Improve the performance of generators

[Flytox]

We will act as if the moderation had been fair and had respected everyone's sensitivity .....

Moderate by Flytox

[jonule]

thanks Flytox,
suddenly I have not read the lessdewatt responses, but I imagine they were just as constructive ...

to come back to the technical debate, and especially on the subject, I do not think that our goal is to improve the performance of a nuclear power plant alternator as you quote or other large alternator, but rather to manufacture alternators for a 6kW type fireplace, do you understand?

so your 3rd link on a hydroelectric generator does not concern us here ...

your 1st wikipedia link is interesting but it cites the big machines, and not the small ones, as for the automotive alternator in the link: the performance is not given ...

the 2nd link you read incorrectly, it is the performance of the synchronous motor and not of the synchronous alternator, hence my question of the reversibility of the performance in original unplanned use;

anyway if an alternator had a super efficiency but planned for the resale of electricity it would not concern us either here, me I speak of machines to make oneself, and I believe that it is + the thread of the subject ?

but this poses the following question: where would be the interest of a superunitary machine if not super-efficient in the hands of an industrialist or a household?

already + interesting ...

[PIEDALU]

Bonjour à tous

jonule wrote

but this poses the following question: where would be the interest of a superunitary machine if not super-efficient in the hands of an industrialist or a household?

Financial interest, zero, I think nothing would change.
The ecological interest would be positive with consequences on health.

Greetings

[swallowtail]

bonsoir a tous

well seen jonule

the performance of on-board alternators (type VL and PL) is catastrophic! (average 50%).
I highly recommend reading this thesis, which is a bit long, but instructive.

http://tel.archives-ouvertes.fr/docs/00 ... 007091.pdf

I am currently testing a GE made from a 24V alt and honda recup engine. (see elctrogen 24v econologie group)
results in progress
swallowtail

[moinsdewatt]

.....
to come back to the technical debate, and especially on the subject, I do not think that our goal is to improve the performance of a nuclear power plant alternator as you quote or other large alternator, but rather to manufacture alternators for a type 6kW fireplace, do you understand? ....

Well, in this case your approach should start to get the exact info on the efficiency of such an alternator, instead of relaying inaccurate information like that the efficiency would only be 30% as was said above. .

For this kind of alternator, I personally have no info.

I'm talking about self-made machines, and I think that's the thread of the subject?

Ah in this case, it's DIY. Do not expect big returns without knowing anything about electromagnetism and magnetic flux calculation software. And have fun.

[PIEDALU]

Bonjour à tous

Thank you for swallowtail link, it's constructive.

Greetings

[jonule]

yes 30% I wanted to say on a car heat engine for example, starting from the 100% starting point that there is in the fuel, in electric transfer, the 70% being in the form of heat,
that's not the way to present the performance, I agree

for DIY, someone who replicated a neogen, formerly a muller:
http://picasaweb.google.com/sellier.bru ... lerParAPOC

today with 3D printers it is possible to produce precision parts for the mechanical model; =)

[mc gyver]

and if we looked at "the beautiful green"? this movie should satisfy you all. alas it's just a movie ....

[moinsdewatt]

yes 30% I wanted to say on a car heat engine for example, starting from the 100% starting point that there is in the fuel, in electric transfer, the 70% being in the form of heat,
that's not the way to present the performance, I agree

If you call "pear" what is an apple, it is sure that no one can understand each other.

30% mechanical efficiency for a car heat engine, yes, that's ok.

[PIEDALU]

Bonjour à tous

I managed to find the document where I had balanced everything:
https://www.econologie.info/share/partag ... fjb6yV.pdf
On page 20 you have the report of my error in blue.

Abundant energy would be a disaster? not sure.
I think that an abundant energy, therefore can expensive is favorable. I take the example of sunlight. Free and abundant, it is invoiced to us in our property taxes of which it is one of the factors of calculation according to the dimensions of the openings of the habitat. So even free energy would be attractive to the economy, it would be enough to charge for it. I also think that clean energy is possible, because the absence of a solution to a situation never was a proof of permanent impossibility.

Surunity does not exist, whatever ...
The expression of a considered energy cannot manifest itself instantly in two different places.
However in an alternator under load, we have, the absorbed power (Pa) opposes the total losses (Pt) and the armature reactance which is the equivalent of the power used (Pu).
Pa = Pu + Pt
At the same time, if the armature reactance (Pr) is equal to (Pu) at near losses; the equation must be written: Pa = Pu + Pt + Pr
This is correct because an induced magnetic reactance is expressed in reactive volts amps (VAR) and its existence requires no energy expenditure.
However the manifestation of the armature reactance is indeed the energy of the antagonistic couple (Pr) opposite to the power absorbed on the axis of the alternator.
I do not think that the useful power can be simultaneously captured on the side of use and captured on the side of the alternator to oppose the engine torque. Because in this case we would have the equation: Pa = 2Pu + Pt and the principle of lapsed thermodynamics.
So, the paradox of physics?
Have we long had effective surunity in front of us?
From what corner of physics, the antagonistic couple of the armature reactance draws you their energy. Because its origin which is the reactance of armature apparently does not require any energy to exist?
What I wrote, is seen by the current use of alternators. So there must be the principle of thermodynamics on the one hand and something else, but what?