Compressed Air Best Practices - May 2008 - (Page 14)

| 05/08 Compressed Air Industry AUTOMOTIVE ASSEMBLY | COMPRESSED AIR AUDIT OF THE MONTH Saving Energy in Automotive Assembly The flow measuring equipment used in this survey was an Insertion Mass Flow Meter calibrated for the corresponding pipe size transmitting a -5 to +5 VDC signal. The signal was transformed into meaningful data and a data sample was recorded every 0.5 seconds. Data was then transferred onto computers and analyzed with printout data summaries and data details. The audit has reviewed the approximate surge flows at various distribution points to identify possible problems with pressure drop. The information gathered in this study indicates the plants ability to run at substantially lower pressure than the compressor rating of 110 psig. We used pressure transducers and calibrated gauges to test the facility’s compressed air system for static and dynamic air pressure. This test provides insight into the actual air pressure being delivered to the points of use, typically less than thought or shown on air regulator gauges, or other pressure gauges located throughout the compressed air system. This facility has very good main header distribution lines with some major problems in sub-headers with static versus dynamic pressure. The second objective in the test is to determine the compressed air system’s potential for an energy-saving flow controller application. Throughout our time walking through the facility, we asked different personnel what they thought the minimum acceptable air pressure required for their application was. The acceptable range was from a high of 90 psig to a low of 85 psig. CO2 O Peaks and valleys in air demand can be managed efficiently by air storage and flow controllers. kW The probe locations and measurements were as follows: CFM PROBE LOCATIONS HIGH LOW AVG HIGH PSI LOW AVG Main 12" Line Base Coat Dryer # 1 Base Coat Dryer #2 Base Coat Dryer #3 Clear Coat Dryer #1 Clear Coat Dryer #2 Powder Coat Dryer Body Shop #1 Body Shop #2 Body Shop #3 Old Filter Location 6" Paint Feed Line #1 6" Paint Feed Line #2 23,551 1,853 1,116 842 1,304 1,017 1,986 700 1,497 907 2,248 2,572 2,703 5,714 1,389 937 486 695 614 365 408 978 636 1,336 1,414 1,814 13,540 1,702 1,009 755 904 648 1,397 609 1,336 793 1,874 2,086 2,407 99 94 94 94 92 93 94 95 95 95 95 95 94 92 93 93 93 89 90 84 94 93 87 93 93 93 96 93 94 94 91 92 92 94 94 95 95 94 94 14 www.airbestpractices.com http://www.airbestpractices.com

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

Compressed Air Best Practices - May 2008 Contents From the Editor Utility-Air News The Compressed Air Audit of the Month Pneumatics Real World Best Practices Delta Industries: Doing What is Right for Customers Delta Industries: Six Truths You Need to Know about Really Putting the Customer First Power Supply Industries Resources for Energy Engineers Wall Street Watch Advertiser Index Job Market

Compressed Air Best Practices - May 2008

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.