Question
A 20-kW, 1-phase, 220-V resistance oven employs nickelchrome strip 25-mm thick for its heating elements. If the wire temperature is not to exceed 1107 C
A 20-kW, 1-phase, 220-V resistance oven employs nickelchrome strip 25-mm thick
for its heating elements. If the wire temperature is not to exceed 1107 C and the temperature of the charge is to be 500C, calculate dimension of wire required. Assume a radiating efficiency of 0.6 and the specific resistance of nickel chrome as 100 10-6 cm and emissivity 0.9
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Differential Equations and Linear Algebra
Authors: Jerry Farlow, James E. Hall, Jean Marie McDill, Beverly H. West
2nd edition
131860615, 978-0131860612
