A Study on the Effects of the Injection Pressure of an Annulus Nozzle and Combustion Chamber on the Performance of a Diesel Engine

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Shervani Tabar M. T.; Esmaelnajad r.; Razavi S. E.; JAFARI M.

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Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2020 | Volume:49 | Issue:4 (89) Page(s): 125-134

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Title

A Study on the Effects of the Injection Pressure of an Annulus Nozzle and Combustion Chamber on the Performance of a Diesel Engine

Author(s)

Shervani Tabar M. T. | Esmaelnajad r. | Razavi S. E. | JAFARI M. | Issue Writer Certificate

Keywords

Annulus injector

Injector inlet pressure

Combustion chamber pressure

Diesel engine performance

Abstract

Injection system of a diesel engine is heart of the engine and could have significant effects on its performance. In this paper an annulus nozzle has been considered in the injection system of the Kubota V3300 diesel engine and the engine’ s performance has been investigated by considering different fuel injection pressures and different pressure of the combustion chamber due to the turbocharging. Numerical results show that under turbocharging circumstances, increasing the injection pressure leads to more perfect combustion and the magnitude of SFC decreases to 0. 195. Results also show that increasing the injection pressure during turbocharging lead to the increasing of engine’ s power and torque and to the increasing of pollutants. It is found that in the absence of turbocharging, increasing the injection pressure leads to the increasing of SFC. It is also found that for the injection pressure equal to 60MP, SFC is equal to 0. 21. Numerical results indicate that in the absence of turbocharging, increasing the injection pressure leads to the increase of the engine’ s power, torque and its pollutants. Comparisons between both cases of presence and absence of turbocharging show that amount of soot in the case of turbocharging is less than its amount when the engine is naturally aspirated. These comparisons also show that NO emission in the absence of turbocharging is considerably less than generation of NO in the other case.

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APA: Copy

Shervani Tabar, M. T., Esmaelnajad, r., Razavi, S. E., & JAFARI, M.. (2020). A Study on the Effects of the Injection Pressure of an Annulus Nozzle and Combustion Chamber on the Performance of a Diesel Engine. JOURNAL OF MECHANICAL ENGINEERING, 49(4 (89) ), 125-134. SID. https://sid.ir/paper/269884/en

Vancouver: Copy

Shervani Tabar M. T., Esmaelnajad r., Razavi S. E., JAFARI M.. A Study on the Effects of the Injection Pressure of an Annulus Nozzle and Combustion Chamber on the Performance of a Diesel Engine. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2020;49(4 (89) ):125-134. Available from: https://sid.ir/paper/269884/en

IEEE: Copy

M. T. Shervani Tabar, r. Esmaelnajad, S. E. Razavi, and M. JAFARI, “A Study on the Effects of the Injection Pressure of an Annulus Nozzle and Combustion Chamber on the Performance of a Diesel Engine,” JOURNAL OF MECHANICAL ENGINEERING, vol. 49, no. 4 (89) , pp. 125–134, 2020, [Online]. Available: https://sid.ir/paper/269884/en

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