Supermarkets in the United States use air-conditioning

Fundamentals of Engineering Thermodynamics | 8th Edition | ISBN: 9781118412930 | Authors: Michael J. Moran

Problem 12.5D Chapter 12

Fundamentals of Engineering Thermodynamics | 8th Edition

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Fundamentals of Engineering Thermodynamics | 8th Edition | ISBN: 9781118412930 | Authors: Michael J. Moran

Fundamentals of Engineering Thermodynamics | 8th Edition

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Problem 12.5D

Supermarkets in the United States use air-conditioning systems that are usually designed primarily to control temperature, and these typically produce a relative humidity of about 55%. At this relative humidity, excessive frost and condensation can form inside refrigerated display cases, and a substantial amount of energy must be expended to avoid these problems. Investigate technologies available for reducing overall store humidity levels within supermarkets to 4045%, thereby reducing problems associated with frost and condensation. Estimate the potential operating cost saving associated with such a strategy for a supermarket within your locale. Refrigerated display cases with glass-door fronts can significantly reduce the refrigeration load. Whatare the associated impacts on the overall store humiditylevel and the occurrence of frost and condensation formingwithin the closed cases? Write a report including samplecalculations and at least three references.

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Textbook: Fundamentals of Engineering Thermodynamics
Edition: 8
Author: Michael J. Moran
ISBN: 9781118412930

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