Answer:
Fouling :
When rust or undesired material deposit in the surface of heat exchanger,is called fouling of heat exchanger.
Effect of heat exchanger are as follows"
1.It decreases the heat transfer.
2.It increases the thermal resistance.
3.It decreases the overall heat transfer coefficient.
4.It leads to increase in pressure drop.
5.It increases the possibility of corrosion.
Answer:
Explanation:
Heat dissipated by 26 people per second
= 26 x 360 x 1000 / (60 x 60)
= 2600 J
Heat dissipated by bulbs per second
= 15 x 40
= 600 J
Heat dissipated by fans per second
200 J
Heat dissipated by air coming in
= 200 x 10 x 1000 / (60 x 60)
=555.55 J
Heat gain by walls
= 5000 x 1000 / (60 x 60)
= 1388.88 J
Total heat gain per second
= 2600 + 600+200+555.55
= 3955.55 J
Capacity of air-conditioner required
= 3955.55 J/s
= 3.9 kJ/s
= 3.9kW
= 4 kW
Answer:
Breathing toxic substances
Explanation:
Asphyxiation is when your lungs stop functioning..'