Running a small engine on household biogas using "brickage' for gas pressure 2

In this video we demonstrate our successful trial using 4 and 6 bricks as the source of weight to create the pressure to fuel our converted two stroke engine/generator to run on biogas made from kitchen wastes. We also experiment with other ways of introducing lubrication oil into the engine. We are pleased to report that a weight of about 24 kilograms (about what an airplane allows you to carry in your luggage, so think a suitcase worth of weight) is enough to keep the generator running. Thus there is no need for any kind of pump or compressor such as we showed in the last video. That simplifies things a lot and makes home biogas electric generation more and more affordable and useful.

[@galennordland8074]

Commendable 'pioneer spirit' Thomas! I hope you continue to explore and learn new methods for biogas applications. Thank you for sharing your findings!

[@URAconstructor]

Nice job so far. I would have to recommend that you introduce a fail safe to your project. It is true that you are dealing with a small amount of gas, but you are sharing ideas. I believe you should include safety as a vital part of your design, in the event someone should use what you have learned and increase the scale.

[@insAneTunA]

Awesome d3, I was hoping for guys like you to be interested in what Mr. Culhane is trying to do here. And to Mr. Culhane, I have very much respect for what you are doing, and in a modest way I try to get some attention for your work so here and there. You might not feel like a hero, but people like you are a hero to me. You are a true source off inspiration to keep faith in the goodness of mankind. Greets from the Netherlands, iT

[@gorgeousdzastr]

I really love the video and your use of unconventional means to produce the gas. It shows the 'world' you don;t have to have a billion dollar corporation to design, construct and maintain sufficient gas production. The crude way of making this, makes it simple enough so a 'junk man' could make one from his back yard. Since I am no 'junk man' I need to acquire similar items from the scrap yard. Great video brother!

[@tculhane]

Thanks insAneTunA, you keep us going with your kind words! Thanks for the vote of confidence. Your experiments are an inspiration to me to! My next step is to see if the flashback arrestor is going to compromise engine performance by acting as a pressure restrictor, and how many more bricks it will take to compensate.

[@toppervergara]

I have worked with lpg and gas regulators at my past work as a mechanic. I think that if you partially close the choke of the carburetor you will trick the regulator to feed more gas because a vacuum is needed to operate the diaphragms of the regulator more vacuum more fuel

[@ShannonWare]

Rich in ideas, with the Mother of Invention always giving gifts!

[@rodrigomillan8483]

Your the Man Brother , your doing my dream , I don't know if you will get this message because the feds do nothing but hate on me , but one way to increase your pressure is to use springs inside the tank , a cheap and way to get high pressure free , with out using energy.

[@newtonbower4455]

love what guys are doing... awesome passion for knowledge

[@highlandscoutrider]

You have done an excellent job. I make my comment with this experience, thank you;-) ...I lived about 18 years, 2 miles off the public electric lines. We used 4 solar panels with battery storage and a gasoline generator for backup. With only 4 solar panels, as the children got older, in the long, snowy winters we used the generator a lot. ...With about 70% of all the food that our 12 species of animals ate... coming out the rear, ready to make this fuel, our gasoline bill could have been lower.

[@IlluminatedWhiteGuy]

Simple solution, find a 4 stroke generator with an oil filled crank case. That would solve your need to inject oil into the fuel...

[@Trappokolo]

I am still in love with your efforts in this channel, I see you just came back from Nigeria( quite a heck of a place to preach sustainability and environmental safety) yes I think I can say that because I am a Nigerian/German . in 5 days I will be starting similar awareness projects in Nigeria and would like to keep in touch with you. Thanks in advance

[@joelyboyblue]

everyone should do this, bloody brilliant

[@EuroVideoProductions]

In response to this video I am inspired by this guy and I am planning to try this and we should all find out a better way that crude oil.

[@tculhane]

Thanks so much masterix6! I just ran some trials using the tank of water so I can vary the pressure and it works great so long as the height of the telescoping gas container doesn't rise too high (at which point it bumps into the support cage; and if I remove that it will topple over).

[@masterix6]

I love what you did. It gives motivation to those trying to make projects work. I am humorous and I can't resist though... Its nice to see that kitty was your captive audience. Very cute!! I was praying things wouldn't explode on kitty. EXCELLLENT PROJECT. Here is a suggestion though. Try putting a tank of water on top of the gas cover to give a more even distribution of weight to replace the bricks. It also would allow you to continue adding on more pressure by allowing water to flow in!

[@tculhane]

Thanks d3adp001! We do have the trifuel conversion kit for the 4 stroke engine from propanedashgeneratorsdotcom and we will use it in Cairo next month -- it is, as you know, a lot easier to do the conversion (no carb drilling necessary) and of course the lubrication problem isn't there. But the 4 stroke costs 230 Euro while the two stroke cost 80 Euro and most third world engines are two stroke so we thought we'd give it a try! We want to figure a way to help the trash recyclers in Egypt.

[@reytdhfuytf]

Hi really good to see people doing this sort of thing, hope you get the oiler sorted out. You should not try to oil the engine through the plug hole because the oil is very important to the crank and con rod bearings, and this will not reach them.Maybe a 4 styroke would be better, you could pick an old one up on ebay for not much more than you spent on your oilers. Keep saving the planet.

[@Col_Eddington]

When running propane in my 2 stroke bicycle motor I put on 2 carbs one which came with the gas regulator and the other smaller one came with the motor. I bought a Y spiter to allow 2 carbs and run an iol rich 12:1 in one and methane in the other compensate for the inability to mix oil with the gas phase methane. (A) carburetor- adjust oil+gasoline mix, (B) carburetor/regulator, C a way to mix the output A and B before intake. The gasoline acts a well distributed delivery method for lubrication with enough.

[@TheRizz701]

Very helpful, Thanks for sharing :)

[@Commissarius]

This is awesome, when a disaster hits I will be able to have a dim light for 30 seconds

[@IMA69R]

Using CASTROL MAGNETEC OIL is negatively charged oil. HINT: - 4 STROKE Engine is the BETTER Alternative, as it has a OIL SUMP. Excellent achievement, so far. Keep up the initiative

[@madjimms]

You could connect the generator to an inverter (or just two male power ends) & reduce your power bill by quite a bit! If I ever own a house I WILL try this out for sure!

[@tculhane]

That is a great idea! Thanks, I'll look into that. If you have any further info about the adaptation please do share with us!

[@TheMountainfarmer]

I congratulate you on your efforts in the practical application of biogas. To eliminate the need for oil altogether I would suggest using a 4 stroke engine. I believe you will find that it will run cleaner and give you longer run times and engine life. Keep up the good work.

[@iliacht5]

Very nobel effort tculhane. I however would not think of using biogas as direct feed for whatever engine. At least not without some high tech chemistry purification. I am very new to the field but so far I learned that biogas is comprised by many components. To what I learned it includes 30-40% CO2, 5-10 Hydrogen, 1-2% Nitrogen, plus what was mentioned as water vapors and some Hydrogen Sulphide traces. So I am thinking for usage for heating in a greenhouse or whatever heater or for just cooking.

[@DrDubem]

I think it's best to redesign your bioreactor and try to put into consideration a higher H:D ratio. Also allow the process to run for a considerable length of time for enough gas to be produced, that way the gas pressure in the vessel will drive the delivery to the electric generator. I am also pretty sure that since you use bricks to hold the reactor lid, you lose some amount of gas produced thereby causing more harm than good, try sealing the lid completely.

[@TruckinMike1965]

For drying use an inline desiccant drier found in airconditioners and air compressors $10. Or build your own drier so you can change the desiccant material - both can be purchased from an A/C or industrial suppliers.

[@ImranAhmed221]

Really enjoyed the demonstration. I am trying something similar but with a larger fixed dome cow dung biogas digester. Having problems with excessive water condensation in the gas pipe which might be helping remove C02 but actually gets into the engine. I hope you will post updates. Good luck and thanks for sharing!

[@tculhane]

Hi deiseldes1, we have successfully adapted and run a 4 stroke 6.5 HP engine/generator in Cairo using a 190 dollar kit from US Carburetion (in West Virginia) that took 15 minutes to install. 4 stroke engines, as you know, are self lubricating. However the water vapor in the biogas did make starting difficult as these engines are more finicky than 2 strokes. And we eventually broke the spring on the pull start trying to start it so many times. But 4 strokes are the way to go.

[@sinkorswim4867]

Brilliant!

[@tculhane]

@dnndirty74 You are absolutely right, we don't need the regulator. In our trials in Egypt a couple of months ago we bypassed it completely. We keep it on the engine here in Germany and in Cairo in case we want to switch to an NG or propane cylinder, but don't need it at all for the biogas. Since it came with the kit from US Carburetion for trifuel use I just assumed we needed it at first, then discovered, nope, no need at all! Thanks for bringing that to the attention of those who may b watching

[@77LionTree]

Black paint on the tank , a mirrored floor and side circumference cage, a glass ball on a pole at the top and center of the tank to redistribute the suns light equally around the mirror cage should boost some energy by quikening the release of the gasses. Sacred geometry of the positioned mirrors to center the Suns power should help the harmonics of the light to focus the heat to upwell the gas from the solids and liquids in the tank. Just thoughts.

[@iliacht5]

From sites where it has ben used for cooking I could see some suggestions that water vapor can be removed by running it from bottom to top through a sealed tank half full of water. So you it woul buble and eventually the vapor would condensate within the water and then you catch it after bubling (or it might catch more vapor). It is also said that this removes some CO2 . Also they mentione that some steel whool put in the pipe would catch whatever components cause citchen pots to get burned.

[@MarcelLENORMAND]

"English Engineer"!? LOL! ROFL! Man, you're funny!!! - Anyhoo, well done with all of this. Excellent progress. I'm not able to put stuff together on this scale for now so it's really encouraging to see you're progress. - I'm still intrigued by the cold loving 'chilly-phillic' bacteria - and to know how they'll perform in our colder climate. Where can we get these things? Mail-order!? Or can your friend-with-no-eyebrows bring a few over in a jar?

[@SivaSankarduke]

Make the gas from the digester comes through the water, when you do so the impurities in the gas is reduced, in addition to this use a vehicle tyre (tube inside the tyre) to store the gas it will act as a pressure regulator and the water molucules if present in the gas will settle there..

[@laowoodley6165]

how does the gas flow into the tyre ? what fittings do i use ? wouldn't the tyre when filled to a point.. start restricting the gas entry ? just asking .. would like to try this at home.

[@vh6356]

@@laowoodley6165 did you ever try it??☺

[@kreynolds1123]

You need pressure to move gas from the biogas digester, through your pressure regulator and to feed the electric generator. Pressure is weight or force / divided by an area. In Your case you are reporting that 24 kilograms of weight is giving you enough pressure but your missing over what area. For instance 24kg/km^2 vs 24kg/m^2 vs 24fg/cm^2 each result in very different pressures.

[@paulishism]

If it's an IBC then the area is probably about 1 square metre.

[@justsawing]

The bell system is able to be used in a better fashion by changing your design slightly. A tall bell that has a counter weight pull system to make the bell equal a low weight is great. When the bell is at its top (Full of methane) the counter weight is reduced and that pumps the gas into a storage container. This weight system can pump higher pressure and is capable of pumping through a filter for better gas. This give you a pumping station that allows tanks installed on equipment and such.

[@tculhane]

Hi Neomorpheus (is the name a reference to the matrix? I took the blue pill I think!). The answer to your excellent question is that the regulator is necessary for... for... for NOTHING. We thought we needed it but we don't. It comes in the kit for people using propane bottles with their gensets to lower the pressure. Then a regulator is needed. For biogas it isn't, so we have since removed it. Using a valve to regulate flow is the only thing we use now.

[@tculhane]

So what I've done is implemented your suggestion and then run a tube to let the gas go to a water displacement tank for storage so that the telescoping bell doesn't have to rise any higher. Will be posting a vid of it soon. Thanks again!

[@tculhane]

Rather than running a light bulb directly (which would be a terrible waste of the 2Kw the engine produces) we get approximately 45 minutes of electric generation out of every days' production of 1 cubic meter of gas. This is enough to charge deep cycle batteries (even more reliably than 5 hours of photovoltaics) which can then be used to run several bright light bulbs for several hours. So in a "disaster" it is quite a robust solution. Meanwhile, we use our gas every day for cooking.

[@tculhane]

Thanks for the comment! We now use a 4 stroke generator to avoid the oiling issue and it works fine (we modded it with a tri-fuel kit from US Carburation).

[@tculhane]

Hi Engineeringtube, Good question. Some biogas does leak out from the gap but it is such a small quantity that we can't even ignite it with a lighter moving around the perimeter. It appears that the methanogens cluster under the gas collection tank where true anaerobic conditions prevail, and it may be that other facultative aerobes in the area where the gap is are metabolising feedstock into CO2. Also, because the feedstock enters the center of the tank the sides may be depleted.

[@wildoxidizer]

I am a American and been doing burning methane gas on my grandpa's farm for years CH4+O=H2O+CO2 which I pump that back to the greenhouse I grow my food Aqauapionicly and food for the cows I talked and shown my science teachers this sense the 1975's and got laughed at... I have not bills and make money of the methane and greens, milk and that

[@tculhane]

In later videos I switched to using a 4 stroke. The oiling the 2 stroke issue made it seem unfeasible for most people so since a 4 stroke is self lubricating it is much much better. I use a tri-fuel kit so my 4 stroke genset can be run on various fuels including gasoline if nothing else is available.

[@franksantander]

Only thing I will point out, besides the obvious genious of this video, is that smoking near gasoline, oil and gas is very dangerous!

[@GameEssentialsTutorials]

No its not, lighting a cigarette with an open flame is. But walking up to the area with it already lit is fine.

[@CharlieTwoShirts]

Thank you for composing this video. I am very much looking forward to putting my own generator together. Might I ask...why not skip the electric generator and just burn the gas directly for light? I am hoping for a very low tech operation.

[@tculhane]

This is a great suggestion vtol750. If I can figure out how to rig this up I will try it. Do you have any pictures showing how we might do this without making holes that wreck things? Thanks!

[@MrTalhakamran2006]

Experts...please advise I am from a rural area in Pakistan. When we built our house there was no sewerage system in that area. The way locals deal with the issue is to dig a deep well which is has brick walls and is sealed from top. Over the years it has built up with just human waste and water used in kitchen and toilets. Can it be turned into a biogas container? Its like 50 feet deep and it was made in 2006. By now I am sure more than half is filled.

[@uramalakia]

You need a scrubbing system between the biodigester and whatever it is you use the gas for. Apart from methane, biogas also contains hydrogen sulfide, which, amongst other things, smells bad and is corrosive; moisture and carbon dioxide. You should run the gas through a water bath, so the carbon dioxide dissolves, and then through a scrubber, to remove hydrogen sulfide and moisture. For the scrubber, you can simply use a U-shaped pipe, stuffing steel wool in the ascending and descending portion of it (to remove hydrogen sulfide) and something like kitty litter pellets on the bottom, to absorb moisture. This should enable you to produce much purer methane, moisture and odor free, that won't corrode any metal components.

[@tculhane]

We appreciate the sentiment and have experimented with those approaches for the last ten years and determined that apart from running engines for our cooking and water heating uses it was unnecessary. We continue to use simple scrubbers for engines as you describe but no longer bother for the stove.

[@secretsquirlPooP]

On the oil issue, have you tried using a gravity feed with needle valve directly in to the carb? or an oiler between the carb and air filter instead of feeding it from the fuel side?

[@saracenjohn]

Great vid! just wondering what the set up was for the pipe for the in going apple scraps enters the biodigester without letting any methane out. Thanks, John.

[@dalsenov]

@Razor4ever ,I know that the german agro equipment producer called BigDutchman has already created a biogas marketable system.The system is a CHP(combined heat and power) system that uses poultry litter and maybe some other litter (I watched only the poultry industry).

[@esnap]

I live off grid and produce my own elect . Often folks that don't really get energy create no appreciable amount of usable energy. A case in point here is that you can't produce enough juice to power that 3/4hp garbage disposal. The best way to use your biogas ( after you have removed the hydrogen sulfide) would to burn it for heat as in cooking. Use solar PV for pc, radio etc, solar for heating bath water, biogas for cooking. In other words use the right technology for the right job.

[@humbertosantos5946]

Hi Thomas. You have done a great job. Thanks for sharing such knowledge with us. Let me ask you something and hope you are still writing comments for this video. Do you have any idea of how many hours or minutes you can keep the generator on with that gas fuel from the digestor?

[@TheRebelmanone]

Thanks for the vid. Did you say you ran out of fuel when the engine stalled the second time? Just curious to know how long it runs on your size bio-fuel generator? This way we can get an ideal based from your setup how many, or how big of a bio-fuel generator we would need to run the motor as much as you want, 24/7, or at least 24/7 for a few days.

[@tculhane]

@akashh1121 Yes, we are trying to catch the H2S by putting steel wool as a filter in the pipeline before it gets to the engine. What we are unsure of is how much steel wool to put in (we also don't want to restrict gas flow).

[@forenamesurname4576]

Awesome idea biogas to run a generator and great efforts. There is one problem with you oiling only through spark plug hole; the crankcase isn't receiving any oil which is really bad its the main part of a 2 stroke that needs oiling. Good luck

[@kerimil]

uhmm ok another suggestion... compress the gas... I've been using fridge compressor for a long time and they can generate pressures of up to 35bars, are really robust and have decent flow (10L tank to 100psi in under 10 minutes)... Just attach the inlet tube to the reactor vessel and the output to a large LPG tank or propane tank... it would be a good idea to add that sulphur dioxide filter between the reactor and the compressor to increase its longevity

[@tculhane]

@hobo59 These are great suggestions hobo59. I've been thinking of them but haven't yet figured out exactly how to make the moisture capture device or the creation of a simple venturi system. If you have any photos or sketches I would be much obliged -- sometimes the mere need to experiment discourages further attempts when one's schedule is so busy. Thanks!

[@reeseht]

Hello there - great experiment - take a look at the Tommey Reed's bubbler (you tube) it might just solve your problem on the cheap - he runs his engine using it. Hope this helps. Jim

[@wiscokiddd]

Six Bricks, at least you figured out that your regulator was holding back the pressure. Nat gas and propane are like only 5 or 2 psi after the regulator. A propane regulator is about 150 psi on the tank end. I wonder who much volume over time you get of gas. Also I tried to make methane with grass trimmings and things to no avail yet, so the particulars of your method of biological digestion to produce the gas would be interesting. Thanks WK.

[@jesselyon9142]

add caw manure, it still has enzymes that break things down. it continues to digest the new grass

[@jesselyon9142]

cow*

[@ppsjsh]

do u need a flash back arrestor with this? could it be used as a torch or stove? thanks

[@joaoncr]

Amazing. Where did you plug the inlet gas?

[@TheQuinton475]

have you ever tryd using a 4 stroke ingean in sted of the 2 stoke or doese the 2 stoke have more compresion in order to run the bio gass i know of a man who runs his moters on wood smoke but he needs to use bigger injeans like a v8 or v10 works better ive been testing it on lawn mower injeans it seems to work fine as long as i have the smoke and air mixture right

[@MrBigbmcc]

use an 500 gal propane tank to put the bio gas in and put a glass gauge on ether the front or side of the tank so you dont over fill it plus put a hach on the end to clean it out near the bottem

[@joelyboyblue]

hey how would you collect then compress it into a tank? methane/biogas is very similar to CNG or propane when running a car. Since some homes also are heated with gas furnaces, Could you also use it to heat the house?

[@TheWaterman1000]

Where you able to get an in line oiler to work right. I have a 2-stroke sitting in the garage to use as a project.

[@dereksimenac8844]

make a water column tube and watch for about 10in/wc. there are conversion kits that converts the gasoline tank into and engine oil reservoir with a automatic feeder valve that opens with engine vacuum

[@Seamus449]

As far as food waste goes, I think that using apple scraps is a great way to go. I'm basing this assumption on my experience with fermenting cider. Apples seem to produce more methane than any other fruit I've fermented in the past, so much so that I have to attach a gas mask filter to the airlock! When fermenting cider it's important to add trace minerals in order to achieve high attenuation. Have you tried adding other kinds of food scraps of diversify the nutrients available?

[@sof2300]

Seems very nice installation. What's the performance ? How many watt for how long for how much organic material ? I am planning to make one

[@farmsidney]

Professor, how you lost weight. I'm surprised. But now it got better as it is more saldavel. So I'm still looking for the parameters I automate my small biogas generator. I'm looking at the core temperature, the system pressure. What would be another sensor or parameter needed?

[@neomorpheus05]

Great video! Just wondering what the purpose of the regulator after the biogas output if the digester and before the biogas generator. If you could explain that to me, that would be great! Thanks!

[@rontam4842]

Thanks for your video. So how long did the gas last for in running that generator and how long did it take to produce that amount? Is it worth the time and expense?

[@arpedac]

veri nice videos ...we are Cameroonian base association, we promote sustainable and alternative energy to community to reduce poverty and improve life standards please provide us with the details drawing and how to modify a diesel generator to use gas thank you

[@TheDave570]

If you use your bricks to force your gas into a large tire inner tube you will have the pressure you need because the inner tube will expand as gas is pushed into it !!!! Also they make for great storage!!! If you are using the regulator it shouldn't matter about the number of bricks as long as you observe the regulator inputs !!! Also you can just feed it into the machine without the regulator using a ball valve to regulate the input into the carb!!

[@kerimil]

@tculhane it works exactly like water separators for compressed air... hell you might as well get one

[@donaldsmith3048]

There are 4 stroke engines that are made for natural gas that should work good there. They are made to work on natural gas that is methane!

[@tculhane]

First of all we live in Germany (where, by the way, we all have health coverage and where we remain the economic growth engine for all of Europe despite the problems of Greece and Spain, and where we know what we are getting for our taxes and are happy for the protections we've built into our economy and where we have the power to phase out nuclear energy completely as well as coal because we have invested in our renewable infrastructure, and sophisticated distributed generation.

[@justintanner60]

would it be alot easier to run a 4 stroke motor?

[@slaliam]

thank you for your nice sympathic project and for your anthousiasm if you permit me, just add a pressure measurment, lilltle hole + screwer and put it there, so you can read directly your pressure at the outload, and always write it in a book, so you will control much better your experience and a ph metter for your digester, it must indicate a ph of 7 sign that your bacteria in there are really happy to work for us

[@cbzombiequeen58]

where did you get the regulator? that regulates the pressure, right????????????

[@delbertigam3654]

sir can i ask the idea how you connect the biogass hose supply to the carborator of engine

[@spanner1972]

Great video guys. Not sure if already mentioned...but to overcome you oil injection issue have you tried using a small four stroke engine. Own lube supply...no more probs??? just a thought

[@BurkenProductions]

What are the bricks good for other than weighing down the lid??

[@gaijingaijinforeigner6474]

Excellent video guys...! It's cool to see you getting a 2 stroke to run on methane...! I wonder if somehow running oil via a second line through the engine could be done simply.. I heard somewhere that 2 strokes are essentially Diesel engines, not sure, but if so..( it'd certainly explain the mixtures they use.. I guess..) it might not neccesarily be needed to run ( for short times..) both oil and methane... What if you had a 2 way valve on fuel line, and ran biodiesel or SVO...( cooking oil ) and the gas alternately say 30 minutes each,..? I mean, you could, because ( assuming til run on bd/ SVO ) then you could be sure it's getting lubrication some of the time at least, right..? A 4 stroke diesel, would Definitely run on SVO ect, and I am guessing might have less issues with lubrication, too... ( might still be a problem at the " top " end of the engine, but smaller volumes might cover this risk..) ( sorry, not a mechanic, so I am only going by what I heard.. ) Anyhow, congratulations on getting to run, and good luck to you guys.

[@tculhane]

You can use any 4 stroke engine. The easiest thing to do is buy a trifuel kit for 190 dollars from US Carburation, it takes 20 minutes or less to mount between the air filter and the carburator. Done.

[@vicariouslythroughadrone]

I was wondering if you could get a louder generator, I can barely hear that thing.

[@kiekkrse1]

Hey, have you researched using inner-tubes to harvest the methane, and then also pressurize the system? This gives enough pressure that you can effectively use the regulator

[@bluemoondiadochi]

i'm so looking forward to going to Germany to study! 0.0

[@harishkumarbharathi2075]

I have a doubt , I need to run my 2stroke petrol scooter engine by using the biogas can I do this, say whether it is possible.......

[@neomorpheus05]

I was considering building a similar project in which the methane output from the digester could be converted to energy/electricity. In the video you are using some type of generator that functions off of the methane gas output. What is this generator and is it possible to purchase one commercially? If so, where would I be able to purchase one?

[@tculhane]

It doesn't -- I injected the oil in the spark plug hole. So I had to abandon using my two stroke because of the hassle and uncertainty and bought a four stroke instead which works fine. People wrote and told me ways to get oil in to the two stroke but i never had time to experiment. I tried an inline oiler but it didn't seem to work.

[@TribawanKaul]

great going - german precision- i am sure you will figure out a way to smooth things out. thanks i learnt a french word " ricolage"? A similar word exists in India -Jugaad- but i hope it soon turns to something more sophiticated.;

[@douglaswindsor120]

I never could figure out why you have the garburater in one area and carry it to the digester why not have it close and plumb it to the digester

[@adamklam1]

or do you think that's only nessicary when using indoors for cooking fuel?

[@aibeatboutique]

its good thinking But you can do this for better result : bump the gas into a water filter first then into a air compressor(you can use a refrigerator motor as compressor ) into a gas tank and after that you will get very good result >>> keep in mind its not a sempel operation an you need to take all the safety majors befor doing it

[@kf4dcy]

just use the two stroke carburetor to feed the engine it's oil. rejet the carburetor to suit the engines needs. if you can't find jets the small. fill the jet with epoxy. then find jet drills and step up the size of the drill till the spark plug looks right.

[@tculhane]

Marcel, I'll get you some Psychrophiles when I come back from Alaska in January. I'll bring them to Germany in a bag of mud, then you gotta figure out how to get them across the Channel (I find British cutoms to be hell -- they interrogated me for half an hour for bringing a small guitar in to the country asking "are you going to try to illegally busk with this?" What?! :)

[@1388dela]

Hi there. Look, i´m from Mexico and in my school we are working on an small biogas generator. It is an small engine, 2Kw. The question is how can I introduce the biogas into the engine and if it´s necesary to realize some kind of proces to the biogas before geting into the engine. Any coment will be seriously apreciated. Thank you so much gracias