A refrigerator draws a steady 0.25 kW of power while rejecting energy by heat transfer to thesurroundings at a rate of 1.1 kW.3.Determine the rate at which energy is removed by heat transfer from the refrigeratedspace, in kW.b.a.Determine the refrigerator's coefficient of performance.1 The convective heat transfer coefficient h =7 W/(m² · K), and the temperature of the airin the room is 25°C. If the condenser coil is meant to remain below 90°C for safety (acompletely made-up safety temperature), how much surface area must the coil have exposed?с.

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ws a steady 0.25 kW of power while rejecting energy by heat transfer to the of 1.1 kW. = the rate at which energy is removed by heat transfer from the refrigerated = the refrigerator's coefficient of performance. ective heat transfer coefficient h =7 W/(m² · K), and the temperature of the air 25°C. If the condenser coil is meant to remain below 90°C for safety (a ade-up safety temperature), how much surface area must the coil have exposed?

ws a steady 0.25 kW of power while rejecting energy by heat transfer to the of 1.1 kW. = the rate at which energy is removed by heat transfer from the refrigerated = the refrigerator's coefficient of performance. ective heat transfer coefficient h =7 W/(m² · K), and the temperature of the air 25°C. If the condenser coil is meant to remain below 90°C for safety (a ade-up safety temperature), how much surface area must the coil have exposed?

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.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.46P

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Question

A refrigerator draws a steady 0.25 kW of power while rejecting energy by heat transfer to the
surroundings at a rate of 1.1 kW.
3.
Determine the rate at which energy is removed by heat transfer from the refrigerated
space, in kW.
b.
a.
Determine the refrigerator's coefficient of performance.
1 The convective heat transfer coefficient h =7 W/(m² · K), and the temperature of the air
in the room is 25°C. If the condenser coil is meant to remain below 90°C for safety (a
completely made-up safety temperature), how much surface area must the coil have exposed?
с.

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