4.1. A group of N dancers are dancing in a dancing session in a 70 m² isolated gym initially at 25°C. As the party started, the participants started to dance to soft music. While dancing, the temperature of the body raises from 37.5°C to 38°C. a) What is the total heat transfer rate from dancers to the room? b) What is the final temperature of the room? Assumptions : a) The average height of a person is L cm. b) The average diameter of shoulder is D cm. c) The human body temperature maintains at a temperature of 38°C while dancing. (T,= 38.0°C) k=0.025991 W/m°C, Pr=0.72778, V= 1.6221×105 m²/s, ha=100 W/m² °C, o=5.6703x10® w/m².K“, E=0.99 (thermal radiation emissivity of human body) Group 4,5,6: L: 1.75 cm, D: 115 cm, N: 34

4.1. A group of N dancers are dancing in a dancing session in a 70 m² isolated gym initially at 25°C. As the party started, the participants started to dance to soft music. While dancing, the temperature of the body raises from 37.5°C to 38°C. a) What is the total heat transfer rate from dancers to the room? b) What is the final temperature of the room? Assumptions : a) The average height of a person is L cm. b) The average diameter of shoulder is D cm. c) The human body temperature maintains at a temperature of 38°C while dancing. (T,= 38.0°C) k=0.025991 W/m°C, Pr=0.72778, V= 1.6221×105 m²/s, ha=100 W/m² °C, o=5.6703x10® w/m².K“, E=0.99 (thermal radiation emissivity of human body) Group 4,5,6: L: 1.75 cm, D: 115 cm, N: 34

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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