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LPG, CNG & LNG - General Info and Issues Share experiences and problems |
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Is a 7 seat 1999 V70 Bifuel (w/tank behind seat) workable?Views : 1371 Replies : 12Users Viewing This Thread : |
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Nov 13th, 2012, 14:32 | #11 |
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Location: Bristol
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Cheers.
I guess the LPG is a bit like cigarette lighter gas; something to do with the partial pressure of the vapour I believe, but it's a long time since I looked into it. |
Nov 13th, 2012, 18:17 | #12 |
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I think the critical pressure of the different gases is interesting to note when comparing lighter gas(butane), petroleum gas(propane) and methane
Every gas has a critical temperature. If the temperature of the gas is over this critical temperature, no amount of pressure, however great, can liquify the gas. Lighter gas(butane) has a critical temperature of 152 Celcius, propane has a critical temperature of 96.6 Celcius. This means that liquefaction of these gases in lighters or in lpg tanks of cars is no problem at normal outside temperatures. Methane is a totally different story, it has a critical temperature of -82,7 Celcius. This means that liquefaction is impossible in a car, only compression is possible. |
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Nov 23rd, 2012, 11:57 | #13 |
Classic P80 1999 BiFuel
Last Online: Jun 12th, 2024 13:12
Join Date: Aug 2012
Location: 48mph Middle Lane M4
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Essentially volvobaggen has it right. With CNG ii is at 200bar. LPG palys at it, with 20 max. Less usually. You can near as makes no differnebnce, put butan/propane in a Baked bean tin. Put CNG in a LPG toroidal tank and you don't have a tank, you have something that will take your street out! And i kid not.
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Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."] |
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