Combustion and Emission Characteristics of Variable Compression Ignition Engine Fueled with<i>Jatropha curcas</i>Ethyl Ester Blends at Different Compression Ratio

Kumar, Rajneesh; Dixit, Ashish

doi:10.1155/2014/872923

Cited by 16 publications

(3 citation statements)

References 23 publications

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“…The increasing usage of biodiesel in IC engines of passenger cars, light and heavy duty vehicles, marine ships, and municipal buses have been studied to evaluate the impacts of the blended fuel wholly or partially on the performance and exhaust emissions of these engines [82][83][84][85][86][87][88]. Aside from the benefits which biodiesel offer, there is a controversial increase in poisonous nitrogen oxides.…”

Section: Abatement Of Pollutant Emissions Via Biodiesel Combustion In...mentioning

confidence: 99%

Overview of Biodiesel Combustion in Mitigating the Adverse Impacts of Engine Emissions on the Sustainable Human–Environment Scenario

2021

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Air pollution is a precursor to many health issues such as difficulty breathing, asthma, lung and heart diseases, and cancer. This study presents a concise view of biodiesel combustion in mitigating pollutant emissions which are generated by the combustion of fossil fuels, thereby eliminating the negative effects on human health and the environment. Gaseous pollutants such as carbon monoxide, unburned hydrocarbons, nitrogen oxides, particulate matter, and carbon dioxide are found to be major exhaust emissions from vehicles running on fossil fuels. Excessive exposure to these pollutants was found to be a precursor to reductions in life expectancy via health complications in humans. Greenhouse gas emissions from the transport sector were found to be 24% of total annual emissions, 74.5% of which came from the combustion of fossil fuel in road vehicles. Biodiesel combustion in vehicular engines is established to be a control technology in reducing gaseous pollutants toward building a sustainable and healthy human–environment scenario. The emissions reduction index from the United States National Biodiesel Board showed that the combustion of biodiesel wholly as a transportation fuel decreased total hydrocarbons, polycyclic aromatic hydrocarbons, carbon, and sulfur emissions by 67%, 80%, 48%, and 100%, respectively. Evaluation of emission results from topical literature strongly suggests that the use of biodiesel is effective in the reduction in pollutants, which is beneficial to human and environmental sustainability.

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Section: Abatement Of Pollutant Emissions Via Biodiesel Combustion In...mentioning

confidence: 99%

Overview of Biodiesel Combustion in Mitigating the Adverse Impacts of Engine Emissions on the Sustainable Human–Environment Scenario

2021

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“…According to our experimental results, in the case of application of alternative fuels in diesel engines, when using their mixtures with diesel fuel, (VCR) system is obligatory for optimal combustion and engine operation [3,5,6]. Some authors have studied the effect (CR) on performance and emissions of diesel engine operated with waste fried oil or neem methyl ester blend [15,16] and Jatropha curcas Ethyl Ester Blends [17]. Biodiesel as a fuel for diesel engines is very interesting, and its application in diesel engines also requires a mechanism for automatic change the (CR), to adapt the fuel to the conditions in the engine [18].…”

Section: Introductionmentioning

confidence: 99%

Determination of Combustion Process Model Parameters in Diesel Engine with Variable Compression Ratio

Milojević

Pešić

2018

Journal of Combustion

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Compression ratio has very important influence on fuel economy, emission, and other performances of internal combustion engines. Application of variable compression ratio in diesel engines has a number of benefits, such as limiting maximal in cylinder pressure and extended field of the optimal operating regime to the prime requirements: consumption, power, emission, noise, and multifuel capability. The manuscript presents also the patented mechanism for automatic change engine compression ratio with twopiece connecting rod. Beside experimental research, modeling of combustion process of diesel engine with direct injection has been performed. The basic problem, selection of the parameters in double Vibe function used for modeling the diesel engine combustion process, also performed for different compression ratio values. The optimal compression ratio value was defined regarding minimal fuel consumption and exhaust emission. For this purpose the test bench in the Laboratory for Engines of the Faculty of Engineering, University of Kragujevac, is brought into operation.

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“…The variable intake valve techniques have the potential to be widely used in internal combustion engines to reduce energy losses and fuel consumption [ 12 – 17 ]. Previous studies have mainly focused on simulations and system integrations based on cam mechanism valve.…”

Section: Introductionmentioning

confidence: 99%

Working Characteristics of Variable Intake Valve in Compressed Air Engine

Shi

Cai

2014

The Scientific World Journal

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A new camless compressed air engine is proposed, which can make the compressed air energy reasonably distributed. Through analysis of the camless compressed air engine, a mathematical model of the working processes was set up. Using the software MATLAB/Simulink for simulation, the pressure, temperature, and air mass of the cylinder were obtained. In order to verify the accuracy of the mathematical model, the experiments were conducted. Moreover, performance analysis was introduced to design compressed air engine. Results show that, firstly, the simulation results have good consistency with the experimental results. Secondly, under different intake pressures, the highest output power is obtained when the crank speed reaches 500 rpm, which also provides the maximum output torque. Finally, higher energy utilization efficiency can be obtained at the lower speed, intake pressure, and valve duration angle. This research can refer to the design of the camless valve of compressed air engine.

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Combustion and Emission Characteristics of Variable Compression Ignition Engine Fueled withJatropha curcasEthyl Ester Blends at Different Compression Ratio

Cited by 16 publications

References 23 publications

Overview of Biodiesel Combustion in Mitigating the Adverse Impacts of Engine Emissions on the Sustainable Human–Environment Scenario

Overview of Biodiesel Combustion in Mitigating the Adverse Impacts of Engine Emissions on the Sustainable Human–Environment Scenario

Determination of Combustion Process Model Parameters in Diesel Engine with Variable Compression Ratio

Working Characteristics of Variable Intake Valve in Compressed Air Engine

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