Question
A 4.5-KW, 100V, and single phase resistance oven is to have ni-chrome wire heating elements. If the wire temperature is to be 500 and that
A 4.5-KW, 100V, and single phase resistance oven is to have ni-chrome wire heating elements. If the wire temperature is to be 500℃ and that of charge 250℃, calculate the diameter and length of the wire. Resistivity of the ni-chrome alloy is 42.5µΩ-m. Assume the radiating efficiency and the emissivity of the element 0.1 and 0.9, respectively.
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Thermodynamics An Engineering Approach
Authors: Yunus A. Cengel, Michael A. Boles
8th edition
73398179, 978-0073398174
