NUMERICAL STUDY ON THE EFFECTS OF DIFFERENT INJECTION PATTERNS IN AN ANNULUS INJECTOR ON THE PERFORMANCE OF A DIESEL ENGINE

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ESMAELNAJAD RASOOL; SHERVANI TABAR MOHAMAD TAGHI; JAFARI MOHARRAM; RAZAVI SEYED ESMAIL

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:2 Page(s): 423-433

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Title

NUMERICAL STUDY ON THE EFFECTS OF DIFFERENT INJECTION PATTERNS IN AN ANNULUS INJECTOR ON THE PERFORMANCE OF A DIESEL ENGINE

Author(s)

ESMAELNAJAD RASOOL | SHERVANI TABAR MOHAMAD TAGHI | JAFARI MOHARRAM | RAZAVI SEYED ESMAIL | Issue Writer Certificate

Keywords

ANNULUS INJECTORQ1

INJECTOR SPRAY FUNCTIONQ1

NUMERICAL METHODSQ2

DIESEL ENGINE PERFORMANCEQ2

Abstract

One of the important ways for improving performance of diesel engines is selecting of a proper and efficient fuel injection pattern. In this study six different patterns of fuel injection have been considered and performance of a diesel engine by using these patterns of fuel injection have been investigate numerically by employing AVL Fire. An annulus nozzle have been consider for the fuel injection system. It is expected that considering an annulus nozzle lead to increase of spry cone angle and proper distribution of the fuel inside the combustion chamber. Results show that employing proper and efficient patterns of fuel injection lead to increase of engine power and decrease of exhaust pollutants gases. Results also show that by employing a quasi-triangle fuel injection pattern, the diesel engine has better performance in competition with the case of using a constant fuel injection. It is found that by employing a quasi-triangle pattern of fuel injection, SFC reduces to 0.2043 kg/kJ, while the engine power increased by 27.5% and the magnitude of NO increases slightly. In the case of employing a constant-decreasing fuel injection pattern, the magnitude of SFC reduces to 0.2029kg/kJ whereas the magnitude of NO increases in comparison with the case of using constant fuel injection pattern. Numerical results show that by employing a constant-increasing pattern of fuel injection, the engine power is approximately equal to the engine’s power in the case of using a constant fuel injection pattern. But in this case the magnitude of NO reduces considerably.

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APA: Copy

ESMAELNAJAD, RASOOL, SHERVANI TABAR, MOHAMAD TAGHI, JAFARI, MOHARRAM, & RAZAVI, SEYED ESMAIL. (2018). NUMERICAL STUDY ON THE EFFECTS OF DIFFERENT INJECTION PATTERNS IN AN ANNULUS INJECTOR ON THE PERFORMANCE OF A DIESEL ENGINE. MODARES MECHANICAL ENGINEERING, 18(2 ), 423-433. SID. https://sid.ir/paper/178676/en

Vancouver: Copy

ESMAELNAJAD RASOOL, SHERVANI TABAR MOHAMAD TAGHI, JAFARI MOHARRAM, RAZAVI SEYED ESMAIL. NUMERICAL STUDY ON THE EFFECTS OF DIFFERENT INJECTION PATTERNS IN AN ANNULUS INJECTOR ON THE PERFORMANCE OF A DIESEL ENGINE. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(2 ):423-433. Available from: https://sid.ir/paper/178676/en

IEEE: Copy

RASOOL ESMAELNAJAD, MOHAMAD TAGHI SHERVANI TABAR, MOHARRAM JAFARI, and SEYED ESMAIL RAZAVI, “NUMERICAL STUDY ON THE EFFECTS OF DIFFERENT INJECTION PATTERNS IN AN ANNULUS INJECTOR ON THE PERFORMANCE OF A DIESEL ENGINE,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 2 , pp. 423–433, 2018, [Online]. Available: https://sid.ir/paper/178676/en

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