Since 1950 all car engines had 6 Volt ignition systems. The advantage of the 6-volt system is that it uses the three cell storage battery which is cheaper, lighter, and less bulky than a six-cell battery of the same watt-hour capacity. As the compression ratio and engine speed increased, the voltage required to break down hence, the 12 Volt system came to be preferred. Now, let us check out the advantages of the 12 Volt battery ignition system over the 6 Volt battery ignition system.
The main advantages of 12 Volt ignition system are:
- The cables of a 6 Volt system to be twice the thickness of 12 Volt.
- Transmitting equal power without excessive voltage drop.
- During the starting surge, nearly twice the power is available for the ignition coil.
- Considerably higher voltage can be obtained.
- The number of accessories that can be connected to the battery is more since giving adequate voltage.
- Improve the starting of the engine because of twice power is available than 6 Volt.
Most of the uses of LPG as fuel at present in domestic and industrial purposes. However, it is also used in the automobile sector as fuel. Let us check some of the advantages and disadvantages of LPG are as follows. Also, you can check out the advantages and disadvantages of LPG cars to know more about it.
Advantages of LPG:
- LPG is non-toxic and non-corrosive in nature.
- Possesses good anti-knocking characteristics.
- LPG can be mix with air at any temperature.
- It has a high octane rating thus it burns cleaner than gasoline.
- LPG does not produce harmful emissions like CO, NO, and higher hydrocarbons. Because LPG contains less content of carbon than gasoline.
- LPG used as fuel in vapor form, therefore, there is no chance of crankcase dilution.
- A uniform mixture of air and fuel can be delivered to the cylinder.
- Frequent cleaning of the combustion chamber is not required because particulate emissions are less in LPG.
- There is no carbon deposit on the electrode of the spark plug. Thus, increase the life of sparkplug.
- High thermal efficiency due to the high octane rating.
- The longer engine life than gasoline engine due to less wear on the engine.
- Less vibration, less noise as compared with the diesel engines.
- LPG provides uniform calorific value. Thus, high combustion efficiency.
- LPG running vehicles result in a 10% increase in consumption compared with gasoline.
Disadvantages of LPG:
- LPG requires a special fuel system for a car.
- The storage tank is heavy thus increase the weight of the car.
- LPG is inflammable gas thus it is hazardous.
- It causes suffocation if leakage because it is heavier than air.
- LPG has low energy density thus it consumes more.
- LPG is costlier than CNG.
- Ignition temperature of LPG is higher than gasoline.
- LPG engine starting trouble at low temperatures because of low vapour pressure.
- It is difficult to provide sufficient power to vehicles in mountains or rough terrains.
- It reduces volumetric efficiency due to the high heat of vaporization.
- LPG is odorless therefore, leakage cannot be easily detected.
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Some of the advantages and disadvantages of LPG cars are as follows. Now, let you check out how to harm vehicles if you used the LPG as a fuel in your cars. Also, check out the advantages and disadvantages of LPG to know more about it.
Advantages of LPG used cars:
- LPG mixes with air at all temperatures.
- LPG has high antiknock characteristics.
- LPG used engine may have a 50% longer life.
- Instantly controllable decarburizing of parts.
- LPG contains less carbon than petrol.
- In LPG no crankcase dilution.
- LPG heat energy accounts for about 80% of petrol, but its high octane value compensates for the thermal efficiency of the engine.
- LPG is a cost-saving of about 50%.
- Maintenance is low.
- Clean burning and lowest CO2 emissions amongst all refined fuels.
- The effects of corrosion are greatly reduced.
- Avoid scaling and decarburizing of parts.
- Very high thermal efficiency.
- LPG can be used in a variety of applications such as in a vehicle, cooking, refrigeration, and rural heating.
- With the use of the LPG, the engine tends to overheat easily.
Disadvantages of LPG cars:
- At full throttle, LPG will produce 10% less horsepower.
- LPG ignition temperature is somewhere higher than petrol.
- LPG reduced 5% valve life.
- A good cooling system is necessary.
- The vehicle weight is increased due to the use of a heavy pressure cylinder to store LPG.
- Not all petrol stations sell LPG hence you can always use petrol as a backup.
- Installation is difficult.
- An engine will be overheated on a long journey because complete combustion occurs so more heat is liberated.
- Reduce engine life efficiency.
- Handling must be done under approximately 18 bar pressure.
- LPG characteristics odor is faint, so leakage can not be easily detected.
- Response to blending is feeble.
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