The dual fuel engines at part loads inevitably suffer from lower thermal efficiency and higher carbon monoxide and unburned fuel emission. This work is carried out to investigate combustion characteristics of a dual fuel (dieselgas) engine at part loads, using a single zone combustion model with detailed chemical kinetics for combustion of natural gas fuel. The authors developed software in ...

Techniques such as exhaust gas recirculation (EGR) and water-in-fuel emulsions (WFEs) can significantly decrease NOx emissions in diesel engines. As a disadvantage of adopting EGR, the afterburning period lengthens owing to shortage oxygen, lowering thermal efficiency. Meanwhile, WFEs slightly reduce phase without severely compromising Therefore, EGR–WFE combination was modeled utilizing KIVA-3...

The developments in the field of nano-additives have increased recent years due to desire reduce level exhaust emissions diesel engines. soot characteristics particulate matter (PM) and nitrogen oxides (NOX) were experimentally investigated using two concentrations titanium dioxide (TiO2) as (25 ppm 40 ppm) blended with C20D (composed 20% castor oil methyl ester 80% fuel) 30% gas recirculation ...

This study aimed to assess the effectiveness of nonthermal plasma (NTP) technology utilizing a dielectric barrier discharge (DBD) reactor, both with and without exhaust gas recirculation (EGR), in reducing soot particles their impact on nitrogen oxides (NOx). The experiment involved maintaining constant flue flow rate 10 l/min, employing high voltage values 0, 6, kV, fixed frequency 500 Hz sett...

This thesis investigates the potential of corn oil biodiesel as a renewable alternative fuel for diesel engines. An experimental study is conducted to enhance engine characteristics blended through various approaches, including adjusting compression ratio, employing different exhaust gas recirculation (EGR) rates, and incorporating Nano additives into fuel. Preliminary examinations methyl ester...

the dual fuel engines at part loads inevitably suffer from lower thermal efficiency and higher carbon monoxide and unburned fuel emission. this work is carried out to investigate combustion characteristics of a dual fuel (dieselgas) engine at part loads, using a single zone combustion model with detailed chemical kinetics for combustion of natural gas fuel. the authors developed software in whi...

In the present study, a computational fluid dynamics (CFD) method have been utilized to investigate the effects of exhaust gas recirculation (EGR) and initial charge pressure by means of using a supercharger on the emissions and performance of a SI engine. This engine is fueled separately by gasoline and two potential alternative fuels, hydrogen and ethanol. The results of simulation are compar...

This study investigates the effects of intermediate temperature heat release (ITHR) on autoignition reactivity full boiling range gasolines with different octane sensitivity through intake and simulated exhaust gas recirculation (EGR) sweeps in a homogenous charge compression ignition (HCCI) engine. To isolate ITHR effects, low was suppressed use high oxygen mole fraction. For quantification IT...

Exhaust gas recirculation (EGR) is one of the main methods of reducing NOX emissions and has been widely used in marine diesel engines. This paper proposes an optimized comprehensive assessment method based on multi-objective grey situation decision theory, grey relation theory and grey entropy analysis to evaluate the performance and optimize rate determination of EGR, which currently lack cle...