Question

A classroom contains 60 students is to be air-conditioned using a window airconditioning unit of 5 kW cooling capacity. A person at rest may be assumed to dissipate heat at a rate of 360 kJ/h. There are 10 tube lights and 10 ceiling fans in the room, each with a rating of 40 W and 75 W respectively. The rate of heat transfer to the classroom through the walls and the windows are estimated to be 15000 kJ/h. If the room air is to be maintained at a constant temperature of 20°C, determine the number of window air-conditioning units required.

Answer 1

Answer:

blast

Explanation:

blast is Answer........