Multi-Parameter Optimization Design of the Impeller for a Hydrogen Liquefaction Turbine Expander

Xiaohui Zhang, Pei Liu, Hao Cheng, Zehui Zhao (), Fangqiu Li, Jiayi Yang and Ke Wang ()
Additional contact information
Xiaohui Zhang: Key Laboratory of Liquefied Natural Gas and Low Carbon Technology, China National Offshore Oil Corporation, Beijing 100028, China
Pei Liu: College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China
Hao Cheng: Key Laboratory of Liquefied Natural Gas and Low Carbon Technology, China National Offshore Oil Corporation, Beijing 100028, China
Zehui Zhao: College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China
Fangqiu Li: Key Laboratory of Liquefied Natural Gas and Low Carbon Technology, China National Offshore Oil Corporation, Beijing 100028, China
Jiayi Yang: Key Laboratory of Liquefied Natural Gas and Low Carbon Technology, China National Offshore Oil Corporation, Beijing 100028, China
Ke Wang: College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China

Energies, 2025, vol. 18, issue 19, 1-17

Abstract: This study employs a combined approach of theoretical calculation and numerical simulation to systematically optimize the impeller of a turbine expander, the core component of a 10-ton/day hydrogen liquefaction system. First, based on thermodynamic analysis and one-dimensional calculations, a three-factor four-level orthogonal experiment optimizes the parameters of reaction degree, radius ratio, and blade height ratio. Building upon this foundation, the influence of two-dimensional meridional profiles on impeller efficiency is investigated to establish design criteria. Subsequently, the effects of three-dimensional parameters including tip clearance, blade count, and blade thickness on performance are analyzed. Finally, the impact of rotational speed and flow rate on efficiency is explored, identifying high-efficiency operational ranges. Through multi-parameter collaborative optimization, an impeller configuration achieving low outlet temperature (53.67 K) and high efficiency (about 93.6%) is obtained, providing critical references for designing high-efficiency turbine expanders in hydrogen liquefaction systems.

Keywords: hydrogen liquefaction; turbine expander; impeller; optimization design; numerical simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/19/5142/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/19/5142/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:19:p:5142-:d:1759652

Access Statistics for this article

Energies is currently edited by Ms. Cassie Shen

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().