Keywords— Injection Pressure, Jatropha Oil Methyl Ester, Spray break up region, Injection velocity, Sauter Mean Diameter Abstract— The spray characteristic of the injected fuel is mainly depends upon fuel injection pressure, temperature, ambient pressure, fuel viscosity and fuel density. An experimental study was conducted to examine the effect of injection pressure on the spray was injected into direct injection (DI) diesel engine in the atmospheric condition. In Diesel engine, the window of 20 mm diameter hole and the transparent quartz glass materials were used for visualizing spray characteristics of combustion chamber at right angle triangle position. The varying Injection pressure of 180 - 240 bar and the engine was hand cranked for conducting the experiments. Spray characteristics for Jatropha oil methyl ester (JOME) and diesel were studied experimentally. Spray tip penetration and spray cone angle were measured in a combustion chamber of Direct Injection diesel engine by employing high speed Digital camera using Mie Scattering Technique and ImageJ software. The study shows the JOME gives longer spray tip penetration and smaller spray cone angle than those of diesel fuels. The Spray breakup region (Reynolds number, Weber number), Injection velocity and Sauter Mean Diameter (SMD) were determined for diesel and JOME. SMD decreases for JOME than diesel and the Injection velocity, Reynolds Number, Weber Number Increases for JOME than diesel. INTRODUCTION Biodiesel is biodegradable, non-poisonous and eco-friendly fuel, produced from vegetable oil, animal fats and waste cooking oil by transesterification process. The biodiesel blends is used for reduce the fuel properties of viscosity and density. The improvement of the spray characteristics leads to better atomization in the DI diesel engine. The fuel flow in the injector and the fuel propagation of the nozzle outlet provides the initial condition for investigate the macroscopic and microscopic spray characteristics in the combustion chamber [1].Improve the accurate calculation and the breakup model of injection spray is modified by introducing Kelvin–Helmholtz and Rayleigh–Taylor (KH–RT) model and the Comparison of experimental results with numerical ones about spray shapes, mean droplet diameter and axial mean velocity [2]. The macroscopic spray characteristics of spray tip penetration and spray cone angle are determined by lateral cross-sections at 80% of the shadow level and the lateral integration of shadow intensities of the diesel fuel [3]. The characteristics of fuel spray for the fuel injector obtained by using the shadowgraphs and particle image P. Raghu M. Senthamil Selvan K. Pitchandim N. Nallusamy India. OMR, Kalavakkam–603 110, Tamil Nadu, Department of Mechanical Engineering, SSN College of Engineering, mthamil19@gmail.com [email protected]Sriperumbudur- 602 117, Pennalur Irungattukottai, Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Varying Injection Pressurable Energy Sources Spray Characteristics of Diesel and Biodiesel by Experimental Study on Diesel Engine and Analysis the Tamil Nadu, India. International Conference on Recent Advances in Mechanical Engineering and Interdisciplinary Developments [ICRAMID - 2014] ISBN 978-93-80609-17-1 71
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Keywords— Injection Pressure, Jatropha Oil Methyl Ester, Spray break up region, Injection velocity, Sauter Mean Diameter
Abstract— The spray characteristic of the injected fuel is mainly depends upon fuel injection
pressure, temperature, ambient pressure, fuel viscosity and fuel density. An experimental study
was conducted to examine the effect of injection pressure on the spray was injected into direct
injection (DI) diesel engine in the atmospheric condition. In Diesel engine, the window of 20 mm
diameter hole and the transparent quartz glass materials were used for visualizing spray
characteristics of combustion chamber at right angle triangle position. The varying Injection
pressure of 180 - 240 bar and the engine was hand cranked for conducting the experiments. Spray
characteristics for Jatropha oil methyl ester (JOME) and diesel were studied experimentally.
Spray tip penetration and spray cone angle were measured in a combustion chamber of Direct
Injection diesel engine by employing high speed Digital camera using Mie Scattering Technique
and ImageJ software. The study shows the JOME gives longer spray tip penetration and smaller
spray cone angle than those of diesel fuels. The Spray breakup region (Reynolds number, Weber
number), Injection velocity and Sauter Mean Diameter (SMD) were determined for diesel and
JOME. SMD decreases for JOME than diesel and the Injection velocity, Reynolds Number,
Weber Number Increases for JOME than diesel.
INTRODUCTION
Biodiesel is biodegradable, non-poisonous and eco-friendly fuel, produced from vegetable
oil, animal fats and waste cooking oil by transesterification process. The biodiesel blends is used
for reduce the fuel properties of viscosity and density. The improvement of the spray
characteristics leads to better atomization in the DI diesel engine.
The fuel flow in the injector and the fuel propagation of the nozzle outlet provides the
initial condition for investigate the macroscopic and microscopic spray characteristics in the
combustion chamber [1].Improve the accurate calculation and the breakup model of injection
spray is modified by introducing Kelvin–Helmholtz and Rayleigh–Taylor (KH–RT) model and
the Comparison of experimental results with numerical ones about spray shapes, mean droplet
diameter and axial mean velocity [2]. The macroscopic spray characteristics of spray tip
penetration and spray cone angle are determined by lateral cross-sections at 80% of the shadow
level and the lateral integration of shadow intensities of the diesel fuel [3]. The characteristics of
fuel spray for the fuel injector obtained by using the shadowgraphs and particle image
P. Raghu M. Senthamil Selvan K. Pitchandim N. Nallusamy
India. OMR, Kalavakkam–603 110, Tamil Nadu, Department of Mechanical Engineering, SSN College of Engineering,