU/s. (b) Considering the given on 3a, if the Work
done is doubled, determine the Heat supplied during the process? (c) Considering the given on 3b, if Heat
is doubled, what is the work done after 9 minutes?
Transcribed Image Text:A wind tunnel is considered to be a steady-state operation, the system receives one hundred fifty pound- mass per minute of air at 200 psfg and 240 degrees Fahrenheit. The fluid is discharged from a point five meters above the datum/ reference point at 4,155 psf and 550 degrees Fahrenheit. Assuming that the velocity found at the inlet is 7,005 feet per minute and the Heat supplied is 515 BTU/min. During the process the density decreases by 15 percent and the internal energy is decreased by 1.05 horsepower. Determine the Work done in (a) Horsepower and BTU/s. (b) Considering the given on 3a, if the Work done is doubled, determine the Heat supplied during the process? (c) Considering the given on 3b, if Heat is doubled, what is the work done after 9 minutes?
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