2007-08-27 17:55:45 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Two reasons:
1 - To keep the surrounding air from warming up the cold air in the duct
2 - To prevent condensation from accumulating and dripping on everything under it, and/or rusting the ductwork
2007-08-27 18:02:05 · answer #1 · answered by skeptik 7 · 1⤊ 0⤋
To prevent loss of the "cold" in the reduced temperature air being forced down the duct. It's called insulation, and that is exactly what it is there for. It helps to keep the cold air cold, and the warm air away from it. The same holds true for heated air during the winter.
2007-08-28 01:02:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
To avoid the heat transfer from the atmosphere to the ac duct.
If heat transfer is taken it calls for additional energy to cool the air in the duct.Mainly to avoid the Energy loss.
2007-08-28 01:14:39 · answer #3 · answered by kittyclever 1 · 0⤊ 0⤋
To conserve the BTU's of thermal energy coveyed to the vent of the duct,thus preventing loss of efficiency.
2007-08-28 01:03:00 · answer #4 · answered by dukeofoakisland 1 · 0⤊ 0⤋
If it's indoors, there's no thermal requirement for insulation. It's there to prevent it dripping water on you.
Try it sometime in your house and you'll find out.
2007-08-28 03:09:17 · answer #5 · answered by Firebird 7 · 0⤊ 0⤋
So it doesn't drip with condensation and make a wet mess all over the floors.
hope this helped.
2007-08-28 01:03:33 · answer #6 · answered by Giddyup 4 · 0⤊ 0⤋