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|10th November 2008, 10:59||#16|
Join Date: Aug 2006
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Do not think that once the car has been thrown around, any of the passengers would in be any state other than shock to even attempt to get out of the car. There was a suggestion that the auto locking of the doors was the reason for them to be burnt alive. I think if the passengers were in normal state of mind they could have used the manual disable of the lock and come out. So all wrong conclusions. Probably it was fate and nothing could have avoided the mishap.
|10th November 2008, 11:11||#17|
Join Date: May 2008
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|10th November 2008, 11:29||#18|
Senior - BHPian
Join Date: Jul 2006
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The word CNG in the headlines is so misleading. Petrol or diesel is also an equally combustible fuel. In the event of a collision, petrol lines could also have been ruptured.
|10th November 2008, 12:05||#19|
Join Date: Apr 2008
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As you say, there are poorly constructed CNG tanks and products in the market, along with many incompetent mechanics. Unfortunately, the quality of work is not very good in India, and there is a very high chance of cutting corners to save a few rupees.
Tutu Dhawan needs to get his facts straight. Neither LPG nor CNG "ingnite" when contacted by air. There has to be an ignition source for either.
What does he mean by Petrol is stored under pressure. This is nonsense. LPG is stored under high pressure. Most of the Petrol is at atmospheric pressure with only a small amount pressurized in the fuel line. The entire LPG system is at high pressure. A flammable gas at high pressure is fundamentally hazardous.
I disagree. There have been many CNG related accidents in Delhi. Actually CNG can in fact catch "just like that". Put it this way, would you light a match if you were within, say, 1 meter of a leaking CNG cylinder? I sure would not. Now, would you light a match being 1 meter away from an open container of Petrol? Probably could with no disaster.
That is why I would never put a CNG kit in any one of my cars. My point in all this is there are additional safety risks with CNG, so be aware of these prior to going in for one of these kits due to the low running costs.
So if you absolutely have to get CNG, keep in mind that the quality workmanship, and product quality varies very widely, especially in India where there are always folks trying to offer products for less money and willing to cut corners in the process. So at a minimum, be very, very careful, and willing to spend a bit extra money to get the safest, highest quality CNG kit available, from a very reputable shop.
|10th November 2008, 14:59||#20|
Join Date: Nov 2008
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I don’t think so that CNG is so harmful. There must be some fault in the engine or some minor spark in the electrical components.
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|10th November 2008, 15:23||#21|
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You completly misunderstand, partly out of lack of experience with CNG.
a. CNG systems are designed to be MUCH more safer than petrol anyday. Or diesel. Honestly, I was SHOCKED to see that my VDi has a fiberglass material tank.
b. Its much safer than an equivalent km ka petrol tank in your car.
PS: That's because you need to compare instances among factory fitted (say santros) CNG versus the aam junta who cut corners every now and then.
PPS: I've worked long enough for an natural gas company, attended enough gyan sessons/informal close chats with CNG engineers, besides three (one sold) cars with CNG in the family.
Last edited by phamilyman : 10th November 2008 at 15:24.
|10th November 2008, 18:11||#22|
Senior - BHPian
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Reason for fire in the vehicle involved could be many. CNG is co-incidental. The impact of crash with truck, could have generated sparks and damaged the Fuel line -petrol and CNG in the boot. Might have caught fire instantaneously.
When you are using duel fuel and currently using CNG , the petrol keeps pumping from tank till carburator and returns to tank as the solonoid switch blocks supply to carburator. Means to say constant flow of petrol will be there in boot. If that fuel pipe is damaged , chances of catching fire on friction.
Also, the dynamo, which generates power to recouperate battery, would have caused fire, when raptured fuel line sprays petrol into dynamo.
Remote chance of fire could be smoking inside car. during impact, cigarette butt still burning would have caused fire by igniting raptured fuel line be it petrol or CNG.
I have one experience in my Gypsy. When the mechanic was setting up carburator, he pulled the fuel pipe from carburator, the still continueing petrol was accidentally fell on dynamo. Instantaneously huge fire in my boot. Fortunately, fire extinguisher was near by and got fire put off. Else, would have lost my gypsy for ever and some lives lost.
Punch Line is : Since the CNG / LPG tanks are fitted inside the cabin, notice for leaks and avoid smoking. Keep the windows open when you notice a leak.
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