Find the mass of water, in kg, that can be cooled from 24 0C to -80C from a 10 tons refrigeration system for 15 hrs. ANSWER: 4197.930 kgA refrigeration system is used to cool water in the evaporator at 3 kg/s of water from 22 oC to ice. Find the tons of refrigeration required. ANSWER: 364.48805 TRA two stage cascade refrigeration system uses R-11 as the working substance. The evaporator is at -30 0C and the high pressure condenser is at 300C. The cascade condenser is a direct contact type. The refrigeration load is 24 tons. Given that, h2 = 393 kJ/kg; h6 = 408 kJ/kg. Find the mass flow rate in the low pressure loop. ANSWER: 0.4771 kg/s

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Find the mass of water, in kg, that can be cooled from 24 0C to -80C from a 10 tons refrigeration system for 15 hrs

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.

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Question

Find the mass of water, in kg, that can be cooled from 24 ⁰C to -8⁰C from a 10 tons refrigeration system for 15 hrs. ANSWER: 4197.930 kg
A refrigeration system is used to cool water in the evaporator at 3 kg/s of water from 22 ^oC to ice. Find the tons of refrigeration required. ANSWER: 364.48805 TR
A two stage cascade refrigeration system uses R-11 as the working substance. The evaporator is at -30 ⁰C and the high pressure condenser is at 30⁰C. The cascade condenser is a direct contact type. The refrigeration load is 24 tons. Given that, h2 = 393 kJ/kg; h6 = 408 kJ/kg. Find the mass flow rate in the low pressure loop. ANSWER: 0.4771 kg/s

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