Identification of energy wastes through sound analysis in compressed air systems

Czopek, Dorota; Gryboś, Dominik; Leszczyński, Jacek; Wiciak, Jerzy

doi:10.1016/j.energy.2021.122122

Cited by 11 publications

(6 citation statements)

References 31 publications

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“…Based on Equations ( 9)-( 13), methods of improving the efficiency of the utilization stage can be proposed by optimizing energy consumption while minimizing the thermodynamic expansion cycle area 1-2-3-4, as shown in Figure 3b. Due to the oversizing of the actuator, it consumes excessive energy to perform its task under specific parameters, relying only on transmission power, as shown in Equation (12). The thermodynamic expansion cycle area 1-2-3-4 can be constrained by reducing the transmission work of the actuator, achieved through decreasing the pressure p A , increasing the pressure p 0 , or using expansion power in conjunction with transmission power in the actuator.…”

Section: Classification Of Energy-saving Solutions In the Utilization...mentioning

confidence: 99%

“…As mentioned above, the main drawback of compressed air systems is their low energy efficiency, with only 5-10% of the electrical energy input to the compressor effectively being utilized in pneumatic actuators or motors [1,9]. Other disadvantages of compressed air systems include low precision in motion control [10], noise [11,12], and significant air leaks [1]. As a result, the Compressed Air and Gas Institute (CAGI), the European Association of Manufacturers of Compressors, Vacuum Pumps, Pneumatic Tools and Air and Condensate Treatment Equipment (PNEUROP), and entrepreneurs are actively looking for solutions to address this energy loss issue [13,14].…”

Section: Introductionmentioning

confidence: 99%

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A Review of Energy Overconsumption Reduction Methods in the Utilization Stage in Compressed Air Systems

Gryboś,

Leszczyński

2024

Energies

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Pneumatic systems use the energy of compressed air to carry out manufacturing automation processes through the implementation of complex handling and motion tasks. However, these systems are energy intensive: it is estimated that pneumatic systems in manufacturing plants consume approximately 10% of all electricity consumed in the industrial sector. At the same time, the energy efficiency of the whole pneumatic system is observed to be 6–10%, due to the compression process, oversizing, and overconsumption. There are numerous solutions in the literature focusing on improving efficiency at the compression stage of utilization; however, for the utilization stage, there is a lack of systematization and grouping of these solutions. The following review will summarize current knowledge about the utilization stage and methods for improving oversizing and energy overconsumption. In addition, a method of exergy analysis for pneumatic systems will be presented, which is a very useful tool to assess the efficiency of these systems.

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Section: Classification Of Energy-saving Solutions In the Utilization...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review of Energy Overconsumption Reduction Methods in the Utilization Stage in Compressed Air Systems

Gryboś,

Leszczyński

2024

Energies

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“…However, pneumatic systems have very low energy efficiency, approximately 5%-10%, cite [2]. Furthermore, the compressed air system is characterised by poor controllability [3] and high noise [4]. Energy losses in CAS occur during compression, transmission due to leaks [5] and the utilisation stage through excessive air consumption [6].…”

Section: Introdutionmentioning

confidence: 99%

Exergy Analysis for the Intermittent Air Supply in Pneumatic Machines

Gryboś,

Leszczyński

2024

14th International Fluid Power Conference

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Pneumatic systems are widely used to automate production lines in manufactured plants. Their big disadvantage is their low energy efficiency, 10-20%. It is mainly due to the overconsumption of compressed air by the oversized pneumatic actuator and other components. Reducing air consumption at the utilisation stage can result in significant exergy savings. This can be done by lowering the supply pressure, introducing back pressure, or using expansion energy in the actuator. The most promising is the last method that can be implemented using the intermittent air supply in the pneumatic actuator. The literature lacks an exergy analysis of the utilisation stage of pneumatic and intermittent air supply systems. There is also no optimisation of the control algorithm of intermittent air supply control algorithm in terms of minimising exergy consumption. In this paper, we demonstrate a mathematical model and exergy analysis as a tool for assessing the efficiency of the utilisation of pneumatic system and conduct computer simulation. Exergy analysis showed that for intermittent air supply the reduction in exergy consumption decreased by more than 60% compared to the classic oversized system. The results of the computer simulation give the opportunity to optimise the operation of the utilisation stage in pneumatic systems. Furthermore, exergy analysis can be a useful tool for energy analysis and assessment of pneumatic systems, as well as providing information on the desired direction of changes in the installation.

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“…Compressed air is one of the essential energy carriers employed in industrial and chemical processes [1][2][3]. Oil-injected screw compressors are extensively applied in the compressed air systems.…”

Section: Introductionmentioning

confidence: 99%

Impact of Built‐in Helical Fins on the Performance of Oil‐Gas Cyclone Separators

Fu,

Wu,

Liang

et al. 2023

Chem Eng & Technol

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An improved design was proposed by incorporating helical fins onto the vortex finder, and the impact on the comprehensive performance of the oil‐gas cyclone separator was analyzed based on flow field characteristics. The results revealed that the integration of helical fins led to a slight enhancement in the overall separation efficiency and a significant reduction in pressure drop, thus contributing to the decrease of energy consumption in industrial processes. The orthogonal experimental design (OED) method was utilized for the discussion and optimization of five structural parameters related to the helical fins. This study provides new insights for the design of internal components of oil‐gas separators.

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Identification of energy wastes through sound analysis in compressed air systems

Cited by 11 publications

References 31 publications

A Review of Energy Overconsumption Reduction Methods in the Utilization Stage in Compressed Air Systems

A Review of Energy Overconsumption Reduction Methods in the Utilization Stage in Compressed Air Systems

Exergy Analysis for the Intermittent Air Supply in Pneumatic Machines

Impact of Built‐in Helical Fins on the Performance of Oil‐Gas Cyclone Separators

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