Answered: ons, then find the amount of air…

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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Air refrigeration works between the pressure limits of 1 bar and 5 bar. The temperature of air entering the
compressor and expansion cylinder are 100C and 250C respectively. The expansion and compression follow the
law pv1.3=Constant. Find the following:
• The theoretical C.O.P of the refrigerating cycle.
• If the load on the refrigerating machine is 10 tons, then find the amount of air circulated per minute
through the system. Assuming the actual C.O.P is 50% of the theoretical C.O.P.
• Length and diameter of the single acting compressor runs at 300 r.p.m and the volumetric efficiency is
85%.

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