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by dede2002
15/02/23, 19:43
Forum : electric transport: cars, bicycles, public transport, planes ...
Subject : Driving an electric car every day
answers: 365
views: 22663

Re: Driving an electric car every day

Christophe wrote:Had to put a 6V-12V DC converter with the amps that go well at the output of the alternator ... but hey at the time it must have cost an arm ...


We used that to operate the car radios.
But, there have never been 6V alternators... :P
by dede2002
15/02/23, 19:40
Forum : Failure, troubleshooting and repair: repair yourself?
Subject : NUAIR 6 liter compressor (which blows my fuses)
answers: 7
views: 352

Re: NUAIR 6 liter compressor (blowing my fuses)

PhileVieux wrote:...

As it is a brushed motor, there should be a way to uncouple the stator from the rotor. You just have to find a way...

...


Hi, just remove one carbon to uncouple the rotor. : Wink:
by dede2002
28/01/23, 12:10
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

It was just in case there was really no air entering the circuit of the panels. This would not be normal operation for a self-draining system.

I think you have an air inlet in the circuit, ideally air from the buffer.
by dede2002
28/01/23, 11:24
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

6 meters is approximately the maximum pumping (or siphoning) height on the suction side. Above the depression is too strong and the water evaporates.
by dede2002
28/01/23, 10:57
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

... Maybe there is no air intake simply because the pressure drops and the diameters of the pipes are sufficient for the water to fall under the action of gravity? ... How could water sink if its volume is not compensated with air? ... In fact, since the h...
by dede2002
26/01/23, 19:30
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

... What is this story about a fan powered by pumps? :?: :?: pumps 12-2022.jpg On the left, two PC power supply fans in series. Powered by the same relay as the pumps, they turn when it empties. It seems to me along the same lines... It's 24V DC three-phase pumps, and the...
by dede2002
26/01/23, 18:10
Forum : Science and Technology
Subject : We tested ChatGPT: ask your questions here without an account
answers: 230
views: 9796

Re: We tested ChatGPT: ask your questions here without an account

Our five senses have been prepared for a long time. Differentiate a natural fabric from a synthetic fabric. Differentiate a synthetic image from a natural image. As for a sound, an aroma or a taste. Not everyone knows how to get the wheat from the chaff... It's the same for the sixth...
by dede2002
26/01/23, 16:34
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

Christophe spoke about the temperature of the edge of the slab, I still hope that the top is insulated...
by dede2002
26/01/23, 15:19
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

... Maybe there is no air intake simply because the pressure drops and the diameters of the pipes are sufficient for the water to fall under the action of gravity? ... How could water sink if its volume is not compensated with air? In my house, the water goes down...
by dede2002
26/01/23, 09:20
Forum : Science and Technology
Subject : Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?
answers: 451
views: 24639

Re: Thermal buffer: avoid surface evaporation of hot water with oil or other blocking product?

Hello,

I was asking the question of the air in the panels, because at home each time the panels are emptied I have a lot of air bubbles, and I wonder what it could do daily under the wax...?

And it would be interesting to know if it is outside (dry) air or buffer air.

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