Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine

Bin Wang; Hua Tian; Demin Jia; Xiaoyan Wang; Wuqiang Long

doi:doi:10.11648/j.sd.20221002.12

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Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine

Bin Wang, Hua Tian, Demin Jia, Xiaoyan Wang, Wuqiang Long

Published in Science Discovery (Volume 10, Issue 2)

Received: 27 February 2022 Accepted: 26 March 2022 Published: 29 March 2022

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Abstract

As one of the primary performances of the diesel engine, the special power can be promoted by increasing the speed or the indicated mean effective pressure. However, the diesel engine will not have enough time for fuel-air mixing and combustion under higher speed, so the excellent matching of injection-bowl is the main way to improve mixing and accelerate combustion. In order to achieve the rapid combustion of a high-speed diesel engine, the effects of piston bowl geometry, diameter-depth ratio, and nozzle arrangement on combustion and performance are calculated by using CFD numerical simulation. The results show that the mixing quality can be improved, the combustion duration can be shortened, and higher combustion efficiency and higher power can be obtained by using a double-layer diverging combustion chamber with a shallow basin structure in the upper and lower layers. With the increase of the diameter-depth ratio of the two-layer diverging combustion chamber, the maximum explosion pressure, the peak heat release rate and the turbulent kinetic energy increase, and the power rise is continuously improved. A new double-layer diverging combustion system matched with a double-layer stagger nozzle based on double-layer diverging combustion chamber the is proposed, the mixing in the cylinder is uniform, the combustion is accelerated and close to complete combustion, and the special power is 61.39kW/L.

Published in	Science Discovery (Volume 10, Issue 2)
DOI	10.11648/j.sd.20221002.12
Page(s)	29-35
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Diesel Engine, High Power Density, Piston Bowl Geometry, Double-layer Nozzle, Special Power

References

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APA Style

Bin Wang, Hua Tian, Demin Jia, Xiaoyan Wang, Wuqiang Long. (2022). Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine. Science Discovery, 10(2), 29-35. https://doi.org/10.11648/j.sd.20221002.12

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ACS Style

Bin Wang; Hua Tian; Demin Jia; Xiaoyan Wang; Wuqiang Long. Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine. Sci. Discov. 2022, 10(2), 29-35. doi: 10.11648/j.sd.20221002.12

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AMA Style

Bin Wang, Hua Tian, Demin Jia, Xiaoyan Wang, Wuqiang Long. Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine. Sci Discov. 2022;10(2):29-35. doi: 10.11648/j.sd.20221002.12

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@article{10.11648/j.sd.20221002.12,
  author = {Bin Wang and Hua Tian and Demin Jia and Xiaoyan Wang and Wuqiang Long},
  title = {Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine},
  journal = {Science Discovery},
  volume = {10},
  number = {2},
  pages = {29-35},
  doi = {10.11648/j.sd.20221002.12},
  url = {https://doi.org/10.11648/j.sd.20221002.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20221002.12},
  abstract = {As one of the primary performances of the diesel engine, the special power can be promoted by increasing the speed or the indicated mean effective pressure. However, the diesel engine will not have enough time for fuel-air mixing and combustion under higher speed, so the excellent matching of injection-bowl is the main way to improve mixing and accelerate combustion. In order to achieve the rapid combustion of a high-speed diesel engine, the effects of piston bowl geometry, diameter-depth ratio, and nozzle arrangement on combustion and performance are calculated by using CFD numerical simulation. The results show that the mixing quality can be improved, the combustion duration can be shortened, and higher combustion efficiency and higher power can be obtained by using a double-layer diverging combustion chamber with a shallow basin structure in the upper and lower layers. With the increase of the diameter-depth ratio of the two-layer diverging combustion chamber, the maximum explosion pressure, the peak heat release rate and the turbulent kinetic energy increase, and the power rise is continuously improved. A new double-layer diverging combustion system matched with a double-layer stagger nozzle based on double-layer diverging combustion chamber the is proposed, the mixing in the cylinder is uniform, the combustion is accelerated and close to complete combustion, and the special power is 61.39kW/L.},
 year = {2022}
}

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TY  - JOUR
T1  - Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine
AU  - Bin Wang
AU  - Hua Tian
AU  - Demin Jia
AU  - Xiaoyan Wang
AU  - Wuqiang Long
Y1  - 2022/03/29
PY  - 2022
N1  - https://doi.org/10.11648/j.sd.20221002.12
DO  - 10.11648/j.sd.20221002.12
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 29
EP  - 35
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20221002.12
AB  - As one of the primary performances of the diesel engine, the special power can be promoted by increasing the speed or the indicated mean effective pressure. However, the diesel engine will not have enough time for fuel-air mixing and combustion under higher speed, so the excellent matching of injection-bowl is the main way to improve mixing and accelerate combustion. In order to achieve the rapid combustion of a high-speed diesel engine, the effects of piston bowl geometry, diameter-depth ratio, and nozzle arrangement on combustion and performance are calculated by using CFD numerical simulation. The results show that the mixing quality can be improved, the combustion duration can be shortened, and higher combustion efficiency and higher power can be obtained by using a double-layer diverging combustion chamber with a shallow basin structure in the upper and lower layers. With the increase of the diameter-depth ratio of the two-layer diverging combustion chamber, the maximum explosion pressure, the peak heat release rate and the turbulent kinetic energy increase, and the power rise is continuously improved. A new double-layer diverging combustion system matched with a double-layer stagger nozzle based on double-layer diverging combustion chamber the is proposed, the mixing in the cylinder is uniform, the combustion is accelerated and close to complete combustion, and the special power is 61.39kW/L.
VL  - 10
IS  - 2
ER  -

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Author Information

Bin Wang

Weichai Power Co., Ltd., Weifang, China
Hua Tian

School of Energy and Power, Dalian University of Technology, Dalian, China
Demin Jia

Weichai Power Co., Ltd., Weifang, China
Xiaoyan Wang

Weichai Power Co., Ltd., Weifang, China
Wuqiang Long

School of Energy and Power, Dalian University of Technology, Dalian, China

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Plain Text BibTeX RIS

APA Style

Bin Wang, Hua Tian, Demin Jia, Xiaoyan Wang, Wuqiang Long. (2022). Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine. Science Discovery, 10(2), 29-35. https://doi.org/10.11648/j.sd.20221002.12

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ACS Style

Bin Wang; Hua Tian; Demin Jia; Xiaoyan Wang; Wuqiang Long. Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine. Sci. Discov. 2022, 10(2), 29-35. doi: 10.11648/j.sd.20221002.12

Copy | Download

AMA Style

Bin Wang, Hua Tian, Demin Jia, Xiaoyan Wang, Wuqiang Long. Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine. Sci Discov. 2022;10(2):29-35. doi: 10.11648/j.sd.20221002.12

Copy | Download

@article{10.11648/j.sd.20221002.12,
  author = {Bin Wang and Hua Tian and Demin Jia and Xiaoyan Wang and Wuqiang Long},
  title = {Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine},
  journal = {Science Discovery},
  volume = {10},
  number = {2},
  pages = {29-35},
  doi = {10.11648/j.sd.20221002.12},
  url = {https://doi.org/10.11648/j.sd.20221002.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20221002.12},
  abstract = {As one of the primary performances of the diesel engine, the special power can be promoted by increasing the speed or the indicated mean effective pressure. However, the diesel engine will not have enough time for fuel-air mixing and combustion under higher speed, so the excellent matching of injection-bowl is the main way to improve mixing and accelerate combustion. In order to achieve the rapid combustion of a high-speed diesel engine, the effects of piston bowl geometry, diameter-depth ratio, and nozzle arrangement on combustion and performance are calculated by using CFD numerical simulation. The results show that the mixing quality can be improved, the combustion duration can be shortened, and higher combustion efficiency and higher power can be obtained by using a double-layer diverging combustion chamber with a shallow basin structure in the upper and lower layers. With the increase of the diameter-depth ratio of the two-layer diverging combustion chamber, the maximum explosion pressure, the peak heat release rate and the turbulent kinetic energy increase, and the power rise is continuously improved. A new double-layer diverging combustion system matched with a double-layer stagger nozzle based on double-layer diverging combustion chamber the is proposed, the mixing in the cylinder is uniform, the combustion is accelerated and close to complete combustion, and the special power is 61.39kW/L.},
 year = {2022}
}

Copy | Download

TY  - JOUR
T1  - Effect of Piston Bowl Geometry on Performances of a High Speed Diesel Engine
AU  - Bin Wang
AU  - Hua Tian
AU  - Demin Jia
AU  - Xiaoyan Wang
AU  - Wuqiang Long
Y1  - 2022/03/29
PY  - 2022
N1  - https://doi.org/10.11648/j.sd.20221002.12
DO  - 10.11648/j.sd.20221002.12
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 29
EP  - 35
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20221002.12
AB  - As one of the primary performances of the diesel engine, the special power can be promoted by increasing the speed or the indicated mean effective pressure. However, the diesel engine will not have enough time for fuel-air mixing and combustion under higher speed, so the excellent matching of injection-bowl is the main way to improve mixing and accelerate combustion. In order to achieve the rapid combustion of a high-speed diesel engine, the effects of piston bowl geometry, diameter-depth ratio, and nozzle arrangement on combustion and performance are calculated by using CFD numerical simulation. The results show that the mixing quality can be improved, the combustion duration can be shortened, and higher combustion efficiency and higher power can be obtained by using a double-layer diverging combustion chamber with a shallow basin structure in the upper and lower layers. With the increase of the diameter-depth ratio of the two-layer diverging combustion chamber, the maximum explosion pressure, the peak heat release rate and the turbulent kinetic energy increase, and the power rise is continuously improved. A new double-layer diverging combustion system matched with a double-layer stagger nozzle based on double-layer diverging combustion chamber the is proposed, the mixing in the cylinder is uniform, the combustion is accelerated and close to complete combustion, and the special power is 61.39kW/L.
VL  - 10
IS  - 2
ER  -

Copy | Download