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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.

 

Category: Compressed Air Systems

Compressed Air Systems


Maximizing Dust Collection System Efficiency

Compressed Air Best Practices, June 2015, by Hank van Ormer.
http://www.airbestpractices.com/system-assessments/air-treatmentn2/maximizing-dust-collection-system-efficiency

"A commonly overlooked area of inefficient compressed air use is dust collector pulse-jet cleaning — either bag (sock) type, or reverse flow filter type. Dust collector systems are vital to many plant operations, particularly with respect to meeting both indoor and outdoor air quality standards. They are also often used to collect income-producing product. At the heart of a pulse-jet type dust collector is the proper installation and availability of compressed air."

Determining the Economic Value of Compressed Air Measurement Systems

Compressed Air Best Practices, June 2015, by Tim Dugan.
http://www.airbestpractices.com/technology/instrumentation/determining-economic-value-compressed-air-measurement-systems

"A common adage that has been quoted many times in this journal is: “If you don’t measure it, you can’t manage it.” This is partly true. It assumes that managers are willing and able to manage the costs and reliability of their compressed air system. Without data, however, they can’t do an effective job. But because managers are at times already overwhelmed with data, more data doesn’t automatically make them a better manager. A better way of saying it is: 'Appropriate measurement can make you a better manager.'"

The Challenges of Auditing Compressed Air in Chemical and Petrochemical Plants

Compressed Air Best Practices, May 2015, by Paul Edwards.
http://www.airbestpractices.com/system-assessments/pressure/challenges-auditing-compressed-air-chemical-and-petrochemical-plants

"Compressed air audits for chemical and petrochemical plants have many characteristics in common with audits in other industries, but there are some differences in the way these businesses run that impact the goals of the typical audit and how that audit is conducted. In chemical and petrochemical facilities, the reason for auditing the demand side is different than that of other industries."

Centrifugal Air Compressor Basics: Deciphering Manufacturer Performance Curves

Compressed Air Best Practices, May 2015, by Hank van Ormer.
http://www.airbestpractices.com/technology/air-compressors/centrifugal-air-compressor-basics-deciphering-manufacturer-performance-cu

"In general, this article focuses on the operating principles of centrifugal air compressors, discussing them in simple terms to provide an understanding of application limitations and opportunities. One primary goal is to define often-confusing terminology, such as 'rise to surge,' 'stonewall and surge,' 'mass flow,' and 'dynamic compression.'"

Growing Factory Experiences Air Compressor Control-Gap Issues

Compressed Air Best Practices, Apr. 2015, by Ron Marshall.
http://www.airbestpractices.com/system-assessments/compressor-controls/growing-factory-experiences-air-compressor-control-gap-issues

"This case study illustrates the importance of verifying the installation after the installation by monitoring the system with data loggers. Sometimes, even with the best intentions, the conditions that exist and the limitations of the control system can cause the system to run inefficiently."

Cooling Tower System Audit for a Tough Mining Compressed Air Application

Chiller & Cooling Best Practices, Mar. 2015, by Tim Dugan.
http://www.coolingbestpractices.com/industries/manufacturing/cooling-tower-system-audit-tough-mining-compressed-air-application

"The goals of this article are to describe a large mining compressed air system case study and from a cooling perspective, discuss the limiting factors and performance issues of each of the cooling subsystems, and recommend improvements to the case-study project that will make the system much more reliable."

11 Key Considerations For Selecting a PET Air Compressor System

Compressed Air Best Practices, Mar. 2015, by Pete Rhoten.
http://www.airbestpractices.com/industries/plastics/11-key-considerations-selecting-pet-air-compressor-system

"PET [polyethylene terephthalate] air systems started out with three-stage, air-cooled, lubricated piston units in multiple quantities for smaller systems and water-cooled, oil-free, three-stage or two-stage boosters for the larger systems. Over the last ten years, four-stage centrifugals have become a popular base-load air compressor, and smaller companies have embraced air-cooled, single-stage lubricated boosters. The king of the hill is still the three-stage, water-cooled, oil-free piston machine."

Go with the Flow: How Flow Meters Can Help Improve Plant Efficiency

Compressed Air Best Practices, Mar. 2015, by Scott A. Williams.
http://www.airbestpractices.com/technology/instrumentation/go-flow-how-flow-meters-can-help-improve-plant-efficiency

"Plug an electrical device into an outlet. Does it work? Great! For some people that’s all that matters. When it comes to compressed air, many manufacturing plants operate the same way. As long as there is enough air, that’s all that matters. But what if cost control also matters to your company? Smart compressed air users may already know how much air they’re producing, but they also want to know how much air they’re using—and whether they’re using it productively. To find out, they’re taking accurate, real-time measurements using flow meters."

Foundry Air Compressors Out of Control

Compressed Air Best Practices, Dec. 2014, by Ron Marshall for the Compressed Air Challenge.
http://www.airbestpractices.com/system-assessments/compressor-controls/foundry-air-compressors-out-control

"Quite a number of worst-case compressed air scenarios have been encountered over the years but none may compare to the conditions that existed in a metal foundry somewhere in North America. For reasons you are about to discover, we will not reveal the name of this factory or its location, in order to protect the innocent from embarrassment."

Compressed Air Supply at a Metal Machining Plant

Compressed Air Best Practices, Nov. 2014, by Don van Ormer.
http://www.airbestpractices.com/system-assessments/compressor-controls/compressed-air-supply-metal-machining-plant

"This metal fabrication and machining facility produces high-quality precision-built products. Over the years, the plant has grown and there have been several expansions to the current location. The company currently spends $227,043 annually on energy to operate the compressed air system....The set of projects recommended, as a result of the system assessment, could reduce these energy costs by $89,092 or 39%."
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