Emission characteristics of high speed, dual fuel, compression ignition engine operating in a wide range of natural gas/diesel fuel proportions

Study on biogas premixed charge diesel dual fuelled engine

Remarkable improvement of NOx–PM trade-off in a diesel engine by means of bioethanol and EGR

Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine

Study of air inlet preheating and EGR impacts for improving the operation of compression ignition engine running under dual fuel mode

In order to reduce NOx and smoke simultaneously and also to improve markedly the trade-off between smoke and NOx without deteriorating fuel consumption, natural gas was charged homogeneously into the intake air and was burned igniting by a small amount of gas oil injection in a four cylinder naturally-aspirated DI diesel engine. Combustion tests were carried out by changing the ratio of the amount of natural gas and the amount of gas oil first, secondarily the intake preheating temperature, and thirdly the EGR rate respectively. Effects of the respective parameter on the ignition and the burning rate of natural gas, exhaust emissions and specific fuel consumption were clarified experimentally. It is found that significant improvement of smoke-NOx trade-off can be obtained without deteriorating fuel consumption by the suitable combination between the natural gas charge rate, the intake preheating temperature and the EGR rate for each engine load condition.

Effect of EGR and Preheating on Natural Gas Combustion Assisted with Gas-Oil in a Diesel Engine

Homogeneously charged natural gas was burned in a diesel engine assisted by a small amount of gas oil injection. The effects of the equivalence ratio of natural gas, the intake temperature and the EGR rate on ignition ofgas oil, the burning rate of natural gas and the knock limit were clarified experimentally. As results, a marked improvement in the trade-off between smoke and NOx was obtained maintaining a high thermal efficiency by a combination between the natural gas charge rate, the EGR rate, the intake preheating and the nozzle orifice size suitable at each engine load.

Effects of equivalence ratio and temperature of CNG premixture on knock limit in a dual fueled diesel engine

Ignition and Combustion Characteristics of Methanol Mixture in a Dual Fuel Diesel Engine(Diesel Engines, Performance and Emissions, Intake Gas Treatment)

Tetsuya Tagai

Papers

Effect of EGR and Preheating on Natural Gas Combustion Assisted with Gas-Oil in a Diesel Engine

Effects of equivalence ratio and temperature of CNG premixture on knock limit in a dual fueled diesel engine

Ignition and Combustion Characteristics of Methanol Mixture in a Dual Fuel Diesel Engine(Diesel Engines, Performance and Emissions, Intake Gas Treatment)

(3-05) Effect of EGR and Preheating on Natural Gas Combustion Assisted with Gas-Oil in a Diesel Engine((AF-2)Alternative Fuels 2-Gas Engines)