نتایج جستجو برای: Spray angle

تعداد نتایج: 150808  

ژورنال: تحقیقات موتور 2020
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Recently, there have been problems with particulate matter pollution in diesel engines and it has reduced production rate of these engines and also, it has accelerated the development of new technologies for PFI and GDI gasoline engines. The spray characteristics has significant impact on the combustion efficiency, power and emissions on internal combustion engines. In This study, effect of inj...

Journal: :iranian journal of science and technology transactions of mechanical engineering 2015
p. raghu n. nallusamy

the spray characteristics of the fuel greatly influence emissions from diesel engines. spray development plays a vital role in improving the combustion and emission characteristics of fuel because it directly affects the air- fuel mixture formation. the spray characteristics of fuel mainly depend on fuel injection process, fuel density, fuel viscosity, ambient pressure and temperature. among th...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
kazem bashirnezhad mohammad moghiman iman zahmatkesh

the present study is concerned with measuring and simulating soot formation and combustion in turbulent liquid fuel spray flames. soot concentrations inside the combustor are measured by filter paper technique. the simulation is based on the solution of the fully-coupled conservation equations for turbulent flow, chemical species kinetic modeling, fuel droplet evaporation and combustion and soo...

2017
Yong Wang Yu-song Yu Guo-xiu Li Tao-ming Jia

The macro characteristics and configurations of induced shock waves of the supersonic sprays are investigated by experimental methods. Visualization study of spray shape is carried out with the high-speed camera. The macro characteristics including spray tip penetration, velocity of spray tip and spray angle are analyzed. The configurations of shock waves are investigated by Schlieren technique...

2004
J. Xue M. A. Jog S. M. Jeng

A computational analysis of flow in simplex fuel atomizers using the arbitrary-Lagrangian–Eulerian method is presented. It is well established that the geometry of an atomizer plays an important role in governing its performance. We have investigated the effect on atomizer performance of four geometric parameters, namely, inlet slot angle, spin chamber convergence angle, trumpet angle, and trum...

ژورنال: تحقیقات موتور 2018
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with developing of optical technologies, using of different imaging methods to study various properties of gasoline direct injection spray is under development. Scope of this article is  to study the effect of overall spray angle and spray projected area for determination of spray propagation and investigate the effectiveness of this criterion.  The injector was a multi-hole direct injection in...

2015
Raghu P

In recent days, current research is going in alternative fuels due to increase in global warming and pollution in all over the world and also very stringent emission norms. In this way, the study on spray progress plays an important role in improving complete combustion and emission of fuel, because it is directly affects the air-fuel mixture formation. The macroscopic spray characteristics of ...

2017
Nitchakan Somboonwiwat Suksan Prombanpong

In cookware industry, interior spray coating process is an important process to protect the cookware product from the corrosion. In this process, the coating material “TEFLON” is used to spray to cover all the part’s surface. If a pot or pan is not too deep, one spray gun is enough to spray to cover all the interior surface. However, for the high side-wall pot, two spray guns must be used to sp...

2015
Minami Okamoto Minoru Sato Yoshihiko Shodai Masayoshi Kamijo

This research was conducted with the goal of clarifying the required conditions of water-saving showerheads. In order to this, the research analyzes the mutual relationship between water usage flow, the level of satisfaction and the physical properties of spray of showerheads. The physical properties of spray were measured using physical properties test apparatus of standard or scheme for water...

ژورنال: تحقیقات موتور 2019
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In this study, the effect of creation swirly flow and needle lift profile change on the behavior of the diesel fuel spray considered. To this end, two phase flow inside the diesel injector was simulated using the CFD. Solid works software has been used for geometry creation and AVL-Fire software has been used for meshing and simulating. Firstly, the liquid flow and spray characteristics of the ...

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