An Experimental and Numerical Investigation of the Performance, Combustion and Emission Characteristics of a Diesel Engine Fueled with Jatropha Biodiesel

Abstract

The effect of addition of jatropha biodiesel to mineral diesel on the performance and emission characteristics of a conventional compression ignition engine have been experimentally investigated and compared with simulated data using Diesel-RK software. The experiments were carried out using pure diesel (B0) and pure jatropha biodiesel (JB100) as fuels. The performance characteristics shows that brake specific fuel consumption (BSFC) increases and brake thermal efficiency decreases with the use of jatropha biodiesel. Experimentally, pure diesel has maximum efficiency 29.6%, where as pure biodiesel has maximum efficiency of 21.2%. In the simulation, the pure diesel has maximum efficiency 30.3% where as pure jatropha biodiesel has the maximum efficiency of 27.5%. In respect of emission characteristics, NO x emission is found to increase with load as well as use of biodiesel in both experimental and simulation study. After the successful validation of the numerical study with the experimental, another simulation was done, where the performance, combustion and emission characteristics of the same engine fueled with pure diesel (B0), pure jatropha biodiesel (JB100) and 50% jatropha blend (JB50) were derived. In the numerical study it is found that, with the use of jatropha biodiesel the BSFC increases whereas brake thermal efficiency decreases. Combustion characteristics show an increase in peak cylinder pressure and a decrease in ignition delay period with the increase in biodiesel share in the blends; whereas the emission of NO x and CO 2 increases; smoke and PM emission decreases for the same.

Study of the performance and emission characteristics for a dual fuel powered single cylinder diesel engine

“…In this context, researchers, scientists, and engineers have come up with various alternate sources of fuel among which biodiesel is a viable substitute that can perhaps reduce the complexity of energy crisis to some coverage. It was proved by scientists that the characteristics of biodiesel are similar to the diesel fuel and can be used as its prominent substitute [6,7].…”

Effect of Injector Opening Pressure on Dairy Scum Biodiesel Operated Diesel Engine

“…Hence biodiesel is the alternative to the diesel. [30]. However, NOx and CO2 emission are enhanced in the coated engine.…”

Effect of Supercharging & Injection Pressure on Engine Combustion Characteristic of Jatropha Biodiesel Blend

“…The performance qualities show that brake particular fuel utilization (BSFC) increments and brake thermal efficiency diminishes with the utilization of Jatropha biodiesel. Burning characteristic show an expansion in pinnacle cylinder pressure and an abatement in start postpone period with the expansion in biodiesel partakes in the mixes; though the outflow of NOx and CO 2 expands smoke [12].…”