Using the following blower is it possible to move 5,000 CFM of air 150' below the oceans surface?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270037004376
2006-10-11 11:44:11 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
No real details other than picture on link, but picture shows machine which no way would generate or withstand pressure necessary to force air down to 150ft below sea level.
2006-10-11 12:17:24 · answer #1 · answered by Robert A 5 · 0⤊ 0⤋
Blowers are usually provided with a blower curve, which plots air flow versus pressure. The more back pressure on the blower, the less air it moves.
A blower like shown in your link would have a greatly decrease air flow against very much back pressure.
So if you were trying to move 5000 CFM of air against the pressure at 150 ft below the ocean surface I would say very unlikely.
The way to know for sure is to get technical info on this blower, specifically the blower curve.
2006-10-11 19:24:38 · answer #2 · answered by an engineer 2 · 1⤊ 0⤋
No way!!!! The blower you linked is specced at 2.1" - that means it puts out the 20,000 cfm at a pressure equal to a depth of 2.1" of water. You want to raise the backpressure by a factor of 1000. Obviously there isn't a chance it could work.
The blower is a squirrel cage type, designed for low pressure and high flow. You need a pressure of about 60 psi. That requires a piston type pump (typical of air compressors) or perhaps a diaphragmpump. Further, moving 5000 ACFM at 60 psi amounts to 1300 hp of PV work alone. The required work will be even higher depending on the level of intercooling you can get.
2006-10-11 22:25:49 · answer #3 · answered by Pretzels 5 · 1⤊ 0⤋
No way no how. Thats a centrifugal blower. At best it would be able to develop a few psi. 150 ft of water would be roughly 75 psi you need an air compressor not a blower to deliver that kind of pressure.
2006-10-11 22:49:23 · answer #4 · answered by Roadkill 6 · 1⤊ 0⤋