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Advantages GCE
Advantages of natural gas to gasoline:
- Octane gas (propane, butane, methane) - 105-112, but it burns more gently, which leads to less load on the pistons of the engine;
- Increase the operating period between repairs in 1,5 times;
- Increased service life of engine oil in 1,5-2 times;
- Reduce the engine noise by 3-8 dB (at least twice);
- Increased service life of spark plugs to 40%;
- Reducing emissions: SO - 2-3 times, N0 - in 1,2 times, CH - in 1,3-1,9 times.
Among the many motorists and even employees auto services There is a misconception that the gas supply system is unsafe, can damage the engine, reducing its capacity, service life and increase fuel consumption.Such fears are not unfounded, but to persuade people to return is simply impossible. The fact that the days of the first trial and low-quality equipment are long gone, and at the moment the technology is well rehearsed. Experience of operating gas-cylinder cars, shows that these vehicles in emergency situations less fire-and explosive than petrol-driven. Gas or gasoline mixed with air can be ignited only at high concentration in a certain volume.Because of the special additives in the event of a leak does not feel its smell is simply impossible. But the leakage of gasoline may be negligible. In an accident and damaged gas pipelines Multi-valve instantly stop the flow of gas, and destroy the gas cylinder is very difficult.Thus, after an accident resulting fuel is much more serious threat. To store the car with gas in a closed room on each line, emerging out of the cylinder, provided at least three mutually independent shut-off devices.On the filling line: valve on the block valve, check valve block valves, plug filling device. In the pipeline that feeds the engine: valve block valves, high-speed valve, solenoid gas valve with filter and removal device gearbox. Translation of the car at the gas does not require a major rework of the engine. The engine that runs on gas, requires minimal adjustment. Improving the work of the ignition system, the service life of candles rises by 40%.When the engine is running on gas is a more complete combustion of gas-air mixture than on petrol. As a consequence, improve conditions for lubrication rubbing pair "cylinder - piston rings", since the unburned fuel washes oil from the cylinder wall.Diminishes carbon formation in the combustion chamber of the cylinder head and pistons, as it reduces the number of carbonaceous sediments. Markedly reduced the total emissions.When properly selected, work on a gaseous fuel produced by the engine noise level is reduced by 3-8 dB, and besides, the engine begins to work more smoothly. Gas - high quality fuel with an octane number of about 105. Therefore, in any mode of the engine does not arise detonation. Application of gas significantly reduces compared with gasoline total emissions. More than three-fold reduced amount of toxic carbon monoxide CO (carbon monoxide), in 1,6 times - the content of carcinogenic hydrocarbons CH, consisting of particles of unburned fuel.The concentration of oxides of nitrogen dioxide, NO and NO2, generated during combustion of the mixture of oxygen and nitrogen (a harmless nitrogen entering the combustion chamber from the atmosphere, turns into a toxic compound - nitrogen oxides), when the engine on gas is reduced in 1,2 times. Along with the dignity gas-cylinder car it should be noted and a number of inherent weaknesses, namely: inability to start the engine in the cold season on gas, decrease in engine power by 7%;increase in metal car at 25-30 kg, the cylinder in the trunk takes place, there is a toroidal cylinders, spare wheel mounted in a niche, but they are expensive. At the gas pressure in the cylinder affects the temperature of the environment. Therefore we must make sure that the machine is not overheated.When completely filled cylinder (steam cushion it) even a slight increase in temperature can lead to a sharp increase in pressure.Car accessories has a special device that automatically denies the filling channel in achieving fill the payload of the container by 80%. When the specified amount of further filling of the container is terminated.
Gas Consumption
Given the physical properties of the gas, because of different calorific value, the consumption of propane-butane mixture should be greater consumption of gasoline. Theoretically, gas consumption can be determined by comparing the energy per unit volume for different types of fuel:- Propane - 6100 kcal / l;
- Bhutan - 6834 kcal / l;
- Gasoline - 7718 kcal / l;
- Propane-butane mixture (50% õ50%) - 6470 kcal / l;
- Propane-butane mixture (90% x 10%) - 6175 kcal / liter.
Car that runs on compressed natural gas
Today, most cars use as a fuel oil products - gasoline, if the increase in the number of cars will run the current pace, the proven reserves of oil will last about 40 years of age (this firm British Petroleum).Transfer of vehicles to alternative fuels could become one of the solutions to these challenges. Among the many alternatives to gasoline, natural gas today is the most appropriate economic, environmental and resource characteristics. Among the main factors to talk about natural gas as a full replacement of gasoline include the following:- Greater price stability and economic attractiveness to end users;
- Higher consumer properties when used as an energy or raw materials;
- The need to replace oil with other kinds of raw materials for its release in the interests of those sectors of the economy where it can not be replaced;
- A higher degree of environmental safety in production, transportation, processing, marketing and use;
- The world's proven natural gas reserves considerably exceed oil reserves.
The advantages of compressed gas to liquid
Liquefied petroleum gas (LPG)
is heavier than air 1,5-2 times and leakage may accumulate on the
premises, forming an explosive mixture with air. Compressed natural
gas (CNG) is lighter than air in 1,6 times and leaks instantly
disappears without creating an explosive mixture.The lower limit of
ignition of CNG - 5%, while the liquefied natural gas it is: a propane - 2,4%, butane - 1,8%. Thus, CNG less explosive. To bomb had exploded,
it must accumulate in 2,5 times more than the CIS. Taken appropriate
security measures in case of fire.Provides for new construction of
tanks used to store LNG. These cylinders are more durable. They do not
explode, because they contain breaking the protective membrane (in
temperature). When working on CNG do not need to regularly wash away
from the gearbox oily condensate,having a very unpleasant odor.The
condensate is simply not formed. In the exhaust emissions of CO
percentage is lower than in the emissions of the CIS, and the content
of CH is less than 25%. Most emissions are harmless water vapor. What
else can I take absolute advantage of compressed gas - is that it can
not make a surrogate, to forge and to propose in this form to the
buyer. While many gas stations gasoline or diesel oil is a mixture of
unknown reason. Finally, its gas does not wash off oil from parts of
the cylinder groups, saving up to 40% oil compared to gasoline. Gas
reduces shock loads on the engine and allows well-regulated motor to
serve one and a half times longer.The effectiveness of cubic meters of
natural gas equivalent liter of gasoline, while its value does not
exceed 50% of the cost of gasoline. All this greatly reduces operating
costs. Refitting your car to run on gas, the driver should not fear
that fuel prices suddenly rise, and attack on its budget at the most
inopportune moment. Natural gas prices set by governments and are
therefore not subject to seasonal fluctuations, as the price of
gasoline. In general, there are many reasons to call this an ideal gas
fuel. All this led to the gas-cylinder cars that park around the world
are growing rapidly and now has reached 3,1 million.For example, in
Europe in recent years, the number of cars increased by one third, and
the number of gas filling stations grew even faster - for the same
time, it doubled. In addition, filled with compressed gas vehicle
exempt him from the driver's overly biased environmental control of
the representatives and the SAI relating to this procedure, the loss
of time, money and nerves.
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