Thermodynamics: An Engineering Approach 8th Edition

Published by McGraw-Hill Education
ISBN 10: 0-07339-817-9
ISBN 13: 978-0-07339-817-4

Chapter 14 - Gas-Vapor Mixtures and Air-Conditioning - Problems - Page 751: 14-53C

Answer

Metabolism is a chemical processes that occur within a living organism, food such as carbohydrates, fat, and protein is burned in order to perform the necessary bodily functions. For an average adult male, it is about 88 W when doing no activity like sleeping, 115 W when doing little activity like office work, and 440 W for heavy physical work. Above metabolic heat is dissipated to the surrounding hence it is important to consider metabolic rate while designing the heating and air-conditioning. Metabolic heat load adds to the cooling load in summer and contributes to the heating in winter.

Work Step by Step

Metabolism is a chemical processes that occur within a living organism, food such as carbohydrates, fat, and protein is burned in order to perform the necessary bodily functions. For an average adult male, it is about 88 W when doing no activity like sleeping, 115 W when doing little activity like office work, and 440 W for heavy physical work. Above metabolic heat is dissipated to the surrounding hence it is important to consider metabolic rate while designing the heating and air-conditioning. Metabolic heat load adds to the cooling load in summer and contributes to the heating in winter.
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