LPG’s performance as a source of automobile fuel
LPG is a by product of the process of generating normal hydrocarbon fuels. Thus its supply is abundant. LPG is a mixture of propane and butane and is one of the purer forms of fuel. It burns uniformly and as such is highly combustion efficient.
Performance wise, LPG vehicles handles the same way that an average petrol or diesel vehicle does. They also undergo the same maintenance schedules. However LPG reduces the carbon signature significantly. Tests reveal that it reduces carbon dioxide emission, which is significant green house gas, by almost 10-15% and also reduces the emission of nitrous oxide by 80%. It also reduces metallic pollutants to an absolute zero.
Use of LPG in automobiles became legal in India in the year 2000 following a ruling by the government.
Retro-fitment process time frame
Retro fitting a LPG kit to a standard automobile using petrol or diesel fuel takes about a day’s work. Usually with the extra caution and compliance required to get a LPG vehicle to ply on roads certain precautions are to be taken. The center from where you get your car to convert into a LPG fuel compliant vehicle has to be an accredited auto centre permitted by the R.T.O to undertake such modifications.
The LPG conversion kit contains a duel fuel conversion system which comes with the following components –
- Tank, which contains the highly pressurised LPG in liquid form, comes in capacities of 30 to 100 ltrs.
- The multivalves which controls and checks the filling of the tank comes with a 80% stop-fill safety feature. That’s means the valve closes not allowing further filling when 80% of the tank is filled.
- A device which automatically shuts of the tank and the fuel supply in the event of a ruptured line
- LPG solenoid valve
- Gasoline solenoid valve
- Electronic control module which controls of the flow of LPG in fuel injection systems
- LPG / Petrol switch, which enables the driver to choose which fuel he wishes to use
- Pressure regulator
- Mixer / gas injection which flows the LPG into the combustion chamber
The actual process of conversion
The conversion process actually uses the existing system and on top of that build the addendum. No existing parts or system is removed.
- The first and foremost task is to take the permission of the Regional Transport Authority who is going to approve and permit the vehicle post conversion to run on the roads.
- Secondly the alterations are done starting from mounting the LPG tank in the rear boot space and the fuel pipes are laid.
- Third the vaporizer is placed.
- Fourthly the dash board switch is placed to allow the driver to choose the fuel type; the LED display on the switch also displays the amount of LPG remaining in the tank.
After the retro fitting is done the vehicle is sent to the RTO for inspection and permission. It usually takes 1 day for the alteration and another day for the permission to come.