A 250 V, 1.5 kW single element electric furnace is to employ a nichrome wire operating at 900°C. Estimate a suitable diameter and lengh of wire. Assume radiating efficiency = 1, emissivity=0.9, resistivity = 1.1 x 10^-6 ohm Ambient temperature = 30°C
A 250 V, 1.5 kW single element electric furnace is to employ a nichrome wire operating at 900°C. Estimate a suitable diameter and lengh of wire. Assume radiating efficiency = 1, emissivity=0.9, resistivity = 1.1 x 10^-6 ohm Ambient temperature = 30°C
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
Problem 14RQ
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A 250 V, 1.5 kW single element electric furnace is to employ a nichrome wire operating at 900°C. Estimate a suitable diameter and lengh of wire.
Assume radiating efficiency = 1, emissivity=0.9, resistivity = 1.1 x 10^-6 ohm Ambient temperature = 30°C.
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