Wind and heat

[vinzman]

Hello Grelinette,
why not try that?


heating 300w, 12volts

[jacksparrow]

Well ... well ... I think I'm not ready to warm up with my wind turbine! sniff

So a priori the best way is still to transform the kinetic energy of the wind into electricity and then into heat by the Joule effect? (in summary, connect a convector to the wind turbine)

What is discouraging is that we may look for new simple and effective systems ... but we always fall back on what already exists!

Are there still many brilliant researchers who will succeed in finding new innovative processes, or bringing up to date an old forgotten system?
Do you think, moreover, that it is the last real notable innovative discovery of recent years in the field of ecology?

If you can have 2 kw in charge, the easiest is probably electricity. I understand that profitability is not your goal, but if you have 2 kW at the foot of the mast, you can count on 1,9 KW on your electric radiator. It's viable.
If you use a mechanical system to heat air or water, you are likely to have only 100 W at home.

At the same time, there is a little guy who is agitated in all directions and he manages to heat our ears. Like what energy transport can even be somatized ...

In addition, I myself use a (commercial) wind turbine with a diameter of 1,5 m which produces a max of 500 w. I live on a very windy seaside.

Otherwise, cavitation may be worth considering. It is parasitic on the propellers of boats where it boils sea water.

[kae]

Hello, unearthing of subject in sight because I ask myself the same question.

"If you can have 2 kw in charge"

If we have 2kw electric after a generator at the bottom of a wind turbine, what was the mechanical energy of the wind turbine at the start? This is the big question on heating-mechanical-wind.

If the efficiency of a generator is 80 or 90%, it becomes obvious that an alternator + a radiator must be used. I believe it is?

If, on the contrary, the efficiency of an alternator was less than 70%, one could ask the question of the efficiency of a heating system directly using mechanical energy.

[dedeleco]

The wind energy required is 5 times more and the mechanical energy coming out of the wind turbine depends a lot on the alternator and the mmpt circuits, well adapted or not to the wind turbine ???
This varies between a mechanical efficiency to electricity of 80% to 20%, given certain scams, followed by fine legal trials !!

Diameter of the wind turbine at least 2 to 3m for 2KW, see the suffering of some on econology, for 500W !!

Beware of the strong wind and the downed wind turbine !!

[kae]

Ah, so according to you the question still arises. A mechanical system in my opinion has two advantages: to be self-regulated, self-protected and to have a good efficiency (no need to use the noble energy that is electricity to heat something).

The more the wind, the more it heats (to find if the mixing of a fluid or other is the most obvious). Besides, I wonder if the performance of such an installation would fluctuate. The losses of a system are always joule effects, friction etc. This heats the system in all cases and if it is IN the house, the efficiency is 100%.

[dedeleco]

The problem is that the wind turbine must be very high in the wind and the heating in the house !!
We can always transmit the mechanical force of the wind turbine by gears and rods in the house and put the alternator in the house which then heats an eddy current resistance !!

The oil mixing also works, if you set a setting according to the speed of rotation.

The old water pumping wind turbines may be suitable, wind efficiency around 10%, because they are slow, but good mechanically (gears if oiled which wear out).

[chatelot16]

transform the mechanical energy of the wind turbine into heat, by friction in a fluid ... what works less well is the transport of hot fluid, which risks arriving cold at the place to be heated

electricity is the most convenient way to transport energy with low loss

electrical energy is the easiest to use for all purposes ... a purely thermal wind turbine would be as expensive as it is electric and much less useful

[FALCON_12]

Well ... well ... I think I'm not ready to warm up with my wind turbine! sniff

So a priori the best way is still to transform the kinetic energy of the wind into electricity and then into heat by the Joule effect? (in summary, connect a convector to the wind turbine)

What is discouraging is that we may look for new simple and effective systems ... but we always fall back on what already exists!

Are there still many brilliant researchers who will succeed in finding new innovative processes, or bringing up to date an old forgotten system?
Do you think, moreover, that it is the last real notable innovative discovery of recent years in the field of ecology?

Hello,

Very interesting information on this page on this subject.

https://solar.lowtechmagazine.com/fr/20 ... dmill.html

[sicetaitsimple]

Very interesting information on this page on this subject.
https://solar.lowtechmagazine.com/fr/20 ... dmill.html

Always surprising to see such bullshit come out, when wind power has demonstrated for more than 30 years that its future is electricity, with increasingly powerful and efficient machines.
The only problem is that when there is no wind, there is none...
But it is the same for small wind turbines of an individual nature, which have long since demonstrated their very poor performance both in terms of production but also in terms of service life.
As for those who would like to heat themselves with wind power, good luck!

[Ahmed]

We must remain positive, why not write instead: "As for those who would like to heat themselves with wind power, good courage wind!"