Estimating Potential Energy Savings in Compressed Air Systems

Dindorf, R.

doi:10.1016/j.proeng.2012.07.026

Cited by 96 publications

(56 citation statements)

References 2 publications

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“…where Q a is a consumption of compressed air in N m 3 /h, Q i is a consumption of dry ice particles in kg/h, and SEC is specific energy consumption for generation of compressed air in kWh/N m 3 (Dindorf, 2012).…”

Section: Novel Quantity For Evaluation Of Energy Intensity Of Dry Icementioning

confidence: 99%

“…Compressed air transports and accelerates dry ice pellets, and helps corrupt the contaminants on the treated surface. However, compressed air is an expensive medium due to a low efficiency of compressors (Dindorf, 2012). Systems working with compressed air usually waste up to 80e93% of supplied energy in the form of heat and/or losses caused by leakages (SEI, 2007), Fig.…”

Section: Introductionmentioning

confidence: 99%

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Efficient use of compressed air for dry ice blasting

Máša

Kuba

2016

Journal of Cleaner Production

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Section: Novel Quantity For Evaluation Of Energy Intensity Of Dry Icementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient use of compressed air for dry ice blasting

Máša

Kuba

2016

Journal of Cleaner Production

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“…80 to 93% of electrical energy used in the electrically driven compressor is converted into heat (Saidur et al, 2012). In the applications, 60% of heat energy can be recovered and used successfully (Dindorf, 2012). This value is higher in oil-free screw compressors.…”

Section: Waste Heat Recoverymentioning

confidence: 99%

“…In his study, Dindorf (2012) examined the potential energy savings in the compressed air line and the calculation methods. In this study, inventory and main operating parameters of the compressed air system should be constituted to define applicable energy saving methods.…”

mentioning

confidence: 99%

Selection of Compressors for Petrochemical Industry in Terms of Reliability, Energy Consumption and Maintenance Costs Examining Different Scenarios

Sapmaz

Kılıç

Eyidoğan

et al. 2015

Energy Exploration & Exploitation

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In this study, based on some important criteria, qualitative and quantitative evaluations were presented for the selection of compressors used in compressed air systems, in a petrochemical industry. Four different scenarios were investigated according to the main criteria considered for the selection of the compressors such as reliability, energy efficiency, investment, and maintenance costs. The types of compressor and their capacities were analyzed and compared. In Scenario I, the currently active electrically driven compressors were considered as backup compressors, instead of them, a new unit turbo compressor and two units of VSD screw compressors were purchased as active compressors. In this scenario, the initial investment cost is low and standby steam consumption is reduced due to the fact that the backup compressors are electrically driven. In Scenario II all active and backup compressors are replaced by a new one, which is proposed to be electrically driven. In this scenario, the initial investment cost is high, but energy consumption is very low. In Scenario III, all active compressors are planned to be replaced by new backup steam-driven compressors. In this scenario, although the initial investment costs and energy consumption are high, the reliability of this scenario is higher than the reliability of Scenarios I and II. In Scenario IV, all compressors are projected to be replaced by new and equivalent compressors. In this scenario, the initial investment cost and energy consumption are high, but the reliability of this scenario is the highest comparing all other scenarios. The aim of this study is to contribute the studies on the selection of compressors by considering some important parameters as their types and capacities, in particular, for industrial enterprises that have risk of explosion like in the petrochemical industry.Keywords: Air compressor selection, Energy consumption, Reliability, Maintenance, Carbon emissions INTRODUCTIONCompressed air is kept under pressure that is greater than atmospheric pressure. It is an energy carrier obtained by compressing atmospheric air through a special machine. Electrical energy is used to produce compressed air. Compressed air is one of the most important industrial inputs after fuel, electricity and water. There are numerous industries using compressed air in a variety of applications. Compressed air is mainly used in instrumentation systems, industrial processes, and hand tools. The electric energy consumption of compressed air systems ranks third in energy costs in the production facilities (Gulec, 1999). For instance, compressed air constitutes 10% of industrial electricity consumption in the European Union (EU) (Saidur et al., 2010). Considering the usage of the compressed air in an industrial facility, only about 5-10% of the energy can be converted into useful energy for the production. Therefore, compressed air consumption is the most expensive form of energy usage in an industrial plant (Yang, 2009). Although compression of air is an in...

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“…Compressors and dryers are the main energy consumers in the systems. Dindorf (2012) stated that when a compressor is installed efficiently, the energy can be saved in all applications. Sapmaz et al (2015) explained that about 90 % of the power used to run the compressors could be recovered as valuable heat energy.…”

Section: Introductionmentioning

confidence: 99%

Unconventional Energy Sources

Demırbas

2016

Waste Energy for Life Cycle Assessment

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Estimating Potential Energy Savings in Compressed Air Systems

Cited by 96 publications

References 2 publications

Efficient use of compressed air for dry ice blasting

Efficient use of compressed air for dry ice blasting

Selection of Compressors for Petrochemical Industry in Terms of Reliability, Energy Consumption and Maintenance Costs Examining Different Scenarios

Unconventional Energy Sources

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