Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators
The global energy crisis and growing environmental concerns provide a strong impetus for the development of fuel-efficient hydraulic excavators (HEs). The boom potential energy of a conventional HE is consumed by throttling in a lowering process, which is a major reason for energy inefficiency. To s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1202914/full |
| _version_ | 1797806301841981440 |
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| author | Jiansong Li Jiansong Li Jiansong Li Shaohui Li Zhi Ji Yunfei Wang |
| author_facet | Jiansong Li Jiansong Li Jiansong Li Shaohui Li Zhi Ji Yunfei Wang |
| author_sort | Jiansong Li |
| collection | DOAJ |
| description | The global energy crisis and growing environmental concerns provide a strong impetus for the development of fuel-efficient hydraulic excavators (HEs). The boom potential energy of a conventional HE is consumed by throttling in a lowering process, which is a major reason for energy inefficiency. To solve the issue, this paper presents a flywheel-based boom energy regeneration system for HEs using load-sensing systems. The otherwise wasted boom potential energy is regenerated by a pump/motor and stored in a flywheel. The recaptured energy is reused in the form of pressure energy released to the pump outlet. The energy efficiencies of a conventional load-sensing system and the proposed system were analyzed. A control strategy was proposed to optimize the energy-saving procedure. To obtain a more reliable simulation model, a coasting experiment of the flywheel was carried out to obtain the key parameters related to the friction of the flywheel. A 4-t HE in our laboratory was selected as a study case to investigate the energy-saving effect of the flywheel-based boom energy regeneration system. Numeric simulations showed that compared with a conventional load-sensing system, the energy-saving rate was about 32.7% in a typical digging and dumping cycle. These findings indicated that the flywheel-based boom energy regeneration system is promising for developing energy-efficient HEs. |
| first_indexed | 2024-03-13T06:05:17Z |
| format | Article |
| id | doaj.art-641e38f2580d482daed2347069fd4dbf |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-03-13T06:05:17Z |
| publishDate | 2023-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-641e38f2580d482daed2347069fd4dbf2023-06-12T04:19:51ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-06-011110.3389/fenrg.2023.12029141202914Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavatorsJiansong Li0Jiansong Li1Jiansong Li2Shaohui Li3Zhi Ji4Yunfei Wang5Research and Development Center for Intelligent Manufacturing Technology of Engineering Equipment, Xuzhou College of Industrial Technology, Xuzhou, ChinaSchool of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaTechnology Center, Xuzhou Villead Heavy Industry Technology Co. Ltd., Xuzhou, ChinaResearch and Development Center for Intelligent Manufacturing Technology of Engineering Equipment, Xuzhou College of Industrial Technology, Xuzhou, ChinaJiangsu College of Safety Technology, Xuzhou, ChinaSchool of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaThe global energy crisis and growing environmental concerns provide a strong impetus for the development of fuel-efficient hydraulic excavators (HEs). The boom potential energy of a conventional HE is consumed by throttling in a lowering process, which is a major reason for energy inefficiency. To solve the issue, this paper presents a flywheel-based boom energy regeneration system for HEs using load-sensing systems. The otherwise wasted boom potential energy is regenerated by a pump/motor and stored in a flywheel. The recaptured energy is reused in the form of pressure energy released to the pump outlet. The energy efficiencies of a conventional load-sensing system and the proposed system were analyzed. A control strategy was proposed to optimize the energy-saving procedure. To obtain a more reliable simulation model, a coasting experiment of the flywheel was carried out to obtain the key parameters related to the friction of the flywheel. A 4-t HE in our laboratory was selected as a study case to investigate the energy-saving effect of the flywheel-based boom energy regeneration system. Numeric simulations showed that compared with a conventional load-sensing system, the energy-saving rate was about 32.7% in a typical digging and dumping cycle. These findings indicated that the flywheel-based boom energy regeneration system is promising for developing energy-efficient HEs.https://www.frontiersin.org/articles/10.3389/fenrg.2023.1202914/fullenergy-savingenergy regenerationflywheelhydraulic excavatorload sensing |
| spellingShingle | Jiansong Li Jiansong Li Jiansong Li Shaohui Li Zhi Ji Yunfei Wang Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators Frontiers in Energy Research energy-saving energy regeneration flywheel hydraulic excavator load sensing |
| title | Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators |
| title_full | Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators |
| title_fullStr | Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators |
| title_full_unstemmed | Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators |
| title_short | Design and energy analysis of a flywheel-based boom energy regeneration system for hydraulic excavators |
| title_sort | design and energy analysis of a flywheel based boom energy regeneration system for hydraulic excavators |
| topic | energy-saving energy regeneration flywheel hydraulic excavator load sensing |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1202914/full |
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