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Stainless steel ball bearings (r 5 8085 kg/m3 and cp 5

Thermodynamics: An Engineering Approach | 8th Edition | ISBN: 9780073398174 | Authors: Yunus A. Cengel ISBN: 9780073398174 171

Solution for problem 482 Chapter 4

Thermodynamics: An Engineering Approach | 8th Edition

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Thermodynamics: An Engineering Approach | 8th Edition | ISBN: 9780073398174 | Authors: Yunus A. Cengel

Thermodynamics: An Engineering Approach | 8th Edition

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Problem 482

Stainless steel ball bearings (r 5 8085 kg/m3 and cp 5 0.480 kJ/kg8C) having a diameter of 1.2 cm are to be quenched in water at a rate of 800 per minute. The balls leave the oven at a uniform temperature of 9008C and are exposed to air at 258C for a while before they are dropped into the water. If the temperature of the balls drops to 8508C prior to quenching, determine the rate of heat transfer from the balls to the air.

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Textbook: Thermodynamics: An Engineering Approach
Edition: 8
Author: Yunus A. Cengel
ISBN: 9780073398174

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Stainless steel ball bearings (r 5 8085 kg/m3 and cp 5