Energy optimisation of pneumatic actuator systems in manufacturing

Harris, Paul G.; Nolan, Sean M.; O’Donnell, Garret E.

doi:10.1016/j.jclepro.2014.03.011

Cited by 44 publications

(38 citation statements)

References 10 publications

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“…Therefore, the discharge chambers can be described by Equations (7), (10) and (12), and the charge chambers can be described by Equations (7), (9) and (11). For the fixed chambers, u can be set to zero; for isothermal chambers, dθ/dt can be set to zero.…”

Section: Simulation Modelmentioning

confidence: 99%

Analysis of the Energy Efficiency of a Pneumatic Booster Regulator with Energy Recovery

Yang

Tadano

et al. 2017

Applied Sciences

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Pneumatic booster regulators (PBR) are in great demand in modern pneumatic systems for their energy-saving abilities. A new booster regulator with energy recovery (VBA-R) was proposed, and its energy efficiency was investigated by introducing the concept of air power. On the basis of quality-alterable gas thermodynamics, an energy efficiency assessment and pressure response model for VBA-R was proposed. First, a model was solved using MATLAB/Simulink software, and an alternative experiment was designed to verify the mathematical model and performance improvement. The results showed that the simulation was consistent with the experiment. We also can conclude that, first of all, the energy efficiency decreases with the increasing of supply pressure and flow-rate consumption; a VBA-R has the highest efficiency when its diameter ratio is closest to 1.3. Finally, a recovery chamber helped to improve the performance of the VBA-R, which included a boost ratio improvement of 15-25% and an efficiency improvement of 5-10% compared with a conventional VBA booster regulator. This research lays the foundation for optimism regarding the proposed booster regulator.

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Section: Simulation Modelmentioning

confidence: 99%

Analysis of the Energy Efficiency of a Pneumatic Booster Regulator with Energy Recovery

Yang

Tadano

et al. 2017

Applied Sciences

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“…analysing the energy efficiency of hydraulic, pneumatic and piezoelectric actuators and improving on those actuators (Eriksson 2007;Harris et al 2014). Existing approaches for achieving higher efficiency vary depending on the actuating principles involved.…”

Section: Reconfigurable Machine Toolsmentioning

confidence: 99%

Sustainable Solutions for Machine Tools

Uhlmann

Lang

Prasol

et al. 2017

Sustainable Production, Life Cycle Engineering and Management

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Environmental, economic and social changes of any significant proportions cannot take place without a major shift in the manufacturing sector. In today's manufacturing processes, economic efficiency is realised through high volumes with the use of specialised machine tools. Change in society, such as in the form of mobility and digitisation, requires a complete overhaul in terms of thinking in the manufacturing industry. Moreover, the manufacturing industry contributes over 19 % to the world's greenhouse gas emissions. As a consequence of these issues, a demand for sustainable solutions in the production industry is increasing. In particular, the concept of "cost" in manufacturing processes and thus the "system boundaries" within the production of the future has to be changed. That is, a great number of aspects to the machine tool and production technology industries can be improved upon in order to achieve a more sustainable production environment. Within this chapter, the focus lies on microsystem technology enhanced modular machine tool frames, adaptive mechatronic components, as well as on internallycooled cutting tools. An innovative machine tool concept has been developed recently, featuring a modular machine tool frame using microsystem technology for communication within the frame, which allows for a high level of flexibility. Furthermore, add-on upgrading systems for outdated machine tools-which are particularly relevant for developing and emerging countries-are poised to gain in importance in the upcoming years. The system described here enables the accuracy of outdated machine tools to be increased, thus making these machine tools comparable to modern machine tool systems. Finally, the cutting process requires solutions for dry machining, as the use of cooling lubricants is environmentally damaging and a significant cost contributor in machining processes. One such solution is the use of internally cooled cutting tools.

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“…About 3%-7% of compressed air can be saved [16]. Harris P [17] believed that the conventional pneumatic circuits failed to take advantage of the expansion energy stored in the compressed air and just used the transferred energy. How to make full use of the expansion energy of the compressed gas to do work has become a hot research topic to improve the efficiency of the pneumatic system currently.…”

Section: Introductionmentioning

confidence: 99%

“…A variable pressure control method based on the bridge type circuit was put forward to improve the utilization efficiency of the compressed air. The genetic algorithm is adopted for dynamic optimization, which can save 29% of air amount per trip [17].…”

Section: Introductionmentioning

confidence: 99%

Research on the controllability and energy saving of the pneumatic direct drive system

Du¹,

Xiong²,

Xu³

et al. 2017

IJHT

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Aiming at the problem of large air consumption in traditional circuits, this paper proposes a new type of pneumatic circuit, which uses the high-pressure gas produced by the actuator to achieve energy conservation. First, the directly-driven pneumatic circuit of the small-sized air compressor is designed, and the corresponding closed circuit experimental table is set up. Second, the mathematical model of the system is established, the input and output of the air compressor are fitted with the least square method, and the transfer function of the system is derived. Third, the transfer function of the system is determined through parameter identification of the small air compressor system, and the time response and frequency response characteristics of the system are analyzed. Finally, the fuzzy PID controller is designed and the simulation and speed control experiment of the system under different working conditions are carried out. The research shows that compared with traditional circuit, the directly driven system of small air compressor can save 70%-74% of air consumption.

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Energy optimisation of pneumatic actuator systems in manufacturing

Cited by 44 publications

References 10 publications

Analysis of the Energy Efficiency of a Pneumatic Booster Regulator with Energy Recovery

Analysis of the Energy Efficiency of a Pneumatic Booster Regulator with Energy Recovery

Sustainable Solutions for Machine Tools

Research on the controllability and energy saving of the pneumatic direct drive system

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