A circular Nickel-Chrome wire with radiating efficiency of 0.6, emissivity of 1 and specific resistance of 101.6 x 10-8 Q-m will be used in a 20 kW electric oven. The manufactured electric oven is for sale in Malaysia domestic market. The wire temperature is not to exceed 1170 °C and the temperature of the charge is to be 500 °C. Compute the dimensions of a heating element to meet the above specifications.

A circular Nickel-Chrome wire with radiating efficiency of 0.6, emissivity of 1 and specific resistance of 101.6 x 10-8 Q-m will be used in a 20 kW electric oven. The manufactured electric oven is for sale in Malaysia domestic market. The wire temperature is not to exceed 1170 °C and the temperature of the charge is to be 500 °C. Compute the dimensions of a heating element to meet the above specifications.

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.7MCQ: Consider Figure 3.5. Match the following, those on the left to those on the right. (i) Im (a)...

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