Compressed Air on Demand

1998 ◽  
Vol 120 (08) ◽  
pp. 74-75
Author(s):  
Michael Valenti
Keyword(s):  
Powder Coating ◽  
Compressed Air ◽  
Automobile Engineering ◽  
Coating Technology ◽  
On Demand ◽  
Service Production ◽  
Compressed Gas ◽  
Air System ◽  
Air Capacity ◽  
Motor Production

This article analyzes that the demand of compressed gas has increased manifold in automobile engineering. A manufacturer of gear motors retrofitted its system to provide a more reliable supply of air, which help reduce its energy bills by over $40,000 a year. When Bodine Electric Co. built a fractional horsepower gear-motor plant in Chicago 35 years ago, management intentionally overbuilt the compressed-air system to serve projected expansion. As it turned out, Bodine’s motor production never came near to stretching its compressed-air system’s capacity, largely because the company replaced its spray-paint delivery system with a powder coating technology. To ensure that compressed-air capacity was more in line with demand, assistance was sought in early 1996 from Chicago-based Commonwealth Edison (ComEd) in purchasing a new compressed-air system. In addition to the annual savings in electricity, the new compressors provide Bodine with a more reliable supply of compressed air. The system is completely backed up, so that even if one air compressor goes completely out of service, production will continue.

Energy Efficiency Based Operation of Compressed Air System on Ships to Reduce Fuel 163 Consumption and CO2 Emission

2019 ◽  
Vol 161 (A2) ◽  
Keyword(s):  
Energy Efficiency ◽  
Fuel Consumption ◽  
Unit Cost ◽  
Leakage Rate ◽  
Compressed Air ◽  
Power Requirement ◽  
Important Indicator ◽  
Operating Load ◽  
Air System ◽  
Potential Energy Saving

Energy efficiency subject has been gaining importance in maritime sector. The compressed air is a valuable energy source in operational manner, by the reason of intrinsic lack of efficiency in pressurization process. Operational pressure and leakage rate are the major variables which affect operational efficiency of the system. This study aims to reveal potential energy saving for the compressed air system. To this end, several pressure ranges, 29-30 bars to 14-18 bars, and different leakage rates 2.4% to 45% are evaluated. After the data was obtained from ships, thermodynamic calculations had been carried out. Optimization of pressure saves 47.3% in daily power requirement, 58,2% in compressed air unit cost, 18.4 and 57.4 tons of reduction in fuel consumption and CO2 emissions in a year respectively. High leakage rates can cause 2.7 times more power and fuel consumption. Finally, operating load, as an important indicator of compressor, makes imperfections identifiable.

scholarly journals Asset Management Perception for Industrial Compressed Air Systems

1996 ◽  
Author(s):  
Henry L. Kemp
Keyword(s):  
Asset Management ◽  
International Market ◽  
Compressed Air ◽  
Market Place ◽  
Air System ◽  
Necessary Evil

It is widely accepted that industrial and commercial electricity users will continue to be increasingly challenged to reduce costs in order to be more competitive in their local, national and international market place. Today’s forward thinking and effective managers are viewing and managing the industrial compressed air system as an asset, not a necessary evil. Paper published with permission.

scholarly journals Increasing Compressed Gas Energy Storage Density Using CO2–N2 Gas Mixture

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2431
Author(s):  
Ahmad Abuheiba ◽  
Moonis R. Ally ◽  
Brennan Smith ◽  
Ayyoub Momen
Keyword(s):  
Energy Storage ◽  
Computer Simulations ◽  
Equilibrium Model ◽  
Compressed Air ◽  
Mixture Composition ◽  
Gas Mixture ◽  
Energy Storage Density ◽  
Storage Density ◽  
Compressed Gas ◽  
Thermodynamic Equilibrium Model

This paper demonstrates a new method by which the energy storage density of compressed air systems is increased by 56.8% by changing the composition of the compressed gas to include a condensable component. A higher storage density of 7.33 MJ/m3 is possible using a mixture of 88% CO2 and 12% N2 compared to 4.67 MJ/m3 using pure N2. This ratio of gases representing an optimum mixture was determined through computer simulations that considered a variety of different proportions from pure CO2 to pure N2. The computer simulations are based on a thermodynamic equilibrium model that predicts the mixture composition as a function of volume and pressure under progressive compression to ultimately identify the optimal mixture composition (88% CO2 + 12% N2). The model and simulations predict that the optimal gas mixture attains a higher energy storage density than using either of the pure gases.

Sign in / Sign up

Export Citation Format

Share Document