Energy‐saving methods in pneumatic actuator stroke using compressed air
Abstract The pneumatic systems have lower energy efficiency than the electric and hydraulic systems. Improving the utilisation rate of compressed air is an important aspect for increasing the energy efficiency in the pneumatic systems. This paper introduces two methods for reducing air consumption,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-05-01
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| Series: | The Journal of Engineering |
| Online Access: | https://doi.org/10.1049/tje2.12000 |
| Summary: | Abstract The pneumatic systems have lower energy efficiency than the electric and hydraulic systems. Improving the utilisation rate of compressed air is an important aspect for increasing the energy efficiency in the pneumatic systems. This paper introduces two methods for reducing air consumption, including the quantitative air intake method and the optimisation of the air intake and exhaust duration method. The quantitative air intake method analyses the minimum air consumption volume in a specific pneumatic system based on the energy conservation theory. The optimisation of the air intake and exhaust duration method aims to find the best air intake and exhaust time schedule by the mathematical optimisation of the energy‐saving and system stability of the pneumatic systems. An experimental equipment was established to verify the theoretical results of the two methods. Based on the experimental results, this paper analyses the characteristics and accuracy of the two methods and discusses the applicability of mathematical optimisation under some different boundary conditions. The experimental results show that both of the two methods can effectively reduce the air consumption in the piston stretching‐out stroke and save 76% of the air consumption compared with continuous air intake during the whole stroke. |
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| ISSN: | 2051-3305 |