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High-Energy Performance Compressors: Advanced Technologies and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: 20 January 2025 | Viewed by 3992

Special Issue Editors


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Guest Editor
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: hydrogen compressors; ionic liquid compressor technology; new solution dehumidification and air conditioning technology; electrodialysis technology; semi-solid (solid–liquid two-phase) forming process and intelligent equipment for key complex components of compressors

E-Mail Website
Guest Editor
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: mechanical properties; mechanical behavior of materials; microstructure; materials processing; mechanics of materials; material characteristics; metal forming casting; light metals; metal casting

Special Issue Information

Dear Colleagues,

Compressors are critical components in numerous industrial areas and fields of application. The improvement in the energy performance of compressors is beneficial for compressor users and also helps to meet the constraints and requirements set by organizations that aim to achieve green and efficient energy systems.

The goal of this Special Issue is to explore the current trends, technologies and applications of high-energy performance compressors, as well as related scientific and technological challenges and solutions. The Special Issue welcomes contributions that cover, but are not limited to, theoretical, computational, experimental and practical aspects of compressors aiming to improve energy performance. Topics relevant to the SI include:

  • Analytical, numerical and computational analysis;
  • Structural dynamics;
  • Machinery noise and vibration;
  • Fluid-structure interaction;
  • Structural health monitoring;
  • Fatigue damage and fracture diagnosis;
  • Optimal design and operation;
  • Material systems and technologies for compressors;
  • Manufacturing and materials processing for compressors;
  • Experimental investigations.

Dr. Yi Guo
Dr. Yongfei Wang
Guest Editors

Manuscript Submission Information

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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. Applied Sciences 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 2400 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.

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Published Papers (4 papers)

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Research

15 pages, 6621 KiB  
Article
Thermodynamic Study on the Vortex Teeth of Electric Scroll Compressors Based on Gradient Tooth Height
by Bin Yang, Annan Li, Mengli Yuan, Jinguo Wu, Feng Gao and Mengqi Ge
Appl. Sci. 2024, 14(14), 5977; https://doi.org/10.3390/app14145977 - 9 Jul 2024
Viewed by 492
Abstract
Through the analysis of the adhesion between the tooth head and axial clearance leakage attributed to vortex tooth shape deformation, an innovative tooth shape design concept has been introduced entitled “progressive change tooth high vortex tooth”. This unique design includes a gradual change [...] Read more.
Through the analysis of the adhesion between the tooth head and axial clearance leakage attributed to vortex tooth shape deformation, an innovative tooth shape design concept has been introduced entitled “progressive change tooth high vortex tooth”. This unique design includes a gradual change in tooth height and an elevated vortex tooth profile, using temperature-sensitive materials to enhance the resolution of temperature loading on the vortex disc. By refining the process of resolving the temperature loading on the vortex disc, the mean temperature function of the fluid domain along the wall of the vortex tooth is calculated, and a steady-state temperature distribution model for the solid domain of the vortex tooth is formulated. Subsequently, a finite element model for the high eddy current disc is constructed using Abaqus 2021 finite element software, which facilitates the calculation of stress–strain distribution within the high eddy current disc under both gas pressure and temperature field loads. The results show that, especially under conditions of low speed and low exhaust pressure, the temperature load mainly influences the maximum deformation and stress distribution of the vortex tooth. Specifically, under the influence of heat-solid coupling, the maximum deformation of the progressive change tooth high vortex tooth occurs in close proximity to the central compression cavity, reaching up to 13 microns. These results provide a crucial theoretical basis for the structural design and performance optimization of the compressor. Full article
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15 pages, 7214 KiB  
Article
Noise Analysis and Structural Optimization of Automobile Scroll Compressor Air Valve
by Feng Gao, Bin Yang, Xin Li and Jinguo Wu
Appl. Sci. 2024, 14(11), 4875; https://doi.org/10.3390/app14114875 - 4 Jun 2024
Viewed by 824
Abstract
The air conditioning compressor is a critical component in automobile heating, ventilation and air conditioning systems. However, compressor noise has long been a problem for automobile manufacturers. In recent years, the development and application of automobile air conditioning scroll compressors has increased significantly [...] Read more.
The air conditioning compressor is a critical component in automobile heating, ventilation and air conditioning systems. However, compressor noise has long been a problem for automobile manufacturers. In recent years, the development and application of automobile air conditioning scroll compressors has increased significantly due to their low mechanical vibration and noise. However, their limitations in terms of airflow pulse and noise cannot be ignored, especially in low speed and high load conditions where the noise generated has a negative impact on driving and passenger experience. Noise and airflow pulses are important considerations that cannot be ignored. This study innovatively modifies the end cap structure of the scroll compressor, using the principles of expansion muffler and insertion tube structure, with the aim of improving the acoustic quality of the scroll compressor. The results show that the novel valve construction can significantly reduce the sound pressure level of the scroll compressor noise to a maximum of 75.20 dBA. The results of this study provide a theoretical basis and practical technical applications for future research and development in the automobile industry. Full article
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21 pages, 18602 KiB  
Article
Design of a Compressor Test Rig for Immobilization of the Stall Cell
by Qian Zhang and Guangfeng An
Appl. Sci. 2024, 14(5), 1922; https://doi.org/10.3390/app14051922 - 26 Feb 2024
Cited by 1 | Viewed by 815
Abstract
Capturing internal flow experimentally presents significant challenges due to the asymmetric propagation and strong unsteadiness of a stall cell in the circumferential direction. In this study, a low-speed counter-rotating axial compressor test rig was designed based on a counter-rotating compressor to immobilize a [...] Read more.
Capturing internal flow experimentally presents significant challenges due to the asymmetric propagation and strong unsteadiness of a stall cell in the circumferential direction. In this study, a low-speed counter-rotating axial compressor test rig was designed based on a counter-rotating compressor to immobilize a stall cell and measure its internal flow characteristics. Determining an appropriate speed ratio that is capable of stabilizing the circumferential position of the stall cell in the counter-rotating compressor enabled visualization measurements to be conducted successfully. The preliminary results demonstrated the successful immobilization of the stall cell using an appropriate rotating speed ratio. Furthermore, the oil flow visualization measurements confirmed the presence of a distinct stall cell structure on the casing wall. This work represents an innovative approach towards immobilizing stall cells in axial compression systems. Full article
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17 pages, 6195 KiB  
Article
Control Strategies for Piston Trajectory in Ionic Compressors for Hydrogen Storage
by Yi Guo, Yuming Tang, Junhao Cao, Anna Diao and Xueyuan Peng
Appl. Sci. 2023, 13(21), 11759; https://doi.org/10.3390/app132111759 - 27 Oct 2023
Cited by 1 | Viewed by 1448
Abstract
The ionic compressor is a new and prospective technology applied for hydrogen storage which adopts a hydraulic system in which the hydraulic drive unit is a solid piston in the compression cavity. Controlling the trajectory of the solid piston is critical for achieving [...] Read more.
The ionic compressor is a new and prospective technology applied for hydrogen storage which adopts a hydraulic system in which the hydraulic drive unit is a solid piston in the compression cavity. Controlling the trajectory of the solid piston is critical for achieving the designed thermodynamic process of compression. However, a strategy for controlling the position of a piston in an ionic compressor has not been reported in the open literature. In this paper, three valve-controlled methodologies are proposed for the effective control of a piston’s trajectory in an ionic compressor. A transient numerical model of the entire compression system was built using AMESim 2021 software. The performances of the proposed control methods were simulated and compared. The results show that the maximum isothermal efficiency, 50.28%, was obtained in the system using Position-P control, for which the highest hydrogen discharge mass for a single compression cycle of 1.14 g, a relatively low specific energy consumption of 2395.17 J/g, and a relatively small velocity control error of 0.32 m/s were observed. Although the lowest specific energy consumption was found in the case of the Dual-PS control method, the smallest mass product was also found for this case. Therefore, the Position-S control strategy was identified as the optimal method for a hydraulically driven ionic liquid compressor system. Full article
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