outlet pipe?

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outlet pipe?

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27 February 2021 at 16:22 #93964
Terry Chapman 2
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@terrychapman2
Hi,wheres the best place to position the outlet pipe for my water cooler,above or below the water line etc?

Thanks
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27 February 2021 at 16:22 #2995
Terry Chapman 2
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@terrychapman2
27 February 2021 at 17:57 #93968
Richard Simpson
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@richardsimpson88330
If it is above the water line you always know it is working!
27 February 2021 at 19:34 #93972
Malcolm Frary
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@malcolmfrary95515
The real thing might have had its outlet below water, but you probably want to let your viewing public know that you have working cooling.
27 February 2021 at 21:40 #93979
Chris Fellows
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@chrisfellows72943
Would it work under water anyway?
28 February 2021 at 07:53 #93980
ashley needham
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@ashleyneedham69188
I would think so Chris, the water is coming out at pressure so unless the outlet was REALLY deep, the water will come out.

Ashley
28 February 2021 at 11:23 #93982
Richard Simpson
Participant
@richardsimpson88330
If you angle it in a rearward direction underwater to create a little reduction in pressure at the exit or put it just behind the propeller you can force flow through the cooling pipe at a greater rate. I once did that with a boat and had the inlet facing forwards and the outlet behind the prop without even bothering with a pump.

There are many however who would also suggest that, if you get the motor, battery and propeller correct, that you shouldn’t require cooling, unless it is a very high power set up. As usual you cannot beat experimentation and buying yourself an infra-red temperature sensor is a worthwhile investment for such a trial. Hammer it around the pond a few times under deferring conditions and immediately take a reading of the motor casing. Let it cool back to ambient and then try a different set up. You may even surprise yourself!

Edited By Richard Simpson on 28/02/2021 11:25:03
28 February 2021 at 12:31 #93984
Chris Fellows
Participant
@chrisfellows72943
Yes, that's what I'm aiming to achieve with my builds as far as not requiring cooling is concerned. Also going to use ESCs rated higher than strictly required. Apart from my race boats (two of which are water cooled) I don't tend to run at high speeds continually and the speed is varied so I should be Ok.

Chris
7 March 2021 at 11:57 #94102
Chris E
Participant
@chrise
Posted by Richard Simpson on 28/02/2021 11:23:54:.

…………………………………. As usual you cannot beat experimentation and buying yourself an infra-red temperature sensor is a worthwhile investment for such a trial. Hammer it around the pond a few times under deferring conditions and immediately take a reading of the motor casing. Let it cool back to ambient and then try a different set up. You may even surprise yourself!

Edited By Richard Simpson on 28/02/2021 11:25:03

unless it is a brushless outrunner. in which case measure the temp of the bit of the motor that doesn't move. The heat is in the coils & not the case

Edited By Chris E on 07/03/2021 11:58:25
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