The impact of fuel formulation on fuel injection timing, bulk modulus of compressibility, in-cylinder combustion processes, gaseous and particulate emissions, DPF regeneration temperature and urea-SCR NOx control has been examined. The primary test engine is a 5.9L Cummins ISB, which has been ...
combustion with biodiesel and diesel fuel was analyzed,and the results show that compared with diesel,biodiesel shortened ignition delay and lowered premixed combustion amount,in despite of an early start of injection caused by the fuel properties.The test results show that when fueled with biodiesel...
CONSTITUTION:In case of using fuel of low quality with a relatively low cetane number, dimethyl ether as a combustion improving agent is supplied into a cylinder 1 through an intake pipe 4. That is, a reaction chamber 6 is provided in the half way of an exhaust pipe 5, and a catalyzer...
In the equation, k is the specific heat ratio, dVdφ is the variation of the instantaneous volume of the cylinder with crankshaft angle, dPdφ is the variation of the pressure with crankshaft angle, m is the quality of charge and Cv is the constant volume specific heat. (2)dQdφ=kk−...
The objective of this study is to investigate the effect of fuel injection strategy on combustion and nano-particle emission in a small diesel engine. In this study, we conducted combustion analysis and measured both the weight of PM and number of nano-particels. At first, the optimum ...
The crank angle locations for the first occurrences of several main combustion events in a Diesel engine were investigated for varied fuel parameters. The events studied include: preflame reactions; premixed flame propagation; start of pressure rise; maximum rate of pressure rise (dp/dt); and peak...
摘要: A solution to the disposal of waste tyres.Replacement of biodiesel by fuel obtained from waste tyre through pyrolysis process.Optimum injection timing for JMETPO20 blend.关键词: Diesel engine Alternative fuel Performance Emission Combustion characteristics ...
The thermal efficiency of the engine decreased marginally with the use of fuel blends. The propanol diesel blends decreased the CO, NOand smoke emissions of the engine considerably. 展开 关键词: Propanol-diesel blends Diesel engine Combustion Performance Emission ...
In a natural gas fueled engine ignited by diesel fuel, the addition of hydrogen to the engine could be a possible way to improve thermal efficiency and reduce unburned methane which has a warming potential many times that of carbon dioxide as it promotes a more rapid and complete combustion....
Keywords:fuelmagnetization;energyconservationandemissionreduction;dieselengine;combustionperformance 柴油机广泛应用于大型机车、飞机、装甲车等运 输机械,在船舶上使用尤其广泛。据统计,采用先进 柴油机相对传统柴油机可节油约30%~40%,且尾 气中CO 2 的排放量可减少约20% [1] 。因此,对柴油 机节能减排的研究有非...