Combined Effect of Air Intake Method and Hydrogen Injection Timing on Airflow Movement and Mixture Formation in a hydrogen direct injection rotary engine

Chen, Wei; Yu, Shiwu; Zuo, Qingsong; Zhu, Guowei; Zhang, Bin; Yang, Xu

doi:10.1016/j.ijhydene.2022.02.045

Cited by 34 publications

(2 citation statements)

References 44 publications

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“…In recent years, hydrogen internal combustion engines have been extensively studied by researchers from various countries due to their unique advantages and potential value, leading to continuous improvement in the performance and emissions of hydrogen internal combustion engines. Similar to gasoline engines, hydrogen internal combustion engines also have two injection methods for fuel, namely Port Fuel Injection (PFI) and Hydrogen Direct Injection (HDI) [5,6]. Among them, HDI technology has relatively higher requirements for nozzle pressure, sealing, corrosion prevention, and durability, and the control strategy is more complex.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Hydrogen Injection Flow Rate for Hydrogen Internal Combustion Engines Based on IQGA

Guo

Wang

2023

jest

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The density of hydrogen is extremely low, and during fuel supply, hydrogen gas will rapidly expand from the hydrogen injection port into the intake duct, leading to air supply blockage. To eliminate intake blockage in hydrogen fueled internal combustion engines and improve their overall performance. This article investigates the effects of different hydrogen injection rates (hydrogen injection pressure and nozzle diameter) on the performance of hydrogen internal combustion engines at low speeds, based on an improved quantum genetic algorithm (IQGA) and a combination weighting method. The results show that compared with the standard quantum genetic algorithm (QGA), IQGA has faster convergence speed and higher convergence accuracy. By using IQGA to optimize the nozzle diameter and hydrogen injection pressure, it can be concluded that when 3mm and 1.5bar are selected for hydrogen internal combustion engines, intake blockage is less likely to occur; Changing the nozzle diameter and hydrogen injection pressure separately has a significant impact on the flow state of the mixed gas in the inlet duct, and the nozzle diameter has a more significant effect on the inlet blockage than the hydrogen injection pressure. The coupling effect of the two is reflected in the impact of the hydrogen injection mass flow rate on the flow state of the mixed gas in the inlet duct. There is a strict linear relationship between the hydrogen injection mass flow rate and the maximum return flow rate. When the hydrogen injection mass flow rate is not higher than 2.29kg/h, before the inlet valve is closed, No intake back flow occurs; through the combination weighting method, it can be concluded that the comprehensive performance of hydrogen internal combustion engines is the best when the nozzle diameter is 5mm and the hydrogen injection pressure is 3bar.

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Section: Introductionmentioning

confidence: 99%

Optimization of Hydrogen Injection Flow Rate for Hydrogen Internal Combustion Engines Based on IQGA

Guo

Wang

2023

jest

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“…It is well-known that hydrogen has the characteristics of zero carbon, green, high energy, and renewable [1]. Under the background of energy transformation and low-carbon and zerocarbon development of fuel, pure hydrogen internal combustion engine (PH-ICE) has become an essential direction for hydrogen energy applications due to its significant advantages [2], such as no carbon emissions, high efficiency, high reliability, and low pollution [3]. It has become a recent development hotspot for internal combustion engines, which has aroused great attention from domestic and foreign auto companies and research institutions.…”

Section: Introductionmentioning

confidence: 99%

Review of Combustion Performance Improvement and Nitrogen-Containing Pollutant Control in the Pure Hydrogen Internal Combustion Engine

Liu

Chen²,

Zuo

et al. 2022

IJAMM

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Review Review of Combustion Performance Improvement and Nitrogen-Containing Pollutant Control in the Pure Hydrogen Internal Combustion Engine Chun Lu 1, Wei Chen 1,2, Qingsong Zuo 1, Guohui Zhu 1, Yi Zhang 3, and Zhengbai Liu 4,* 1 School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China 2 Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Foshan 528311, China 3 School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China 4 School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China * Correspondence: liuzb3@sustc.edu.cn Received: 24 September 2022 Accepted: 21 November 2022 Published: 25 December 2022 Abstract: Hydrogen energy is regarded as the best form to achieve the dual-carbon strategic goal of “carbon peaking and carbon neutrality”. It is well-known that hydrogen energy has the characteristics of zero carbon, green, high energy, and renewable. Recently, the pure hydrogen internal combustion engine (PH-ICE) has become one of the essential directions of hydrogen energy application due to its outstanding advantages, such as no carbon emission, high efficiency, high reliability, and low pollution. So far, the PH-ICE has aroused great attention from both domestic and foreign auto companies and research institutions. This paper first introduces the latest development status of PH-ICE. Secondly, from the in-engine and out-engine technologies aspects of the PH-ICE, a comprehensive summary of its combustion performance improvement and nitrogen oxide control technology is given. Finally, the future challenges and development trends of the hydrogen ICE are discussed.

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Combustion characteristics and performance analysis of a heavy-fuel rotary engine by designing fuel injection position

Chen,

Yang,

Zuo

et al. 2024

Applied Thermal Engineering

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Combined Effect of Air Intake Method and Hydrogen Injection Timing on Airflow Movement and Mixture Formation in a hydrogen direct injection rotary engine

Cited by 34 publications

References 44 publications

Optimization of Hydrogen Injection Flow Rate for Hydrogen Internal Combustion Engines Based on IQGA

Optimization of Hydrogen Injection Flow Rate for Hydrogen Internal Combustion Engines Based on IQGA

Review of Combustion Performance Improvement and Nitrogen-Containing Pollutant Control in the Pure Hydrogen Internal Combustion Engine

Combustion characteristics and performance analysis of a heavy-fuel rotary engine by designing fuel injection position

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