Compressed Air Best Practices - June 2008 - (Page 44) | 06–07/08 Focus Industry PHARMACEUTICALS | REAL WORLD BEST PRACTICES EVALUATION GUIDELINES FOR TWO-STAGE, LUBRICANT-FREE ROTARY SCREW AND MULTI-STAGE (3) CENTRIFUGAL AIR COMPRESSORS Performance of Inlet guide vanes: There is no question that inlet guide vanes lower the power required to produce a lower-than design flow at the same pressures compared to an inlet butterfly valve. Simply put, they are a more efficient “turn down” control than the IBV — usually about 4–6%. Typical three-stage 2,200-scfm centrifugal performance data full to turndown (70%) and same on comparable sized two-stage lubricant free, rotary screw, two-step control, fixed speed. Typical Part Load Performance Comparison TYPE CENTRIFUGAL 2-STAGE ROTARY SCREW Control SCFM full load Turndown Flow FL Pressure kW @ 110 psig full load Cfm/kW/100 psig kW @ 90% load kW @ 80% load kW @ 70% load kW @ 60% load kW @ 50% load kW @ 40% load kW @ 30% load kW @ 20% load Annual Electrical Cost $/cfm full load Total Estimated Annual Electrical Cost @ full load IGV 2,200 scfm 1,550 scfm 110 psig 386 kW 5.71 cfm/kW 344 kW 317 kW 288 kW 1980 scfm 5.75 cfm/kW 1760 scfm 5.65 cfm/kW 1550 scfm 5.38 cfm/kW OL/OL 216 scfm (2218 scfm*) N/A 110 psig 383.5 kW (estimated) (466 bhp) 5.64 cfm/kW 352.82 kW 322 kW 287.6 kW 256.9 kW 230.01 kW 1947 scfm 5.52 cfm/kW 1731 scfm 5.37 cfm/kW 1515 scfm 5.27 cfm/kW 1298 scfm 5.05 cfm/kW 1082 scfm 4.7 cfm/kW 8.56 scfm 4.34 cfm/kW 649 scfm 3.85 cfm/kW 433 scfm 3.23 cfm/kW End of turndown Constant 288 kW at lower flows to production 199.4 kW 168.7 kW 134.2 kW $61.36 cfm/year $135,254/year $62.10 cfm/year $134,378/year For more information contact Hank Van Ormer, tel: 740-862-4112, email: hankvanormer@aol.com, www.airpowerusainc.com 44 www.airbestpractices.com http://www.airpowerusainc.com http://www.airbestpractices.com
Table of Contents Feed for the Digital Edition of Compressed Air Best Practices - June 2008 Compressed Air Best Practices - June 2008 Contents From the Editor Utility-Air News A Pharmaceutical Compressed Air System Audit Talking Dew Point Puerto Rico, Pharmaceuticals and Airequipo Inc. Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison SMC: Managing Energy and Dew Point in Pneumatic Systems Utility Grade Compressed Air Systems Training Calendar & Product Picks Wall Street Watch Advertiser Index Job Market Compressed Air Best Practices - June 2008 Compressed Air Best Practices - June 2008 - (Page Intro) Compressed Air Best Practices - June 2008 - Compressed Air Best Practices - June 2008 (Page Cover1) Compressed Air Best Practices - June 2008 - Compressed Air Best Practices - June 2008 (Page Cover2) Compressed Air Best Practices - June 2008 - Compressed Air Best Practices - June 2008 (Page 3) Compressed Air Best Practices - June 2008 - Contents (Page 4) Compressed Air Best Practices - June 2008 - Contents (Page 5) Compressed Air Best Practices - June 2008 - From the Editor (Page 6) Compressed Air Best Practices - June 2008 - From the Editor (Page 7) Compressed Air Best Practices - June 2008 - Utility-Air News (Page 8) Compressed Air Best Practices - June 2008 - Utility-Air News (Page 9) Compressed Air Best Practices - June 2008 - Utility-Air News (Page 10) Compressed Air Best Practices - June 2008 - A Pharmaceutical Compressed Air System Audit (Page 11) Compressed Air Best Practices - June 2008 - A Pharmaceutical Compressed Air System Audit (Page 12) Compressed Air Best Practices - June 2008 - A Pharmaceutical Compressed Air System Audit (Page 13) Compressed Air Best Practices - June 2008 - A Pharmaceutical Compressed Air System Audit (Page 14) Compressed Air Best Practices - June 2008 - A Pharmaceutical Compressed Air System Audit (Page 15) Compressed Air Best Practices - June 2008 - A Pharmaceutical Compressed Air System Audit (Page 16) Compressed Air Best Practices - June 2008 - Talking Dew Point (Page 17) Compressed Air Best Practices - June 2008 - Talking Dew Point (Page 18) Compressed Air Best Practices - June 2008 - Talking Dew Point (Page 19) Compressed Air Best Practices - June 2008 - Puerto Rico, Pharmaceuticals and Airequipo Inc. (Page 20) Compressed Air Best Practices - June 2008 - Puerto Rico, Pharmaceuticals and Airequipo Inc. (Page 21) Compressed Air Best Practices - June 2008 - Puerto Rico, Pharmaceuticals and Airequipo Inc. (Page 22) Compressed Air Best Practices - June 2008 - Puerto Rico, Pharmaceuticals and Airequipo Inc. (Page 23) Compressed Air Best Practices - June 2008 - Puerto Rico, Pharmaceuticals and Airequipo Inc. (Page 24) Compressed Air Best Practices - June 2008 - Puerto Rico, Pharmaceuticals and Airequipo Inc. (Page 25) Compressed Air Best Practices - June 2008 - Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison (Page 26) Compressed Air Best Practices - June 2008 - Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison (Page 27) Compressed Air Best Practices - June 2008 - Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison (Page 28) Compressed Air Best Practices - June 2008 - Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison (Page 29) Compressed Air Best Practices - June 2008 - Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison (Page 30) Compressed Air Best Practices - June 2008 - Oil-Free Rotary and Oil-Free Centrifugal Compressor Comparison (Page 31) Compressed Air Best Practices - June 2008 - SMC: Managing Energy and Dew Point in Pneumatic Systems (Page 32) Compressed Air Best Practices - June 2008 - SMC: Managing Energy and Dew Point in Pneumatic Systems (Page 33) Compressed Air Best Practices - June 2008 - SMC: Managing Energy and Dew Point in Pneumatic Systems (Page 34) Compressed Air Best Practices - June 2008 - SMC: Managing Energy and Dew Point in Pneumatic Systems (Page 35) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 36) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 37) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 38) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 39) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 40) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 41) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 42) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 43) Compressed Air Best Practices - June 2008 - Utility Grade Compressed Air Systems (Page 44) Compressed Air Best Practices - June 2008 - Training Calendar & Product Picks (Page 45) Compressed Air Best Practices - June 2008 - Training Calendar & Product Picks (Page 46) Compressed Air Best Practices - June 2008 - Wall Street Watch (Page 47) Compressed Air Best Practices - June 2008 - Wall Street Watch (Page 48) Compressed Air Best Practices - June 2008 - Advertiser Index (Page 49) Compressed Air Best Practices - June 2008 - Job Market (Page 50) Compressed Air Best Practices - June 2008 - Job Market (Page Cover3) Compressed Air Best Practices - June 2008 - Job Market (Page Cover4)
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