Optimization of Operating Parameters of a Scroll Expander Based on Response Surface and NSGA II

doi:10.5829/ije.2024.37.01a.13

IR > 马克思主义学院

	Optimization of Operating Parameters of a Scroll Expander Based on Response Surface and NSGA II
	Shi, L.; Peng, B.
	2024-01
发表期刊	INTERNATIONAL JOURNAL OF ENGINEERING
ISSN	1025-2495
卷号	37 期号:1 页码:136-150
摘要	Adjusting the operating parameters to optimize the performance of the scroll expander has been a hot research topic among scholars. This paper innovatively combines the response surface method and NSGA2 algorithm for parameter optimization. This novel method can accurately predict the optimal operating parameters of the scroll expander and improve the overall efficiency of the scroll expander. Initially, a three-dimensional transient simulation model of the scroll expander was established, and the effects of three key operating parameters (suction pressure, exhaust pressure, and rotational speed) on the output power and isentropic efficiency of the scroll expander were analyzed through numerical simulation. On this basis, the response surface model between the input parameters and the objective function was established by using the response surface methodology. Consequently, three different optimization algorithms were compared, and it was found that NSGA-II had a better performance both in terms of convergence and solution performance,. Threfore, the NSGA-II algorithm was used for the multi-objective optimization. Under the premise of considering the maximum output power and isentropic efficiency, based on the established response surface model, the Pareto optimal solution was used to determine the optimal combination of its operating parameters: suction pressure of 1.62 MPa, exhaust pressure of 0.45 MPa, and rotational speed of 2,099.58 rpm.Finally, the numerical model is verified by the laboratory-built test bed of the Organic Rankine cycle low-temperature waste heat oilfree power generation system. The experimental results match well with the numerical simulation results and verify the model accuracy. The results from this pioneering and thorough thr study will provide a solid benchmark for the development and refinement of upcoming scroll machines.
关键词	Output Power Isentropic Efficiency Response Surface Methodology Multi-objective Optimization
DOI	10.5829/ije.2024.37.01a.13
收录类别	ESCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Multidisciplinary
WOS记录号	WOS:001158464400004
出版者	MATERIALS & ENERGY RESEARCH CENTER-MERC
原始文献类型	Article
EISSN	1735-9244
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/170165
专题	马克思主义学院机电工程学院
通讯作者	Peng, B.
作者单位	Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Shi, L.,Peng, B.. Optimization of Operating Parameters of a Scroll Expander Based on Response Surface and NSGA II[J]. INTERNATIONAL JOURNAL OF ENGINEERING,2024,37(1):136-150.
APA	Shi, L.,&Peng, B..(2024).Optimization of Operating Parameters of a Scroll Expander Based on Response Surface and NSGA II.INTERNATIONAL JOURNAL OF ENGINEERING,37(1),136-150.
MLA	Shi, L.,et al."Optimization of Operating Parameters of a Scroll Expander Based on Response Surface and NSGA II".INTERNATIONAL JOURNAL OF ENGINEERING 37.1(2024):136-150.