Quote:
Originally posted by bigben2k
I'm glad I could liven up your morning
I just mentionned it, because I hadn't seen it anywhere, and because I never looked at it that way before. It was specifically about recoverable vs non-recoverable pressure drops. The friction losses are an add-on (where it applies).
It might not be relevant to anything, but it's there... It also relates to Radius, as I'm looking at trying to implement a jet (or jets), but my solutions always seem to end up into (mostly) recoverable PDs.:shrug:
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Try a pump with a stronger head. I just got done trying out my new block with a single 1/16 jet. It simply was to restrictive for the pump. 1/8 seems to be the limit for my pump. 3/16 is ok with 1/4 being a little to much. So anything between 1/8 and 3/16. With multiple jets, the total orfice area of the jets has to be within that 1/8 to 3/16. Doesn't give you much to play with but your limited to the head of the pump which isn't all that great with these aquarium pumps.
I like to try a Iwaki (that the name?) with a nice head that uses about the same amount watts. When I tried the faucet trick that had about 50 psi and the same constant water temp as ambient air , the gains were great with a 1C difference between idle and load. Total 5C delta. Finding a pump like that without putting it's heat into the water to negate the gains is probably impossible.