Author:
Molnar C V,Izvorean S,Borborean A T,Stoica V
Abstract
Abstract
This study is based on the effects of using an auxiliary fuel such as gas on the performance of diesel engines. More attempts to use gas as a secondary fuel in a diesel engine were made over the years, resulting in significant increases of the engine performance. Other effects of dual fuel use, are lower fuel consumption, and an improved combustion, that has a direct effect on pollutant emission. For this investigation a 4-cylinder diesel engine with mechanical injection, equipped with a speed regulator disable system. An auxiliary fuel (gas) is introduced through the intake manifold of the engine using a volume base measurement system. According to the literature, by increasing the main injection advance, we can see further improvement in the engine performance, this being a result of better timing of the burn process. The regular burn process uses only a part of the oxygen in the cylinder, by introducing the gas in the intake, it uses the rest of the oxygen in the cylinder in the burn process. This in theory will improve the efficiency of the engine and thus reduces the emissions.
Reference10 articles.
1. Effect of biogas on the performance and emissions of diesel engine fuelled with biodiesel-ethanol blends through response surface methodology approach;Sharma;Renewable Energy,2019
2. The effects of hydrogen enriched natural gas under different engine loads in a diesel engine;Esenay;International Journal of Hydrogen Energy,2022
3. Emissions and performance of diesel-natural gas dual-fuel engine operated with stoichiometric mixture;Jin;Fuel,2017
4. Experimental investigation on the combustion and exhaust emission characteristics of biogas-biodisel dual-fuel combustion in a CI engine;Yoon;Fuel Processing Technology,2011
5. Experimental investigation on combustion and particulate emissions of the high compressed natural gas reactivity controlled compression ignition over wide ranges of intake conditions in a multi-cylinder engine using a two-stage intake boost system;Sunyoup;Fuel Processing Technology,2022