What do you think about this engine? Cogeneration house!

[elephant]

Alain G said:

It's a diesel cogeneration!

So, if I understand correctly, the engine turns an alternator which produces current, and with the losses we heat the house: but do we produce more energy with equal quantity of fuel (and with quantity of equal money)

(including diesel engine maintenance costs

[Remundo]

for energy, we produce no more, but we value more (roughly 70J thermal heating for 30J mecha and 100J of combustion).

for the money, it depends ... on the wind

What would be unbeatable is cogeneration with wood waste / cardboard, especially when it is yours.

[Christophe]

MAMO did you make a quick econological assessment of your cogeneration? If you do not value a significant part of the heat, it is better to abstain ...

And the fact that it is air-cooled is quite problematic unless you heat yourself with forced air (widespread in North America but ultra rare in Europe except industrial building obviously) ...

Remundo, we burn a lot of cardboard (shop) and frankly saw the ashes that it makes I am not sure that it is very interesting.

Zavé saw a new gas stirling on the market: the WispherGen
https://www.econologie.com/forums/post149504.html#149504

Not yet seen the prices but a gas stirling I do not quite understand the interest (except the noise can be?)?

ps: when i was in the usa i saw a small 3 cylinder in line diesel on a small mower tractor. I think it was an engine of Japanese origin but not on that date of 2002. Such an engine would be ideal for making a micro cogeneration.

[Remundo]

the ashes, we put them in the garden composter.

but it is less comfortable than electricity, or the fuel boiler, of course!

[Did67]

ps: when i was in the usa i saw a small 3 cylinder in line diesel on a small mower tractor. I think it was an engine of Japanese origin but not on that date of 2002. Such an engine would be ideal for making a micro cogeneration.

I land there. I think that from the "econological" point, a gasoline engine converted to gas would be more advantageous. I offer you the original 3 cylinder Daihatsu of the C1 ??? In my car, it runs (very well) on LPG but I read somewhere in a review that an "green" municipality in Austria had made a biomethane version ...

Good, but that's my contribution: be careful with small Diesel without FAP, it's far from being ecological!

[Alain G]

These Chinese engines are very heavy 200kg so surely not very noisy, moreover all the parts are replaceable, shirt, crankshaft and all the parts are available for a very low price.

We can see on the video that this system is installed in America and the engine heat is used to directly heat the room where it is, the exhaust components are not welded and should be welded to avoid poisoning its inhabitants but a monoxide detector must be installed there.

We can also see on the videos of the same guy that the exchanger is very effective since a plastic hose is used to evacuate the gases without it melting.

[Christophe]

I land there. I think that from the "econological" point, a gasoline engine converted to gas would be more advantageous. I offer you the original 3 cylinder Daihatsu of the C1 ??? In my car, it runs (very well) on LPG but I read somewhere in a review that an "green" municipality in Austria had made a biomethane version ...

Good, but that's my contribution: be careful with small Diesel without FAP, it's far from being ecological!

Did67, there are 2 things to distinguish: NGV (natural gas) and LPG (butane propane).

a) Converting diesel to CNG is not for everyone.

However, this is what must be done to obtain a gas engine as it is used in industrial gas (and biogas) cogeneration if you really want good mechanical efficiency.

b) Making cogeneration with LPG / Butane Propane is an economic nonsense ...

So question: is it possible to fuel an LPG engine with CNG (methane)?

Properly yes (CNG octane = high) but the injection card would have to be recalculated.

In all cases: the current automobile engines, type C1, are too powerful to be used as a domestic co-driver! A C1 HDI engine running at its minimum CS point, say at 60 Hp mechanical, will release 90 to 110 Hp in thermal form. It's still 100 * 0.74 = 74 kW of heating power to "use"! The engine I saw was supposed to make 10 to 15 mechanical hp.

[I Citro]

Did67, there are 2 things to distinguish: NGV (natural gas) and LPG (butane propane).

... So question: is it possible to fuel an LPG engine with CNG (methane)?

Properly yes (CNG octane = high) but the injection card would have to be recalculated.

The manufacturers of CNG kits are often the same as those of LPG kits.

Only change:
- The tank at 200 bar with CNG versus 8 bar with LPG
- The CNG pre-regulator (nonexistent with LPG)
- The injection computer because the combustion diagrams differ somewhat ...

Well, I went to see yesterday, the new CNG pump which will soon be in service near my home.
When the prices are posted I will have to do some calculations ...

[Did67]

b) Making cogeneration with LPG / Butane Propane is an economic nonsense ...

.

1) Power: yes, I hadn't calculated; it is the reference to your 3 cylinders seen in the states which made me react and which baffled me ...

2) I was not talking about LPG for the cogé, but gas (propane in tank for example - why pay the taxes when you do not drive on the roads?). I just wanted to say that the 3 cylinder petrol should be able to easily be adapted to gas since mine is LPG and runs very well. And it is much cleaner.

3) Why Diesel cogeneration would be possible and not gas / petrol engines ??? Explain to me. I don't find any reason so obvious ... (gas for heating, not taxed TIPP, of course).

And it would be much cleaner! Have you ever seen these little Chinese Diesel cars spinning and what they spit ???? (they are very frequent in Africa where they drive pumps, mills, etc ... with always a small cloud of particles at the exhaust!). Green disaster, but indestructible, it's true!

[Did67]

[

- The tank at 200 bar with CNG versus 8 bar with LPG
..

Only if you want to be mobile, to hold a lot of gas in a small volume.

For cogeneration, you will use your town gas directly from the meter. So Christophe is right, the LPG, that would be stupid.

Otherwise, you can use a "gasifier" (or flexible tanks at the outlet of the biomethane stations) in the case of cogeneration (in the countryside ...).