Provide clear and complete solution including diagrams I. Solve Problem No. 2 and Problem No. 3 only.Refrigerating Machine and Reversed Carnot Cycle 11PROBLEMS(1) A reversed Carnot cycle is used for refrigeration andrejects 1,000 kW of heat at 340 K while receiving heat at 250 K.Determine (a) COP, (b) the power required, and (c) therefrigerating effect.Ans. (a) 2.778, (b) 264.7 kW (c) 735.3 kW(2) A reversed Carnot cycle has a refrigerating COP of 4.(a) What is the ratio Tmax/Tmin? (b) If the work input is 6 kW,what will be the maximum refrigerating effect, kJ/min and tons.Ans. (a) 1.25, (b) 6.82 TR(3) A reversed Carnot engine removes 40,000 kW from aheat sink. The temperature of the heat sink is 260 K and thetemperature of the heat reservoir is 320 K. Determine the powerrequired of the engine.Ans. 9230.7 kW

Answer 2: Given data: COP=4W=6 kW Need to determine the temperature ratio and refrigerating effect.

(2) A reversed Carnot cycle has a refrigerating COP of 4. (a) What is the ratio Tmax/Tmin? (b) If the work input is 6 kW, what will be the maximum refrigerating effect, kJ/min and tons. Ans. (a) 1.25, (b) 6.82 TR (3) A reversed Carnot engine removes 40,000 kW from a heat sink. The temperature of the heat sink is 260 K and the temperature of the heat reservoir is 320 K. Determine the power required of the engine. Ans. 9230.7 kW

(2) A reversed Carnot cycle has a refrigerating COP of 4. (a) What is the ratio Tmax/Tmin? (b) If the work input is 6 kW, what will be the maximum refrigerating effect, kJ/min and tons. Ans. (a) 1.25, (b) 6.82 TR (3) A reversed Carnot engine removes 40,000 kW from a heat sink. The temperature of the heat sink is 260 K and the temperature of the heat reservoir is 320 K. Determine the power required of the engine. Ans. 9230.7 kW

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.75P: Referring to Problem 1.74, how many kilograms of ice can a 3-ton refrigeration unit produce in a...

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