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Based on Todd’s correction of the earlier unbelievable numbers
on current drawer, you can expect somewhere in the neighborhood of 35-40 amps
continuous for 25 gpm of flow (which is believable) – if the pump will produce
that much flow in a real cooling system. That’s based on the pump power
going roughly as the square of the flow rate.
Hi Al,
In the data, Todd gave the
GPM flow rate for several conditions. It appears there's no way to get
close to 25 gpm of flow with the DC EWP. The good news is that it must not
really be necessary, because Todd has flown quite successfully with only one of
these pumps, and the Ford evap cores.
Cheers,
Rusty (hopefully not
misquoting Todd anymore)
I've reposted the flow measurements along with this post with
the incorrect current draw deleted. I hope this clears up any confusion about
EWP current requirements. I
I
ran the first test with the Ford evap cores in the system, plumbed in
parallel.
· Max flow 9.3
usg/m 35 l/m
· 12.07 volt
battery supply
voltage
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