Energy Efficiency of Compressed Air Systems

Mousavi, Smaeil; Kara, Sami; Kornfeld, Bernard

doi:10.1016/j.procir.2014.06.026

Cited by 116 publications

(48 citation statements)

References 3 publications

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“…Instead of using throttles, bypasses, dampers, and alike, the use of variable frequency drives (VFDs) is an energy efficient way to manage the motors more precisely, meeting the specific demand by speeding up or down. 70,71 However, the economics of VFD need to be carefully studied before implementation because this equipment incurs additional costs and the VFD unit causes additional energy use. For pumps and fans, VFDs bring relatively large power reductions by even small reductions in shaft speed.…”

Section: A24 | Variable Frequency Drivesmentioning

confidence: 99%

Cost‐effectiveness analysis of energy efficiency measures in the Swiss chemical and pharmaceutical industry

Zuberi

Patel

2018

Int J Energy Res

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Summary Energy efficiency improvement is an effective way of reducing energy demand and CO2 emissions. Although the overall final energy savings potential in chemical industry has been estimated in a few countries, energy efficiency potentials by concrete measures applicable in the sector have been scarcely explored and their associated costs are hardly analyzed. In Switzerland, the production of chemicals and pharmaceuticals exceeds all other industrial sectors in terms of energy use and CO2 emissions, and it accounted for 22% of the total industry's overall final energy demand and 25% of the CO2 emissions related to non‐renewable energy sources in 2016. In this study, the economic potentials for energy efficiency improvement and CO2 emissions reduction in the Swiss chemical and pharmaceutical industry are investigated in the form of energy efficiency cost curves. The economic potential for final energy savings and CO2 abatement based on energy‐relevant investments is estimated at 15% and 22% of the sector's final energy use and fossil fuel‐related CO2 emissions in 2016, respectively. Measures related to process heat integration are expected to play a key role for final energy savings. The economic electricity savings potential by improving motor systems is estimated at 15% of the electricity demand by these systems in 2016. The size of economic potential of energy efficiency improvement across the sector decreases from 15% to 11% for 0.5 times lower final energy prices while the size increases insignificantly for 1.5 times higher final energy prices. The additional power generation potential based on Combined Heat and Power plants is estimated at 14 MW for 2016. This study is a contribution to the so far limited international literature on economic energy efficiency measures applicable in this heterogeneous sector and can support policy development. The results for specific costs of energy efficiency measures can also be adapted to other parts of the world by making suitable adjustments which in return may provide useful insights for decision makers to invest in economically viable clean energy solutions.

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Section: A24 | Variable Frequency Drivesmentioning

confidence: 99%

Cost‐effectiveness analysis of energy efficiency measures in the Swiss chemical and pharmaceutical industry

Zuberi

Patel

2018

Int J Energy Res

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“…The following operations were highlighted: [8,9] Energy costs during the utilization time of a compressor may reach more than 75% of the total cost during life cycle (as shown in Figure 3). It has been claimed that improvements within energy efficiency of compressors can bring energy savings in amount of 20-50% energy used for their running [10,11].…”

Section: Compressed Air In Industrymentioning

confidence: 99%

The study on the heat recovery from air compressors

Broniszewski¹,

Werle

2018

E3S Web Conf.

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Effective use of utilities in production plants is an issue that is becoming increasingly significant in energy policy of Europe. Production of compressed air consumes 3% of the total electricity consumption in Europe. In order to produce compressed air, approximately 10-20% of electricity transferred to compressor is used, the rest is lost due to lack of tightness and heat losses. The aim of this work is to evaluate the possibility to install recovery systems on air compressors to recover the lost waste heat and its management for the needs of heating office buildings/production halls and analysis of investment profitability. The investment will be supported by co-financing in the form of energy efficiency certificates (so-called white certificates), which the production plant will be able to sell after receiving them from Polish Energy Regulatory Office in return for completing an investment that consists recovering waste heat from air compressors.

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“…However, among them, there is not a single method associated with selection of a rational way of braking and positioning of the working member of the pneumatic motor from the point of view of energy saving. One way to save compressed air for the entire enterprise is proposed in [4]. It involves refusal to use a single compressor and the synchronization of activation and deactivation of a group of compressors depending on consumption of compressed air in the enterprise network.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improving power efficiency of pneumatic logistic complex actuators through selection of a rational scheme of their control

Krutikov

Stryzhak

2018

EEJET

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Визначена структура пневмопривода для автоматизації логістичних комплек сів, що ґрунтується на зміні комутаційних зв'язків, яка забезпечує ефективне вико ристання працездатності стисненого пові тря. Проведений кількісний і якісний ана ліз втрат енергії у пневмоприводі. Виділена область застосування енергозберігаючої схеми пневмопривода, яка дозволяє реалізу вати інерційні навантаження, що у 10 разів вищі допустимих навантажень при дро сельному гальмуванні, і підвищити надій ність його роботиКлючові слова: пневмоприводи, гальму вання, структура комутаційних зв'язків, збільшення інерційних навантажень Определена структура пневмопривода для автоматизации логистических комп лексов, основанная на изменении коммута ционных связей, обеспечивающая эффек тивное использование работоспособности сжатого воздуха. Проведен количествен ный и качественный анализ потерь энергии в пневмоприводе. Выделена область при менения энергосберегающей схемы пневмо привода, которая позволяет реализовать инерционные нагрузки, в 10 раз превышаю щие допустимые нагрузки при дроссельном торможении, и повысить надежность его работыКлючевые слова: пневмоприводы, тор можение, структура коммутационных свя зей, увеличение инерционных нагрузок UDC 621.5

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Energy Efficiency of Compressed Air Systems

Cited by 116 publications

References 3 publications

Cost‐effectiveness analysis of energy efficiency measures in the Swiss chemical and pharmaceutical industry

Cost‐effectiveness analysis of energy efficiency measures in the Swiss chemical and pharmaceutical industry

The study on the heat recovery from air compressors

Improving power efficiency of pneumatic logistic complex actuators through selection of a rational scheme of their control

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