HCNG or H2CNG is a fusion of compressed natural gas and 4-9 percent hydrogen by energy. In short natural gas is blended with hydrogen to make HCNG. It is utilized as a fuel gas for home appliances and internal combustion engines. Flammability and leak risks are alike in this mixture as those of compressed natural gas and therefore no unusual precautionary measures are necessary so as to avert hydrogen embrittlement of the materials which makes contact with with the mixture.

Vehicles powered with HCNG fuel are stepping towards the upcoming hydrogen-based transportation. They lessen nitrogen oxides emissions and proffer instant emissions benefits and petroleum reinstatement. Simultaneously overlay the technique for conversion to fuel cell vehicles by constructing stipulation for hydrogen structure.

There are current researches made to conclude the advantages of hydrogen as a vehicle fuel. Earlier knowledge displays that utilization of hydrogen in an internal combustion engine either as a whole or combined with CNG is likely to offer payback in emissions-preservation and exhale more benefits than the vehicles powered by compressed natural gas.

Other studies have revealed that the use of a blend of hydrogen and compressed natural gas (HCNG) in a conformist spark instilled gaseous engine enlarges the lean limit, advances thermal competence and lessens emissions whereas direct insertion of gaseous fuels has been shown to widen the load range of engines.

Alternative fuels are advanced or non-conventional fuels which are produced from domestic materials or substances that are good substitutes to the conventional fuels. In order to reduce the world-wide mounting reliability of imported oil and pondering about the environmental concerns, national government recommends all the inhabitants to reinstate conventional fuels ingestion with alternative fuels.

There are some of the distinguished alternative fuels available and rather consumed which includes-biodiesel,alcohol fuel, hydrogen compressed natural gas fuel, liquid nitrogen fuel, nuclear power, chemically stored electricity(batteries and fuel cells), vegetable oil and other biomass sources. You will probably see abundance of other kinds of alternative fuels popping up and being added to the above mentioned list of alternative fuels with the raising alarm of people over global warming.

An alternative fuel serves humankind with several benefits out of which the key benefit is that it combusts a lot cleaner than (up to 90%) than the conventional petroleum oils. This accordingly results in a large cutback of the carbon monoxide, sulphur and further organic compounds, emitted from the vehicles usually.

Alternative fuel owns a drawback of being costlier than the conventional fuels but statistical data has stated that the number of alternative fuel users are increasing remarkably, which is indeed a good sign as the increasing demand has directed normal fuel prices to decrease. But do not forget that using alternative fuel can help save your environment.

Alcohol fuels also known as bioalcohols are generally are of organic rather than petroleum sources. All over the history alcohol has been used as fuel in spite of fossil fuels, which have become the leading energy resource for the modern world. There are actually four various sorts of bioalcohol: methanol, ethanol, propanol (propane) and butanol (butane). Let’s have a look over each one of them broadly.

Ethanol and Methanol
Ethanol is an alcohol fuel that's derived largely from grain whereas methanol is an alcohol fuel that's derived chiefly from coal. Methanol and ethanol can both be obtained from fossil fuels (but are not fossil fuels) or from biomass. They produce less greenhouse gas emissions than conventional fuels. In today’s world where all are seeking a better option to power their vehicles without burning fossil fuels they are good alternatives.

An obvious advantage of ethanol is that it can easily be made virtually anywhere there is natural plant and animal life and the reality that it burns clean without any toxic emissions makes it an palpable choice. Methanol on other hand is used in racing cars and comparatively has received a less attention than ethanol. But the good thing about methanol is its fairly elevated octane rating that actually means it performs better than normal gasoline.

Ethanol is widely used in Brazil and in the United States, and together both countries produced 89 percent of the world's ethanol fuel in 2008. Ethanol fuels available are E85 (85% ethanol, 15% gasoline),

Environmental Protection Agency (EPA) has reported that the levels of carbon monoxide would get worse if people persist to contribute to it with their polluting cars. Everyone needs their car which is fortunately today followed by the urge of reducing pollution too.

There are many pollution-free alternatives available for fuel but the best of them is considered as ‘Hydrogen.’

Hydrogen is the simplest element and also the most abundant element in the universe. It is also found in many organic compounds, particularly the hydrocarbons that frame many of our fuels, such as gasoline, natural gas, methanol, and propane. Unlike nuclear and solar energy which cannot be utilized directly, hydrogen can be used as a motor fuel, directly. It is harmless, has been tested strictly for use in vehicles, and is being used in many vehicles already. It has the utmost energy content of any common fuel by weight (approximately three times more than gasoline) and the shortest energy content by volume (approximately four times less than gasoline).

Hydrogen thereby has been called the "most alternative" of the alternative fuels. When made by electrolysis of water, it does not liberate pollutants of any kind and when used in a fuel cell then even these disappear. In addition to this, no greenhouse gases are generated as there is no carbon in the fuel. All that comes out the vehicle's exhaust or byproduct is drinkable water! Moreover you can get unlimited supply of clean fuel by using hydrogen as the battery to store energy from a renewable source.