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Originally Posted by MMZ_TimeLord
I think I'll stir this up a bit with this question... 
If one pump and one loop (basically) in your systems works okay... what if you put TWO loops and join them at a reservior with two different pumps one for the radiator loop and one for the cooling loop (CPU block, GPU block, HD block, etc.)?
Would a differential in flow rates of the two loops to compensate for the different surface areas in each set of thermal transfer devices increase performance? |
I read through the rest of this thread and saw no response to this question. I am curious, too. I am new here and have been lurking, absorbing and filtering knowledge and twiddling with some design ideas for my first WC rig. I ended up here because there are fewer obviously wrong thinkers here. Y'all at least have the grace to keep your wrong thoughts more subtle than some of the other sites and forums
I am not the sort to jump into the pool halfway, so I plan on lots of flow restricting components as I go overboard with a fully WC setup, and over-engineered at that
! I like to get my ducks in a row before lots of time, money, and materials are expended, and do my best to ensure a satisfactory result. I've learned a lot lurking here, but I've got more to learn before work begins in earnest. Pardon my n00bishness :shrug: .
I've seen MMZ_Timelord in another thread talking about pushing pumps into a resevoir with a common outlet. I don't think pushing disimilar head pumps into a tank will work, there's the matter of backpressure to consider. If the pumps weren't exactly matched, wouldn't the smaller head one be fighting against the load of the difference and actually backflow if the rest of the circuit past the push tank was more restrictive than what its remaining capacity could handle? In other words, the system could not be more head restrictive than what the lower rated pump could push, and the lower head pump would be under greater load. At least that's my n00b guess.
I've had a similar thought, though, except rather than pushing multiple pumps into a tank, I envision feeding multiple pumps from a common resevoir. The resevoir will be tall, and the feeds staggered low so that gravity and some baffling will minimize pump competition on the suck end as well as promote turbulance for the inputs to the resevoir (both for air and heat exchange, see below). I was figuring on two pumps, but now I am wondering about three...
What would the effect be of having a separate radiator circuit fed from a common resevoir as other circuits? A pump running just the radiators should get a better flow rate through them than in series with other head-robbing components, and the other circuits a better flow rate without radiators (or with less restrictive radiators, did I mention I like to over-engineer?). Would this improvement be enough to cancel out the loss from the coolant-to-coolant free exchange in the resevoir?
Will the fact that we are in a closed system negate my attempt to limit pump competition on the suck end of the feed? Or would this actually be a good thing as the combined draw of the pumps would be helping the more flow restricted inputs? Or would it make them worse by helping the less flow restricted inputs more and cause me to have to tune the inputs to satisfy my anal nature? Or am I in the same problem area that I perceive the push tank to be in because all I am doing is moving the point of push to the other side of the circuit (although I do have 3 ins and 3 outs)?
Well, I think that's enough n00b musings and questions for now. Am I thinking clearly, or am I just another clueless n00b
? Give it to me straight.