At steady state, an electric pump motor develops power along its output shaft of 0.7 hp while drawing 6 amps at 100 V. The outer surface of the motor is at 150°F. Let T = 40°F. Determine: (a) the magnitude of the rate of heat transfer leaving the motor, in Btu/h. (b) the exergy flow with input power, exergy flow with output power, magnitude of exergy flow with heat transfer leaving the motor, and exergy destruction, all in Btu/h.
At steady state, an electric pump motor develops power along its output shaft of 0.7 hp while drawing 6 amps at 100 V. The outer surface of the motor is at 150°F. Let T = 40°F. Determine: (a) the magnitude of the rate of heat transfer leaving the motor, in Btu/h. (b) the exergy flow with input power, exergy flow with output power, magnitude of exergy flow with heat transfer leaving the motor, and exergy destruction, all in Btu/h.
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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At steady state, an electric pump motor develops power along its output shaft of 0.7 hp while
drawing 6 amps at 100 V. The outer surface of the motor is at 150°F. Let T = 40°F.
Determine:
(a) the magnitude of the rate of heat transfer leaving the motor, in Btu/h.
(b) the exergy flow with input power, exergy flow with output power, magnitude of exergy flow
with heat transfer leaving the motor, and exergy destruction, all in Btu/h.
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