LAPSE:2023.36394
Published Article
LAPSE:2023.36394
Operating and Thermal Efficiency Boundary Expansion of Argon Power Cycle Hydrogen Engine
Weiqi Ding, Jun Deng, Chenxu Wang, Renjie Deng, Hao Yang, Yongjian Tang, Zhe Ma, Liguang Li
July 13, 2023
The efficiency enhancement of argon power cycle engines through theoretical means has been substantiated. However, the escalation of in-cylinder temperatures engenders abnormal combustion phenomena, impeding the augmentation of compression ratios and practical efficiency. This study presents a comprehensive investigation employing experimental and simulation techniques, aiming to extend the boundaries of thermal efficiency and operational capabilities for hydrogen-powered argon cycle engines. The impact of hydrogen direct injection, intake boost, and port water injection is evaluated in conjunction with an argon power cycle hydrogen engine. The hydrogen direct injection, particularly at an engine speed of 1000 rpm, significantly increases the indicated mean effective pressure from 0.39 MPa to 0.72 Mpa, surpassing the performance of the port hydrogen injection. Manipulating the hydrogen direct injection timing results in the formation of a stratified mixture, effectively attenuating the combustion rate, and resolving the issue of excessively rapid hydrogen combustion within an Ar/O2 environment. The implementation of super lean combustion, combined with intake-boosting, achieves a maximum gross indicated thermal efficiency of 57.89%. Furthermore, the port water injection proves to be an effective measure against knock, broadening the operational range of intake-boosted conditions. Notably, the maximum gross indicated thermal efficiency recorded for the port water injection group under intake-boosted conditions reaches 59.35%.
Keywords
argon power cycle, indicated thermal efficiency, knock, stratified combustion, water injection
Suggested Citation
Ding W, Deng J, Wang C, Deng R, Yang H, Tang Y, Ma Z, Li L. Operating and Thermal Efficiency Boundary Expansion of Argon Power Cycle Hydrogen Engine. (2023). LAPSE:2023.36394
Author Affiliations
Ding W: School of Automotive Studies, Tongji University, Shanghai 201804, China
Deng J: School of Automotive Studies, Tongji University, Shanghai 201804, China
Wang C: School of Automotive Studies, Tongji University, Shanghai 201804, China
Deng R: School of Automotive Studies, Tongji University, Shanghai 201804, China
Yang H: School of Automotive Studies, Tongji University, Shanghai 201804, China
Tang Y: School of Automotive Studies, Tongji University, Shanghai 201804, China
Ma Z: School of Automotive Studies, Tongji University, Shanghai 201804, China
Li L: School of Automotive Studies, Tongji University, Shanghai 201804, China
Journal Name
Processes
Volume
11
Issue
6
First Page
1850
Year
2023
Publication Date
2023-06-19
ISSN
2227-9717
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Original Submission
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PII: pr11061850, Publication Type: Journal Article
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LAPSE:2023.36394
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https://doi.org/10.3390/pr11061850
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Jul 13, 2023
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CC BY 4.0
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Jul 13, 2023
 
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Calvin Tsay
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