Compressed Air Best Practices - March 2008 - (Page 7)

Compressed Air Industry FOOD PROCESSING | 03/08 | FROM THE EDITOR Auditing and Air Quality We are fortunate, in this March 2008 edition, to be able to publish two exceptional auditing stories on factories in the food processing industry. The work done by the auditors, the plant energy engineers, and the local utilities (with rebate funding) is inspirational. We also have articles on Air Quality, which is, of course, important to food processing. The articles cover dewpoint measurement, process air refrigerated dryers and compressed air filtration. An audit of Midwest Bakery by Mr. Jim Timmersman of Power Supply Industries walks us through a very “typical” audit. Multiple rotary screw air compressors are operating independently in three different compressor rooms. Air treatment problems exist and there is little storage for compressed air. When the plant wants to expand, engineering requests an additional rotary screw compressor. The audit shows that with synchronizing the rotary screw compressors and introducing storage and flow control solutions, the existing system is more than enough for the plant expansion. The March Audit of the Month reviews the audit performed by Mr. Andrew Balberg of HSI at a bakery ingredient processor in Canada. The opportunities in the low-pressure air system, in their yeast production process, lay in the fluctuating demand characteristics of the installation. Energy savings of 6,793,000 kWh per year worth $543,440 per year were realized with the installation of HSI centrifugal blowers equipped with VFDs. kW CO2 O Air Quality in terms of dry air remains elusive at many factories. Drying the air to a specified dewpoint is not as simple as it might seem. Mr. Donald Van Ormer provides us with an article, which discusses dewpoint measurement devices and (particularly for food processing industries) recommends point-of-use dewpoint measurement. ZEKS provides us with an interesting article which outlines the options in the market for refrigerated air dryers and discusses the benefits of multi-module refrigerated air dryers for process air. Air Quality provided by filtration is of critical importance to remove solid contaminants and liquids (notably oil). Solberg Manufacturing provides us with interesting information on their range of intake filters for air compressor and vacuum systems. Numatics also provides us with an article on how coalescing filters do their job and an overview of how they build filter elements to get the job done. In closing I’d like to thank you, the readers, for the overwhelming response you’ve given to our digital magazine. Thanks go, in particular, to the large number of international readers for whom we’re happy to be able to provide the magazine quickly now with just the push of a button. ROD SMITH www.airbestpractices.com 7 http://www.belairtech.net http://www.belairtech.net http://www.belairtech.net http://www.airbestpractices.com

Table of Contents Feed for the Digital Edition of Compressed Air Best Practices - March 2008

Compressed Air Best Practices - March 2008 Contents From the Editor Utility-Air News The Compressed Air Audit of the Month: Saving Energy with Blowers in Canada Do You Provide World-Class Service? Managing Rotary Screw Air Compressors at Midwest Bakery The Difference Between Acfm and Scfm for Proper Vacuum Sizing Best Practices — Multi-Module Process Air Dryers The Vacuum Formation Process in Building Compressed Air Filter Elements Solberg Manufacturing Real World Best Practices: Measuring Pressure Dewpoint in a Compressed Air System Resources for Energy Engineers: Training Calendar & Product Picks Wall Street Watch Advertiser Index Job Market

Compressed Air Best Practices - March 2008

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