Any one using Natural Gas for their car.

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Re: Any one using Natural Gas for their car.

Postby Smurf1976 » Fri Dec 28, 2012 11:23 am

Therein lies the problem with most of these alternative transport fuels.

It can work for a council where the trucks all go back to the depot every night and aren't likely to ever travel outside the council's area (which for most councils is a manageable geographic area). Likewise it can work for city bus fleets etc for the same reason.

Also, in those cases there's an element of "give it a go and see what happens" about it all. The council can probably live with it if they end up with a couple of under performing and/or expensive trucks. It's only going to be a couple out of however many are in the fleet so it won't kill them operationally or financially. And of course it "looks good" for local government to be supporting alternative fuels too.

It's a very different situation however for vehicles in typical usage which do venture quite some distance from "home" to places where gas (or any other alternative fuel) isn't available.
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Re: Any one using Natural Gas for their car.

Postby marmelada » Tue Jul 30, 2013 6:49 pm

My friend and me are using natural gas in GMC savanna for couple years now. Pretty satisfied if talk about driving and fuel, but not happy about changing parts too often :shock:
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Re: Any one using Natural Gas for their car.

Postby Tracker » Tue Jul 30, 2013 9:41 pm

marmelada wrote:....., but not happy about changing parts too often :shock:


Dare I ask for elaboration .... what were these parts changes/repairs ..
..
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Re: Any one using Natural Gas for their car.

Postby davidg » Tue Jul 30, 2013 10:32 pm

marmelada wrote:My friend and me are using natural gas in GMC savanna for couple years now. Pretty satisfied if talk about driving and fuel, but not happy about changing parts too often :shock:

Natural or LPG? Natural gas needs to cooled to -166 deg c to keep it in the tank and liquid if your using it for any real distance, if you let if get hotter than that you lose it right through the container at the rate of 3% by volume per day, the molecules are that small. otherwise you can't really store or take much with you. :( - LPG roughly 200psi, tank is not special. :)
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Re: Any one using Natural Gas for their car.

Postby marmelada » Wed Aug 07, 2013 8:53 pm

davidg wrote:Natural or LPG?

Pardon my English, that was LPG. We live in Europe.
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Re: Any one using Natural Gas for their car.

Postby davidg » Thu Aug 08, 2013 12:53 am

marmelada wrote:Pardon my English, that was LPG. We live in Europe.

Tens of thousands of automotive vehicles in Aus use LPG, I use LPG and have done for 20+ years now, I've even installed it in cars a few times as well. Pretty highly regulated now in Aus and with Excise introduced the value of using it is shrinking unfortunately although it's still works out less than petrol at the moment, just nowhere near as good as it used to be. :(
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Re: Any one using Natural Gas for their car.

Postby Warpspeed » Fri Jan 03, 2014 4:30 pm

There are several major problems to overcome with home brewing CNG.

The first is the very high pressures that the gas needs to be compressed to, to fit into a tank small enough to fit into a vehicle. CNG is not a liquid like Propane or Butane, it remains as a very highly compressed gas.

That is the reason why the CNG compressors are so very expensive, three stage water cooled ultra high pressure piston compressors don't come cheap.
Something that nobody has mentioned here yet, is the huge amount of horsepower required to compress natural gas to final tank pressure.
That requires a lot of Kilowatt hours of overnight electricity to fill up your car. The cost of the actual gas is nothing, its the cost of the electrical power required to compress the gas that will probably really surprise you.

I see no reason why a scuba tank compressor should not be capable of compressing natural gas if you wished to experiment. Its really doing a very similar job....

But the Government dont like it. Its not just the fact that they cannot skin you alive for road tax, its the idea of fires and explosions in suburban garages. The insurance companies and the fire brigade don't much like the idea of home made CNG either.

So I guess it will never be allowed, even if it were economic.
It might just be economic for large fleet operators that can get special rates for bulk electricity.
But for the average Joe, out in his garage, its a lot of trouble, potentially rather dangerous, and not that cost effective.

I used to work at the research labs of The Gas and Fuel Corporation Victoria about thirty years ago.
It was all looked into back then, and the politicians took real fright and the whole thing was swept under the carpet and very quickly hushed up.
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Re: Any one using Natural Gas for their car.

Postby nickyp00 » Wed Jul 25, 2018 7:08 am

Hi,
just stumbled accross this forum and was compelled to post. The answer to your question, YES !

I have building a 1991 xd utility for the past 10 years now and have decided due to economical reasons to run it on compressed natural gas. I am however having quite allot of problems int he conversion process of being able to find authorised certifying agents to recomission the gas tanks and find an affordable compressor. There have been a positive developments recently. I managed to buy second hand 3 24 litre full composite OES cng tanks and am in the next coupe of weeks traveling from my home town in Goulburn NSW to Melboune to inspect and if ok purchase a 100 litre ex forklift bottle. Unfortunately they are all out of date and am finding it difficult to get them checked for safety and continued use.

I have been luck to buy a second hand brc fuelmaker 6cfm compressor for home for few hundred bucks. Its an ex agl unit used in australia and am excited about the prospect of fill up from home. I also have an installer who will help with the project and having installed a fuel injected 5 litre v8 engine into my xd ute I have a reasonable platform to all cng injection to the system as it piggy backs off the existing injected fuel management system to work.

I nam guessing people out of frustration here have given up posting in this section as they have stumbled accros the same issues as I have, insanely expensive compressors, difficulty finding people who will certify tanks, maintain the home compressor and install the system for a price that the average john working citizen can afford.

My goal is simple but difficult to achieve. I wish to install the system, get it operational and keep it maintained and then this is the big one. Ever since 1987 when I saw the pop test (hydrogen ignition) I have been fascinated about the prospect of combusting the fuel in a road vehicle. I intend to fill my tanks at least once in my life with Hydrogen and run the vehicle on it. If this becomes impractical then I intend to produce, refine and utilise home made biomethane from organic waste in my backyard. Eventually if I m allowed which is highly unlikely, drill a coal seam gas well in my backyard to supply me with the energy needs. I know this is an ambitious goal but I have been this was all my life.

I realized the matter of urgency n this issue when I attempted to finally enroll for a course I always wanted to complete in lpg and cng installation, repair and maintenance for automotive. Only to find that the course is no longer being run due to lack of demand along with lack of government funding.

This country of ours is so far behind the world it is ridiculous. Right now I can quite easily buy a compressor overseas fit for purpose fr around 4 - 5 grand including changeover rates and freight yet I cant find a single person to provide me with service of the device as required by law, I can buy second hand tanks but cannot have them re-commisioned, I can buy new tanks from the us but they need tobe tested for compliance with australian regulations and noone tests them here.

The whole project is becoming insanity while the electric vehicle enthusiasts move forward in leaps and bounds. I am becoming verry annoyed with the whole situation.
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Re: Any one using Natural Gas for their car.

Postby australsolarier » Wed Jul 25, 2018 10:17 am

My goal is simple but difficult to achieve.
obviously it is not simple.

don't play around with hydrogen.

it might be better putting your energy into electrifying your car.
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Re: Any one using Natural Gas for their car.

Postby Warpspeed » Wed Jul 25, 2018 12:07 pm

I doubt if you will find any industry professional ready to stick their head in the legal noose you are offering.

The Government don't want the public messing around with CNG for a whole lot of reasons quite apart from revenue loss.
If you do it yourself, it will have to be an "outlaw project". And if you do have an accident, and there is loss of life or property nothing is going to save you.
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