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.