PROBLEM 1: A 20-ton vapor compression refrigeration system is to evaporate R-12 at -20°C and to condense it at 40°C. The vertical compressor is to run at 10000 rpm; it is single acting, has the bore equal to the stroke, and has 5% clearance. Vapor enters the compressor at -10°C and liquid enters the expansion valve at 30°C. 1.1 What refrigeration flow rate is required? 1.2 What would be the bore and stroke of the compressor? 1.3 What power is required by the compressor? 1.4 What is the quantity of the cooling water required in the condenser for a 8-degree increase in temperature?

PROBLEM 1: A 20-ton vapor compression refrigeration system is to evaporate R-12 at -20°C and to condense it at 40°C. The vertical compressor is to run at 10000 rpm; it is single acting, has the bore equal to the stroke, and has 5% clearance. Vapor enters the compressor at -10°C and liquid enters the expansion valve at 30°C. 1.1 What refrigeration flow rate is required? 1.2 What would be the bore and stroke of the compressor? 1.3 What power is required by the compressor? 1.4 What is the quantity of the cooling water required in the condenser for a 8-degree increase in temperature?

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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