Pro/Forums - View Single Post - Air-pumps (aka fans)

Cathar · 07-07-2003, 06:40 PM

Okay, the deal is this.

I presently have a large 25cm house exhaust fan driving 2 x Camry heater-cores. I've discovered that house exhaust fans don't like running 24/7, and after about 6 weeks the fan is giving up the ghost slowly (spinning slower and slower).

So I have 2 x 15cm Comair-Rotron 210CFM beasties on the way.

The two heater-cores sit side-by-side in a panel in a large radiator/pump combo box that the computer sits on top of, but I made the box fairly modular so I can change its configuration fairly easily.

So the question specifically pertains to my scenario. Will it be better to do:

1) Create separate plenum chambers for each radiator and have 1 fan acting on each radiator.

2) Put both fans in parallel sucking (or blowing) through both radiators. Basically the same as configuration 1) but without the plenum chamber separator

3) Stick the radiators in the middle of the box and have 1 fan at each end of the box and do a push-pull job.

07-07-2003, 06:40 PM	#9
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	Okay, the deal is this. I presently have a large 25cm house exhaust fan driving 2 x Camry heater-cores. I've discovered that house exhaust fans don't like running 24/7, and after about 6 weeks the fan is giving up the ghost slowly (spinning slower and slower). So I have 2 x 15cm Comair-Rotron 210CFM beasties on the way. The two heater-cores sit side-by-side in a panel in a large radiator/pump combo box that the computer sits on top of, but I made the box fairly modular so I can change its configuration fairly easily. So the question specifically pertains to my scenario. Will it be better to do: 1) Create separate plenum chambers for each radiator and have 1 fan acting on each radiator. 2) Put both fans in parallel sucking (or blowing) through both radiators. Basically the same as configuration 1) but without the plenum chamber separator 3) Stick the radiators in the middle of the box and have 1 fan at each end of the box and do a push-pull job.