Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics
The energy storage system of electric-drive heavy mining trucks takes on a critical significance in the characteristics including excellent load capacity, economy, and high efficiency. However, the existing battery-based system does not apply to harsh cold environments, which is the common working c...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-09-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/18/6672 |
| _version_ | 1797488842771529728 |
|---|---|
| author | Lulu Gao Dongyue Wang Chun Jin Tong Yi |
| author_facet | Lulu Gao Dongyue Wang Chun Jin Tong Yi |
| author_sort | Lulu Gao |
| collection | DOAJ |
| description | The energy storage system of electric-drive heavy mining trucks takes on a critical significance in the characteristics including excellent load capacity, economy, and high efficiency. However, the existing battery-based system does not apply to harsh cold environments, which is the common working condition for the above trucks. A type of cycle hydro-pneumatic energy storage system for the trucks was proposed in this study. The dynamic model of the system, including the dynamic and thermodynamic models of hydraulic and pneumatic parts, was built to analyze the performance of the system. Subsequently, the thermodynamic characteristics were clarified during the energy storage and released through the real test condition-based simulation. The power and energy performances of the system were studied in practice based on the above characteristics. The analysis of the results showed that the system reduced 22.03% driving power at the optimal braking energy recovery rate, the energy density was nearly 12.6 MJ/m<sup>3</sup>, the maximum input power was higher than 230 kW, and the cycle efficiency was about 40.6%. The results of this study will be conducive to the application of the hydro-pneumatic energy storage system for the electric-drive mining trucks and reducing the resulting carbon emission. |
| first_indexed | 2024-03-10T00:08:04Z |
| format | Article |
| id | doaj.art-5802d66e7f794fc19c748e950d48cc5e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T00:08:04Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5802d66e7f794fc19c748e950d48cc5e2023-11-23T16:03:52ZengMDPI AGEnergies1996-10732022-09-011518667210.3390/en15186672Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic CharacteristicsLulu Gao0Dongyue Wang1Chun Jin2Tong Yi3School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaJiangsu Advanced Construction Machinery Innovation Center Ltd., Xuzhou 221004, ChinaThe energy storage system of electric-drive heavy mining trucks takes on a critical significance in the characteristics including excellent load capacity, economy, and high efficiency. However, the existing battery-based system does not apply to harsh cold environments, which is the common working condition for the above trucks. A type of cycle hydro-pneumatic energy storage system for the trucks was proposed in this study. The dynamic model of the system, including the dynamic and thermodynamic models of hydraulic and pneumatic parts, was built to analyze the performance of the system. Subsequently, the thermodynamic characteristics were clarified during the energy storage and released through the real test condition-based simulation. The power and energy performances of the system were studied in practice based on the above characteristics. The analysis of the results showed that the system reduced 22.03% driving power at the optimal braking energy recovery rate, the energy density was nearly 12.6 MJ/m<sup>3</sup>, the maximum input power was higher than 230 kW, and the cycle efficiency was about 40.6%. The results of this study will be conducive to the application of the hydro-pneumatic energy storage system for the electric-drive mining trucks and reducing the resulting carbon emission.https://www.mdpi.com/1996-1073/15/18/6672heavy mining dump trucks (HMDT)hydro-pneumaticenergy storage system (ESS)thermodynamics |
| spellingShingle | Lulu Gao Dongyue Wang Chun Jin Tong Yi Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics Energies heavy mining dump trucks (HMDT) hydro-pneumatic energy storage system (ESS) thermodynamics |
| title | Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics |
| title_full | Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics |
| title_fullStr | Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics |
| title_full_unstemmed | Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics |
| title_short | Modelling and Performance Analysis of Cyclic Hydro-Pneumatic Energy Storage System Considering the Thermodynamic Characteristics |
| title_sort | modelling and performance analysis of cyclic hydro pneumatic energy storage system considering the thermodynamic characteristics |
| topic | heavy mining dump trucks (HMDT) hydro-pneumatic energy storage system (ESS) thermodynamics |
| url | https://www.mdpi.com/1996-1073/15/18/6672 |
| work_keys_str_mv | AT lulugao modellingandperformanceanalysisofcyclichydropneumaticenergystoragesystemconsideringthethermodynamiccharacteristics AT dongyuewang modellingandperformanceanalysisofcyclichydropneumaticenergystoragesystemconsideringthethermodynamiccharacteristics AT chunjin modellingandperformanceanalysisofcyclichydropneumaticenergystoragesystemconsideringthethermodynamiccharacteristics AT tongyi modellingandperformanceanalysisofcyclichydropneumaticenergystoragesystemconsideringthethermodynamiccharacteristics |