Emission characteristics of using HCNG in the internal combustion engine with minimum pilot diesel injection for greater fuel economy

The chemical dynamics of hydrogen/hydrogen peroxide blends diluted with steam at compression ignition relevant conditions

“…The implementation of hydrogen in a single-fuel concept has been proven to be challenging due to the high compression ratios required in order to overcome the high auto-ignition temperature. In dual-fuel operation, (where hydrogen is used along with another more reactive fuel which promotes the ignition of the mixture) hydrogen has been used with carbon-based fuels, such as diesel , biodiesel [46,[56][57][58][59][60], biodiesel-diesel blends [61,62], methane-diesel blends [63,64], methanol-diesel blends [64], biodiesel-natural gas blends [65], dieselnatural gas blends [66], biodiesel-ethanol blends [67], biodiesel-butanol blends [68], natural gas [69,70], diethyl ether [71], jatropha oil [72,73], neem oil methyl ester [74], lemon grass oil [75], liquefied petroleum gas [76][77][78][79], compressed natural gas [80], biogas [81] and ethanol [82]. Being carbon-based, all these fuel blends produce carbonaceous emissions (e.g., CO 2 ) directly or indirectly (depending how these fuels are originally produced), thus, cancelling or reducing the efforts for drastic green house gases (GHG) reduction.…”

A numerical study to improve the position and angle of the producer gas injector inside the intake manifold to minimize emissions and efficiency enhancement of a bi engine

“…The energy crisis deeply impacted negatively on the environment by increasing its contamination [1]. Many methods are used to reduce this effect by figuring out a new power source such as renewable energy [2,3]. Significant contributions of renewable energy are appeared by the reduction of environment contamination depends on many developed techniques such as electric cars, fuel cells, biomass, hydrogen, LPG, methane, and solar-powered vehicles, these techniques have been used to reduce the emission levels from the transportation sector [2,4].…”

Experimental Evaluation of Performance and Combustion Characteristics in a Hydrogen–Methane Port Fueled Diesel Engine at Different Compression Ratios

“…In the past decades, many efforts have been devoted to revealing the performance of HCNG-fueled SI engines, and their results were widely reported in some reviews. , But great attention has been recently paid to HCNG-fueled CI engines. Some experimental and simulation studies have been performed regarding combustion, performance, and emissions of HCNG-fueled CI engines. ,− For example, Lounici et al experimentally studied the effects of hydrogen addition at different fractions to natural gas on the performance and emissions of a four-stroke single cylinder CI engine. They illustrated higher fuel consumption with pure natural gas but lower fuel consumption with mixtures of hydrogen with natural gas when compared to normal diesel operation.…”