Compressed Air Best Practices-August 2008

Focus Industry COMPRESSED AIR AUDITS | 08/08 | McIntire isMoving FForward Movi Moving orwar d Movin Forward Moving orwar d ovin orward ving Compressed Air Best Practices™ interviewed Dan Keilitz (National Sales Manager) of McIntire Inc. Good afternoon. What is new at McIntire? Good afternoon. This is an exciting time at McIntire due to our investments in the industrial compressed air treatment business. The investments include a new cycling refrigerated air dryer line, a new non-cycling refrigerated air dryer line and a “next-day” delivery program nationwide. Please describe the new cycling air dryer. The new Eco Cycle™ cycling air dryer we introduced responds to the higher energy costs that our customers continue to experience. The cycling dryer has the capability of cycling the refrigeration compressor on and off in response to compressed air load conditions. When the facility is at no load or partial load during the second and third shifts, the refrigeration compressor will turn off and reduce the kW consumption of the machine. This is in contrast to a non-cycling design, which continues drawing 100% of power whether or not the factory is demanding compressed air. The dryer is able to save energy due to the thermal mass system it deploys. The R-134a refrigerant cools the glycol/water thermal mass in the gasket-sealed media tank via a copper-coil heat exchanger. This thermal mass is cooled to 35 °F. The refrigeration system uses a direct expansion valve versus a capillary tube for more reliable performance. A hot-gas bypass valve is used to control refrigeration pressure and prevent freeze-ups. The compressed air enters the media tank and is cooled to dew point requirements in a second braze-plate stainless steel heat exchanger. Condensation of the moisture occurs in the compressed air stream as it cools and the droplets are removed by a sintered bronze filter element in the moisture separator. McIntire’s new Eco Cycle™ cycling air dryer. Will the product qualify for energy rebates? Yes. The design is the “cycling air dryer” technology which utility companies approve for their incentive programs. The reality of compressed air installations is that most systems are operating at partial loads. Most are not even operating during the third shift! We have launched the first models ranging in size between 125 and 500 scfm. We are working on the next models, which will go to 1,000 scfm. Our longer-term plans are to offer Eco Cycle™ cycling air dryers through 2,000 scfm. www.airbestpractices.com 45 http://www.airbestpractices.com

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

Compressed Air Best Practices- August 2008 Contents From the Editor Utility-Air News The August Audit of the Month: A Vacuum System Audit Energized for Savings at Seattle City Light and Tacoma Power Know Your System CASE: Compressed Air Supply Efficiency Ecos Air: Managing Incentive Programs Kaeser Compressors: Loyalty, Energy and Growth Building Relationships at Cummins-Wagner McIntire is Moving Forward The 2008 A.I.C.D. Conference & Exhibition Tuthill Vacuum and Blower Systems Resources for Energy Engineers: Training Calendar & Product Picks Wall Street Watch Advertiser Index Job Market

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