Subject:
[FlyRotary] Re: water cooled matrix in oil pan
<...oil
moves in the channels of the oil cooler at about 20 ft/min ...
oil
entered the pan at one end and traversed across it might be moving
about
½ ft/min ...>
20
fpm through the cooler seems really slow. What is the oil pump output
volume?
I'd have thought something on the order of 10 gpm or so. 20 fpm
through
a foot long oil cooler that holds a quart of oil is only 5 gpm
output
from the pump. Is that right?
Trying
to do the math ... Jim S.
I guess my 30 second calculation is wrong – too low
by a factor of 12 (1728 cu. in. in a cu. ft.; not 144) so it should be 240 ft/min,
4 ft/sec (that’s more like it). It’s a rough estimate for 12 gpm
and about a square inch of passage area. Same factor for the movement in the
pan – about 6 ft/min.
Thanks for pointing that out.
Al