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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


A Compressed Air Piping System Assessment

Compressed Air Best Practices, June 2016, by Gary Wamsely.
http://www.airbestpractices.com/system-assessments/pipingstorage/compressed-air-piping-system-assessment

"During an Energy Review at a relatively new health care garment factory, in the Southwest, we found all three of the 100 psig nominally rated rotary screw air compressors were operating at 115-120 psig continuously. We asked the Production Superintendent if this was normal or if something had recently changed. He explained that initially they operated two air compressors but had to begin running the 3rd unit in ‘trim’ mode after some converting machines were up-graded. Then, a new larger converting machine was recently installed and air pressure quickly became a production issue. Since capital funds were tight, the project engineering team determined the third air compressor had sufficient capacity."

Don’t Skip the Most Important Meeting of Your Energy Project

Compressed Air Best Practices, May 2016, by John Molnar.
http://www.airbestpractices.com/system-assessments/end-uses/don%E2%80%99t-skip-most-important-meeting-your-energy-project

"A meeting between the auditor, incenting organization, vendor, and end user can help maximize the benefits of any energy-saving project."

Cooking Oil Factory Combines Compressed Air Systems to Save 36%

Compressed Air Best Practices, Apr. 2016, by Ron Marshall.
https://www.airbestpractices.com/system-assessments/end-uses/cooking-oil-factory-combines-compressed-air-systems-save-36

"To produce healthy, high-quality cooking oil, this food processing company crushes and processes oil seeds shipped in from local farms. To increase the energy efficiency of its oil seed crushing and processing facility, the company optimized its compressed air system by combining three separate systems into one."

Innovative Energy Program Assessments at Darigold

Compressed Air Best Practices, Apr. 2016, by Clinton Shaffer.
https://www.airbestpractices.com/energy-manager/corporate-sustainability-programs/innovative-energy-program-assessments-darigold

"Darigold, a farmer-owned dairy co-op located in the Pacific Northwest, has the happy cows, but production is more sophisticated. The company has eleven state-of-the-art production facilities churning out high-quality dairy products at mind-boggling rates. To maintain efficient production at scale, Darigold also has an innovative energy management program in place."

Innovative Blow Molds Reduce Compressed Air Pressure in PET Blow Molding

Compressed Air Best Practices, Mar. 2016, by Vincent Duvernois,  Stephane Larcade, and Jean Pilnard.
http://www.airbestpractices.com/industries/plastics/innovative-blow-molds-reduce-compressed-air-pressure-pet-blow-molding

"Technological trends in plastics manufacturing are driving the costs of production down. In industrial PET blow molding specifically, two innovative techniques have had major impacts over the last 15 years: “light weighting” the plastic bottles, and recirculating high-pressure compressed air. Both have helped to improve the energy efficiency of PET blow molding by reducing compressed air requirements dramatically."

Is Your Desiccant Dryer Running Efficiently?

Plant Services, Jan. 2016, by Ron Marshall.
http://www.plantservices.com/articles/2015/is-your-desiccant-dryer-running-efficiently/

"Pity the neglected air dryer: Much time and attention is paid to efficiently controlling air compressors, but often the control of air dryers gets ignored. If your plant has desiccant dryers, it's important to manage their operation effectively, too, in order to get the maximum return from your compressed-air efficiency efforts."

Using ISO 8573-1 to Test Compressed Air: Clearing the Confusion

Compressed Air Best Practices, Jan/Feb 2016, by Ruby Ochoa.
http://www.airbestpractices.com/industries/food/using-iso-8573-1-test-compressed-air-clearing-confusion

"Compressed air is used in more than 70 percent of all manufacturing activities, ranging from highly critical applications that may impact product quality to general “shop” uses. When compressed air is used in the production of pharmaceuticals, food, beverages, medical devices, and other products, there seems to be confusion on what testing needs to be performed. By defining compressed air contaminants, reviewing ISO 8573-1, and discussing how to designate a quality class per ISO 8573-1, this article will help clear up some of that confusion."

Meat Processing Plant Drops Compressed Air Costs 60%

Compressed Air Best Practices, Jan/Feb 2016, by Ron Marshall.
http://www.airbestpractices.com/system-assessments/end-uses/meat-processing-plant-drops-compressed-air-costs-60

"One of the statements made in the Compressed Air Challenge’s Fundamentals of Compressed Air Systems seminar is that improvements can always be made to every compressed air system, including new ones. The statement definitely applies to a Canadian pork processing facility built a few years ago. This article is based on a compressed air audit performed two years into the life of a brand new plant. The audit found numerous problems and made recommendations that helped reduce plant compressed air operating costs by 60 percent."

A Systems Approach Helps Rockline Industries Retrofit a Compressed Air System

Compressed Air Best Practices, Jan/Feb 2016, by Andrew Chase Harding and Darin Nutter.
http://www.airbestpractices.com/industries/paper/systems-approach-helps-rockline-industries-retrofit-compressed-air-system

"Rockline Industries is one of the largest global producers of consumer products, specializing in wet wipes and coffee filters. The company contacted the Arkansas Industrial Energy Clearinghouse after identifying that the compressed air system in their Springdale, Arkansas facility was a potential source of significant savings. Experts from the Clearinghouse then began working with Rockline Industries, representatives of the electric utility, and a local compressed air vendor to perform a complete evaluation of the system."

10 Little-Known VSD Air Compressor Tweaks

Compressed Air Best Practices, Nov. 2015, by Ron Marshall for the Compressed Air Challenge.
http://www.airbestpractices.com/technology/compressor-controls/10-little-known-vsd-air-compressor-tweaks

"The introduction of rotary screw air compressors controlled by variable speed drives (VSDs) is one of the best energy efficiency innovations introduced to the industry in the past few years. This style of compressor control can significantly reduce the energy wasted by compressors running in the unloaded condition. But the type of VSD control offered by various manufacturers can differ, and some of these differences can affect the efficiency of the system. This article discusses some little known tweaks to VSD compressor control, including some using hidden features that can sometimes be implemented to enhance the savings gained by the installation of this type of compressor."
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