Effect of Hydrogen Enhancement on Performance Characteristics of Petrol Engine

Hydrogen is proved to be best source of energy as it possesses more energy content and also available in abundant amount in the world. Hydrogen is not a primary fuel it must be manufactured from water with either fossil or non-fossil energy sources. Hydrogen can be used as an engine fuel, whereas neither nuclear nor solar energy can be used directly for automotive fuel. It has good properties as a fuel for internal combustion engines like higher energy content per unit mass, no carbon content etc. The main disadvantages of using hydrogen as a fuel for automobile is that huge on-board storage are required because of its low density, makes the system bulky also more amount of H2 is unsafe to carry as a fuel. So to overcome above problem and for safe use of H2 as an automotive fuel it must be produced by water electrolysis and then it is introduced to engine along with the gasoline. Hence this study includes the design and development of onboard water Electrolyser for production of HHO (H2 and O2) gas. Also this study measures the performance and emission of this HHO + Gasoline fueled engine at various loading conditions. During experimental analysis it is observed that keeping all the benefits on one hand, one of the major pollutant like NOx is increasing due to high temperature and pressure development inside the cylinder due to presence of HHO gas.