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Advanced Research on High-Energy Performance Compressors
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Advanced Research on High-Energy Performance Compressors

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J: Thermal Management".

Deadline for manuscript submissions: closed (15 February 2023) | Viewed by 12856

Special Issue Editors

Prof. Dr. Jianmei Feng

E-Mail Website
Guest Editor
Department of Compressor Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: positive displacement compressor; flow and heat transfer; multiphase flow; hydrogen energy; hydrogen pump and air compressor in FCV; ejectors; gas liquid separation; gas pulsation and piping vibration
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Zhongguo Sun

E-Mail Website
Guest Editor
Department of Fluid Machinery and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: computational fluid dynamics with meshless methods; theory and experimental study of the flow in fluid machinery; micro fluid machinery and complex flow in fluid engineering; ocean science, technology and engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Driven by global carbon reduction targets, compressors as a heavy consumer of energy will face many opportunities and challenges. It is urgent to research and develop more energy-saving and innovative products. Thus, relevant fundamental and practical research is necessary. The aims and topics of this Energies Special Issue on “Advanced Research on High-Energy Performance Compressors” cover all cutting-edge studies on various compressors in different applications, including refrigeration fields, heat pumps, nature gas fields, gas gathering and transportations, hydrogen utilization, oil and gas exploitation, etc.

The following topics, among others, are included in this issue:

  • Numerical simulation and experiments in compressors;
  • High-pressure hydrogen compressors for hydrogen refueling stations;
  • Large compressors for gas storage and transportation;
  • Carbon dioxide compressors for new energy vehicles;
  • High-performance compressors for fuel cell vehicles;
  • Energy saving technologies and applications on compressors;
  • Intelligent fault diagnosis system and noise control methods for compressors.

Prof. Dr. Jianmei Feng
Prof. Dr. Zhongguo Sun
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • numerical simulation
  • transient flow
  • energy saving
  • hydrogen utilization
  • BOP of fuel cell system
  • high performance
  • high speed

Related Special Issue

Published Papers (6 papers)

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Research

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17 pages, 5390 KiB  
Article
Theoretical and Experimental Investigation on Comparing the Efficiency of a Single-Piston Valved Linear Compressor and a Symmetrical Dual-Piston Valved Linear Compressor
by Zhijie Huang, Yuefeng Niu, Yanjie Liu, Yuanli Liu, Chen Zhang, Enchun Xing and Jinghui Cai
Energies 2022, 15(22), 8760; https://0-doi-org.brum.beds.ac.uk/10.3390/en15228760 - 21 Nov 2022
Viewed by 1178
Abstract
The efficiency of the valved linear compressor is very important to the efficiency of the space J-T throttling refrigerator. To compare the efficiency of the single-piston valved linear compressor (SVLC) and the symmetrical dual-piston valved linear compressor (SDVLC), this paper explores the factors [...] Read more.
The efficiency of the valved linear compressor is very important to the efficiency of the space J-T throttling refrigerator. To compare the efficiency of the single-piston valved linear compressor (SVLC) and the symmetrical dual-piston valved linear compressor (SDVLC), this paper explores the factors that affect efficiency. Firstly, this paper analyzes the mechanical vibration system of the linear compressor, the result shows that the efficiency is highest when the external force (current) is in phase with the speed. Then the numerical solutions of the current and velocity are obtained. By comparing the variance and same direction rate of the current and velocity between the SVLC and SDVLC, the reason for the difference in efficiency is explained. Subsequently, the performance of the SVLC and SDVLC are tested on the experimental system. The result shows that the current and velocity of the SDVLC are more in phase, and the isentropic efficiency, volume efficiency and motor efficiency of the SDVLC are all higher than that of the SVLC. Full article
(This article belongs to the Special Issue Advanced Research on High-Energy Performance Compressors)
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17 pages, 8479 KiB  
Article
Performance Enhancement of a Centrifugal Compressor by Designing a Tandem Cascade Diffuser
by Shuo Zhang, Wenqian Xu, Shuhua Yang, Fuan Lu and Huashu Dou
Energies 2022, 15(13), 4570; https://0-doi-org.brum.beds.ac.uk/10.3390/en15134570 - 22 Jun 2022
Viewed by 3186
Abstract
The performance of a vane diffuser plays an important role in transforming the high kinetic energy into pressure energy at the impeller outlet of a centrifugal compressor. In this study, the performance enhancement of a centrifugal compressor is achieved by designing a tandem [...] Read more.
The performance of a vane diffuser plays an important role in transforming the high kinetic energy into pressure energy at the impeller outlet of a centrifugal compressor. In this study, the performance enhancement of a centrifugal compressor is achieved by designing a tandem cascade diffuser. An optimum value of the total bending angle of a tandem cascade diffuser is obtained through numerical simulation. The total bending angle is defined as the angle between the tangent line of the front blade arc line at the leading edge point and the tangent line of the rear blade arc line at the trailing edge point. The range of the total bending angle increases from zero to 21°. The simulation results show that the variation of the total bending angle has a great impact on the performances of the compressor stage. The best performance is achieved by the 10° model, by which the minimum total pressure loss coefficient and the maximum static pressure recovery coefficient are obtained. The mechanism of performance improvement by choosing a reasonable total bending angle is that the separated flow zone in the diffuser is constrained and the distribution of radial velocity at the inlet and outlet of the diffuser is more uniformed. With the 10° model, the separated zone almost completely disappears in the diffuser and a distribution of more uniform radial velocity along the meridional section is obtained. Compared with the stage of the prototype with a single row of vane diffuser, the stage with the newly designed tandem vane diffuser (10° model) achieved performance improvement, the efficiency increased about 6%, and the total pressure ratio increased about 3.5% at the flow coefficient of 0.15. Full article
(This article belongs to the Special Issue Advanced Research on High-Energy Performance Compressors)
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17 pages, 6498 KiB  
Article
Application of CFD Method to Investigate the Evolution of the Thermodynamic Parameters of a Hyper Compressor and Its Pipelines
by Bin Zhao, Huan Wei, Yifeng Zhai, Jianmei Feng and Xueyuan Peng
Energies 2022, 15(12), 4452; https://0-doi-org.brum.beds.ac.uk/10.3390/en15124452 - 18 Jun 2022
Viewed by 1648
Abstract
Hyper compressors are key facilities for producing the low-density polyethylene with discharge pressure up to 350 MPa. Such high pressure brings great challenges to the design of the hyper compressor in many aspects. In this paper, a 3D transient computational fluid dynamics (CFD) [...] Read more.
Hyper compressors are key facilities for producing the low-density polyethylene with discharge pressure up to 350 MPa. Such high pressure brings great challenges to the design of the hyper compressor in many aspects. In this paper, a 3D transient computational fluid dynamics (CFD) model with inlet and outlet pipelines is built to investigate the thermodynamic performance of a hyper compressor. To realize the interaction between the thermodynamic processes and the pressure pulsation through valve dynamics, the pressures across the valve surfaces were monitored to the dynamic equation of the poppet valve. Then, structured grids were generated for the flow domain inside the valve, and the entire numerical model was solved by a commercial code: ANSYS Fluent. Consequently, the p-V diagram, the valve motion and pressure pulsation could be acquired simultaneously. The results of the numerical model showed that the exponents of the expansion and compression processes were 5.12 and 13.22, which were much larger than the common compressor. The maximal pressure pulsations were 13.25% and 22.07%, which occurred in the suction and discharge chambers, respectively. Severe flutter happened during the opening process of the suction valve due to the high incompressibility of the ethylene. Full article
(This article belongs to the Special Issue Advanced Research on High-Energy Performance Compressors)
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21 pages, 9312 KiB  
Article
Numerical Investigation on the Performance of a Transonic Axial Compressor with Inlet Distortion and Low Reynolds Number
by Zhiping Li, Xingyu Zhu, Zhaoqi Yan and Tianyu Pan
Energies 2022, 15(10), 3612; https://0-doi-org.brum.beds.ac.uk/10.3390/en15103612 - 15 May 2022
Cited by 2 | Viewed by 1779
Abstract
The performance and stability of the transonic fan stage with a nonuniform inflow is a key issue in aero engine operation, and the coupling of inlet distortion and low Reynolds numbers at high altitude creates more severe challenges to aero engines. This work [...] Read more.
The performance and stability of the transonic fan stage with a nonuniform inflow is a key issue in aero engine operation, and the coupling of inlet distortion and low Reynolds numbers at high altitude creates more severe challenges to aero engines. This work used computational methods to explore the performance and stability of a transonic fan stage with inlet distortion and a low Reynolds number. To investigate this issue, the transonic fan stage NASA stage 67 with a 180° total pressure distortion at a low Reynolds number was selected as the test case. Full-annulus 3D unsteady simulations were conducted to reveal the details of the flow field under coupling conditions. The computational results under different conditions were analyzed and showed that the coupling effect was not linearly stacked with single factors. The low Reynolds number in the coupling case thickened the boundary layer on the blade surface, and, on the one hand, the profile loss in the hub region increased. On the other hand, the structure of shock wave was converted in the tip region, which increased the shock loss significantly. In addition, the variation in the shock wave structure reconstructed the pressure distribution on the blade surface, allowing the fluid to migrate to the tip region, which affected the tip flow structure and ultimately delayed the stability boundary. Full article
(This article belongs to the Special Issue Advanced Research on High-Energy Performance Compressors)
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22 pages, 14535 KiB  
Article
Experimental and Numerical Analysis of Rotor–Rotor Interaction Characteristics inside a Multistage Transonic Axial Compressor
by Jiayi Zhao, Qingfei Lu and Dangguo Yang
Energies 2022, 15(7), 2627; https://0-doi-org.brum.beds.ac.uk/10.3390/en15072627 - 03 Apr 2022
Cited by 4 | Viewed by 1774
Abstract
Serving as a key component of the core engine, the high-load axial compressor is expected to have high performance, which determines several critical parameter levels of the aero-engine. The unsteady effect on the performance induced by the interaction among different rotors should not [...] Read more.
Serving as a key component of the core engine, the high-load axial compressor is expected to have high performance, which determines several critical parameter levels of the aero-engine. The unsteady effect on the performance induced by the interaction among different rotors should not be ignored during the design of a high-load compressor. The interaction between R1 (the first rotor row) and R2 (the second rotor row) rotors of a transonic axial compressor was measured in detail using high-frequency pressure fluctuation sensors, aiming to reveal the evolution and distribution characteristics of the R1 sweep effect inside the R2 passage. The results show that near choke and design points, the interaction between the R1 oblique shock wave at the leading edge and the high-pressure region on the blade pressure side triggers the R1-2BPF (blade passing frequency) disturbance, which is different from the traditional harmonic of the blade wake disturbance. A ‘long tail’ flow structure, which indicates the major influence of the R1 shock wave, fluctuation obviously reaches the exit of R1 and influences the upper part of S1 and R2. The combination of the R1-2BPF and the R1-1BPF (mainly caused by the R1 wake disturbance) influences the R2 flow field significantly, and both of them sharply grow at the middle and rear parts of the R2 passage where the strength of the two disturbances increases by 24% and 68%, respectively, compared to the leading edge of R2. Moreover, the circumferential non-uniformity of the R1-1BPF and R1-2BPF disturbances significantly increase at some locations of the R2 passage compared to the R1 exit, which is attributed to the relative clocking positions of the R1 and R2 blades. Full article
(This article belongs to the Special Issue Advanced Research on High-Energy Performance Compressors)
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10 pages, 1218 KiB  
Perspective
Designing Hydrogen Recirculation Ejectors for Proton Exchange Membrane Fuel Cell Systems
by Jianmei Feng, Jiquan Han, Zihui Pang and Xueyuan Peng
Energies 2023, 16(3), 1201; https://0-doi-org.brum.beds.ac.uk/10.3390/en16031201 - 21 Jan 2023
Cited by 2 | Viewed by 2504
Abstract
The proton exchange membrane fuel cell (PEMFC) is a promising device in the fields of power generation, energy storage, aerospace, and public transportation. The hydrogen recirculation ejector with the advantages of low cost, high durability, and no parasitic power is the key component [...] Read more.
The proton exchange membrane fuel cell (PEMFC) is a promising device in the fields of power generation, energy storage, aerospace, and public transportation. The hydrogen recirculation ejector with the advantages of low cost, high durability, and no parasitic power is the key component of PEMFC systems. However, it is challenging to design a hydrogen recirculation ejector to cover the wide operating conditions of PEMFC systems. In order to design an ejector for fuel cell systems, a comprehensive understanding of ejector research is required. Consequently, the state-of-the-art research work on the hydrogen recirculation ejector is analyzed, including characteristics of the ejector in PEM fuel cell systems, geometry design and optimization, different types of ejectors and a comparison between them, and system integration and control. Through a comprehensive analysis of ejectors, further research suggestions on designing high-performance ejectors are presented. Full article
(This article belongs to the Special Issue Advanced Research on High-Energy Performance Compressors)
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