Pro/Forums - View Single Post - Performance Vs Noise

UNDERBYTE · 12-13-2005, 10:14 AM

I spent a day or two investigating building my own set up about 15 years ago, But ended up buying a 400 cfm set up with a large contract I got.

Most fan manufacturers bulid their own like the one in the link below, a box, some nozzels, couple of flow straightners, pressure taps, manometers, blast gate(to vary airflow) counter blower. Get ahold of the AMCA specs it will just take a day for you to figure out how to build it. Pretty simple actually, probably build it in a day or two for a couple of grand or less

I have seen homemade flow chambers washing machine sized to garage sized for measuring 40,000 cfm

Nozzels at the time were 300 to $400 USD apiece

I prefer the liquid manometers, you get more of a physical sense when the fan starts slip or when your flow test has flow anomaly over the digital ones

http://www.torringtonresearch.com/te...ent.html#tests

12-13-2005, 10:14 AM	#26
UNDERBYTE Cooling Neophyte Join Date: Oct 2002 Location: CENTRX Posts: 75	Re: Performance Vs Noise - Experimentation I spent a day or two investigating building my own set up about 15 years ago, But ended up buying a 400 cfm set up with a large contract I got. Most fan manufacturers bulid their own like the one in the link below, a box, some nozzels, couple of flow straightners, pressure taps, manometers, blast gate(to vary airflow) counter blower. Get ahold of the AMCA specs it will just take a day for you to figure out how to build it. Pretty simple actually, probably build it in a day or two for a couple of grand or less I have seen homemade flow chambers washing machine sized to garage sized for measuring 40,000 cfm Nozzels at the time were 300 to $400 USD apiece I prefer the liquid manometers, you get more of a physical sense when the fan starts slip or when your flow test has flow anomaly over the digital ones http://www.torringtonresearch.com/te...ent.html#tests