Effect of Intake Oxygen Volume Fraction on Engine Performance With On-board Hydrogen Generator

JI Changwei; YU Menghui; WANG Shuofeng; WANG Du; CONG Xiaoyu; XU Puyan

doi:10.11936/bjutxb2017050015

Journal of Beijing University of Technology > 2018 > 44(11): 1447-1453. > DOI: 10.11936/bjutxb2017050015

JI Changwei, YU Menghui, WANG Shuofeng, WANG Du, CONG Xiaoyu, XU Puyan. Effect of Intake Oxygen Volume Fraction on Engine Performance With On-board Hydrogen Generator[J]. Journal of Beijing University of Technology, 2018, 44(11): 1447-1453. DOI: 10.11936/bjutxb2017050015

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Effect of Intake Oxygen Volume Fraction on Engine Performance With On-board Hydrogen Generator

1.
Beijing Key Laboratory of Regional Air Pollution Prevention and Control, College of Environmental and Energy Engineering, Beijng University of Technology, Beijng 100124, China
2.
Collaborate Innovation Center of Electric Vehicle in Beijing, Beijing 100081, China

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Received Date: May 08, 2017
Available Online: August 03, 2022
Published Date: November 09, 2018

Graphical Abstract

Abstract

Abstract

To explore the effects of changing intake oxygen volume fraction after installing on-board hydrogen generator, an A151 engine manufactured by BAIC Group was modified. Oxygen injectors were placed in the rear of throttle valves. A self-developed electronic control system was used to control the intake oxygen volume fraction. The experiments were carried out under 1 500 r/min and 42 kPa, 1 500 r/min and 68 kPa, 2 000 r/min and 42 kPa, and 2 000 r/min and 68 kPa operating conditions, respectively. In this paper, the combustion, dynamic, economy and emissions performances of the engine installed on-board hydrogen generator with different intake oxygen volume fractions were studied. Experimental results show that the increase of the intake oxygen volume fraction can enhance combustion, and improve the power of the engine. The torque increases at most 50%. The economy is improved under particular conditions, and the fuel consumption is reduced at most 18.6%. HC emissions decrease at most 63.15%, while the NO_x emissions increase under all conditions.
- hydrogen generator,
- combustion,
- dynamic performance,
- economy,
- emission

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References (21)

References

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Effect of Intake Oxygen Volume Fraction on Engine Performance With On-board Hydrogen Generator