A resistance oven employing nichrome wire is to be operated from 220 V single- phase supply and is to be rated at 16kW. If the temperature of the element is to be limited to 1,270 °C and average...

A resistance oven employing nichrome wire is to be operated from 220 V single-<br>phase supply and is to be rated at 16kW. If the temperature of the element is to be<br>limited to 1,270 °C and average temperature of the charge is 400 °C, find the<br>diameter and length of the element wire. Radiating efficiency = 0.37, emissivity =<br>0.8,<br>specific resistance<br>of nichrome<br>(109<br>x 10-8) ohm-m.<br>=<br>

Extracted text: A resistance oven employing nichrome wire is to be operated from 220 V single- phase supply and is to be rated at 16kW. If the temperature of the element is to be limited to 1,270 °C and average temperature of the charge is 400 °C, find the diameter and length of the element wire. Radiating efficiency = 0.37, emissivity = 0.8, specific resistance of nichrome (109 x 10-8) ohm-m. =

Jun 11, 2022

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A resistance oven employing nichrome wire is to be operated from 220 V single- phase supply and is to be rated at 16kW. If the temperature of the element is to be limited to 1,270 °C and average...

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