Question

In a movie theater in winter, 510 people, each generation sensible heat at a rate of 80 W, are watching a movie. The heat losses through the walls, windows, and the roof are estimated to be 130,000 Btu/h. Determine the contribution of people to the heating of the building. The average rate of heat generation from people in a movie theater in sensible form is 80 W per person.

Answer 1

`139213.68\ \text{Btu/h}`

Step-by-step explanation:

Number of people = 510

Heat generated per person with respect to time = 80 W

`1\ \text{W}=3.4121\ \text{Btu/h}`

Heat generated by 510 people is

`\dot{Q}=510* 80* 3.4121`

`\Rightarrow \dot{Q}=139213.68\ \text{Btu/h}`

The contribution of people to the heating of the building is
`139213.68\ \text{Btu/h}`