On-board generation of HHO gas with dry cell electrolyser and its applications: a review

In this era of depleting fossil fuels, alternative fuels and their study has gained much importance. One the methods using is operating IC engines in dual fuel mode. This review an attempt to highlight investigations on HHO gas supplemented combustion internal engines, particularly diesel operated ones. better burning characteristics than pure hydrogen since, oxygen does not attain diatomic state. Hence, ideally having higher energy releasing capability. inducted systems show performance that ordinary terms brake thermal efficiency, specific consumption engine torque. However, volumetric efficiency these are relatively lesser. also emission characteristics. The CO unburned hydrocarbons almost reduced by 30-40%. major disadvantages possible increase NOx emission.