A resistance oven employing nichrome wire is to be operated from 220 V single phase supply and is to be rated at 16 kW. If the temperature of the element is to be limited to 1170 °C and average temperature of the charge is 500 °C, find the diameter and length of the element wire. Radiating efficiency = 0.57, Emissivity=0.9, Specific resistance of nichrome = 1.09 x 10-6-m.

A resistance oven employing nichrome wire is to be operated from 220 V single phase supply and is to be rated at 16 kW. If the temperature of the element is to be limited to 1170 °C and average temperature of the charge is 500 °C, find the diameter and length of the element wire. Radiating efficiency = 0.57, Emissivity=0.9, Specific resistance of nichrome = 1.09 x 10-6-m.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...

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