please, its urgent, need it for my exam tom..thanx! [:)]
as in, its a give reason question....thanx once again....
2007-03-10 19:34:39 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Cold air sinks
2007-03-10 19:38:09 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Not all air conditioners are installed at a height. Some are almost right on the floor! But, yes, most of them are installed at a height. It is because of a simple thing about air. Remember, hot air rises, and cold air sinks. So, if you put your air conditioners at a height, the cold air it gives, sinks down and you feel it faster than when your air conditioner is very low, it gives off cold air, which sinks to the floor and you don't feel it. You'll have to wait 'til the bottom part of your room is cold, then you slowly get to feel it! It's that simple! Good luck in your exam!
2007-03-11 04:47:22 · answer #2 · answered by Apple Waffle 2 · 1⤊ 0⤋
It has very little to do with the mechanics of, or the nature of air movement. It is as simple as this, equipment security, or to put the equipment as close as possible to where the cooled air will be used. If the room, such as a kitchen, has a high heat production rate, you want the maximum effect from the AC unit. The sooner the air gets to it's area of use, the more cool air you have as opposed to the air being warmed as it flows through the duct work. One other point, the building characteristics might not allow for the piping to an evaporator, much less the duct work needed to get the cool air where it is wanted.
2007-03-11 05:02:20 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Air Conditioners are installed at a height because the hot hot air in the room rises up as hot bodies are less dense. there the Air conditioner cools it and it gets conditioned. the air which is now present at the bottom becomes hot as compared to upper layers of air. It thus rises up forcing cold air to go down. thus a convevtion current is set up and the room becomes cool.
2007-03-11 04:46:27 · answer #4 · answered by Shine 1 · 0⤊ 1⤋
because the air will block if they are kept down due to various items in the room..when you install them at a height, cool air travels down without and blockage and cools the whole room.
If it wasnt for the points i would have said-DO YOUR OWN STUDIES, SLACKER!!
2007-03-11 04:44:33 · answer #5 · answered by MagicalPixie 3 · 0⤊ 1⤋