Energy consumption assessment and energy loss analysis in pneumatic system

Maolin, Cai

doi:10.3901/jme.2007.09.069

Cited by 25 publications

(15 citation statements)

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“…transmission power, the expansion of power [9] Similar to compressed air, refrigerant for the heat pump system also has available energy, which would be divided into two parts that transmit energy and pressure energy, which can also be referred to expansion. At the same time, we can gain the transmission power and expansion power.…”

Section: B Refrigerant Heat Pump System Effectively Andmentioning

confidence: 99%

Research on the energy loss characteristics and improving measurement of heat pump

Liu

Cai

Wang

et al. 2011

Proceedings of 2011 International Conference on Fluid Power and Mechatronics

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Through studying of energy loss characteristics of air source heat pump, this paper focused on energy efficiency of current heat pump systems influenced by seasonal temperature and the problem that the energy loss of high pressure refrigerant in the expansion valve can not be effective used, proposing a structure called variable volume and motor-compressor joint shaft mechanism. The structure can fundamentally overcome the shortcomings of poor adaptability in low-temperature environment; besides motor-compressor joint shaft mechanism can retrieve the energy which released in the process of pressure reducing of high-pressure refrigerant, then use the energy in the process of compressing of low-pressure refrigerant, in order to reduce compressor power input, the improved mechanism can greatly increase energy efficiency of heat pumps.

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Section: B Refrigerant Heat Pump System Effectively Andmentioning

confidence: 99%

Research on the energy loss characteristics and improving measurement of heat pump

Liu

Cai

Wang

et al. 2011

Proceedings of 2011 International Conference on Fluid Power and Mechatronics

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“…However, these state quantities of air always satisfy the gas state equation according to assumption (1). By differentiating the state equation with time, the pressure response in the charge and discharge chambers can be obtained as:…”

Section: Gas State Equationmentioning

confidence: 99%

“…Pneumatic systems, which account for industrial energy consumption of 10 to 20 percent [1,2], are inevitably discussed as an energy-saving topic. Low energy efficiency is the main factor restricting the further development of pneumatic systems.…”

Section: Introductionmentioning

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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“…The Chinese government has promulgated a series of energy-saving policies and measures. The pneumatic systems which occupy the total elctricity consumption of the national factories by 10% to 20% (even as high as 35%) will inevitably become the energy conservation object [1]. At present, Energy-saving research is focused on a single pneumatic device in the field of pneumatic system.…”

Section: Introductionmentioning

confidence: 99%

A dispatch method of air compressors based on forecasting consumption

Kong

Song

et al. 2012

IEEE 10th International Conference on Industrial Informatics

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Pneumatic system operation status and problems were analyzed in the industrial production site; Considering the 24 hours as a time unit, the feature of compressed air consumption was studied every 20 seconds in 24 hours in the industrial production site. Then, presenting a forecasting method, which is workable and the overall mean in line with air consumption changes in the law. This forecasting method is for the purpose of the operation dispatching of air compressors in the industrial site, and the forecasting accuracy meets the requirement of air compressors operation dispatching. Finally, with the forecasting consumption of compressed air , a optimal scheduling algorithm of compressor group is given.

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Energy consumption assessment and energy loss analysis in pneumatic system

Cited by 25 publications

References 0 publications

Research on the energy loss characteristics and improving measurement of heat pump

Research on the energy loss characteristics and improving measurement of heat pump

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

A dispatch method of air compressors based on forecasting consumption

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