[TR] Engineer type question
Jeff
fishplate at charter.net
Sun Apr 6 13:39:43 MDT 2014
On 4/6/2014 3:14 PM, terryrs at comcast.net wrote:
> A pusher fan mounts in front of the radiator. On the one hand, it adds airflow at idle. On the other hand, it restricts airflow by blocking the radiator at speed.
>
> So...question. What is the difference in airflow for a pusher fan at 1360 CFM, compared to airflow reaching the radiator (properly shrouded) at 70 mph? Would 1360 CFM be a net gain or net loss?
70 MPH is just a tick over 100 feet per second. So, that's 6000 feet
per minute, times the effective area of the radiator. Even if it's just
one square foot, you have a potential 6000 CFM available. Other things
come into play at those speeds, though, but it seems safe to say that
there's sufficient air flow available...
Jeff Scarbrough
Corrosion Acres, Ga.
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