Two 400W fans are switched on in a perfectly-insulated, closed room at atmospheric pressure and a temperature of 18°C. If the fans operate continuously and the room is 5m x 6m with 3.5m high ceiling. Assuming that the specific gas constant and specific heat capacity of air at a constant volume are 287 J/kg.K and 717 J/kg.K respectively: (a) Calculate the temperature of the air in the room after 2 hours, stating all of the assumptions made. (b) What would be the temperature of the room if there was a heat loss through the walls of 750 W throughout the two hours?

Two 400W fans are switched on in a perfectly-insulated, closed room at atmospheric pressure and a temperature of 18°C. If the fans operate continuously and the room is 5m x 6m with 3.5m high ceiling. Assuming that the specific gas constant and specific heat capacity of air at a constant volume are 287 J/kg.K and 717 J/kg.K respectively: (a) Calculate the temperature of the air in the room after 2 hours, stating all of the assumptions made. (b) What would be the temperature of the room if there was a heat loss through the walls of 750 W throughout the two hours?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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