Compressed Air Best Practices - April 2008 - (Page 13) Focus Industry PLASTICS BLOW-MOLDING | 04/08 | This will require additional storage and pressure control. A pressure flow controller will respond to changes in demand by modulating the flow control valve to match the down stream requirements. This is different from a regulator in that it does not introduce a fixed pressure drop in the system to limit maximum pressure but rather controls flow across the valve to match the demand and maintain a fixed pressure on the demand side. This creates useful storage in the new tank, which can then be used to satisfy short peaks in demand and provide time to start and stop compressors as necessary. The new receiver should be a 5,000-gallon tank (min. 750 MAWP) and should be located after the dryers and filters but just upstream of the flow controller in the main compressor room. The tank can be located outside the room on the existing pad that holds the plastic silos. This size receiver provides 46 cf/psi of useful storage with a pressure range of 50 psig. It can provide 2300 scf of air before it is necessary to start a compressor. In terms of protecting productivity, this storage will provide over 80 seconds to auto-start a backup compressor when one of the larger three-stage recip compressors fails. Pressure Gradient Automation The opportunity for energy savings in this system is significant and can provide a very attractive return on investment while providing a system that is clean, dry and more stable in pressure. The energy savings revolve around stabilizing the pressure to eliminate artificial demand and production variations at the molding machines and providing an automation system to minimize the compressor power required to support the rapidly changing demand for air. 13 http://www.coaire.com http://www.coaire.com
Table of Contents Feed for the Digital Edition of Compressed Air Best Practices - April 2008 Compressed Air Best Practices - April 2008 Contents From the Editor Utility-Air News The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations AF Compressors: Focused on 40 Bar, Oil-Free Air for the PET Industry Real World Best Practices: PET Plants Using Boosters for High-Pressure Air Guaranteeing Audit ROI for Blow-Molders Managing Vacuum Pressure Differential Are You Taking Full Advantage of Pneumatic Valve Technology? Are You Strategic? Resources for Energy Engineers: Training Calendar & Product Picks Wall Street Watch Advertiser Index Job Market Compressed Air Best Practices - April 2008 Compressed Air Best Practices - April 2008 - Compressed Air Best Practices - April 2008 (Page Cover1) Compressed Air Best Practices - April 2008 - Compressed Air Best Practices - April 2008 (Page Cover2) Compressed Air Best Practices - April 2008 - Compressed Air Best Practices - April 2008 (Page 3) Compressed Air Best Practices - April 2008 - Contents (Page 4) Compressed Air Best Practices - April 2008 - Contents (Page 5) Compressed Air Best Practices - April 2008 - Contents (Page 6) Compressed Air Best Practices - April 2008 - From the Editor (Page 7) Compressed Air Best Practices - April 2008 - Utility-Air News (Page 8) Compressed Air Best Practices - April 2008 - Utility-Air News (Page 9) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 10) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 11) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 12) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 13) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 14) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 15) Compressed Air Best Practices - April 2008 - The Compressed Air Audit of the Month: Minimizing Blow-Molding Pressure Fluctuations (Page 16) Compressed Air Best Practices - April 2008 - AF Compressors: Focused on 40 Bar, Oil-Free Air for the PET Industry (Page 17) Compressed Air Best Practices - April 2008 - AF Compressors: Focused on 40 Bar, Oil-Free Air for the PET Industry (Page 18) Compressed Air Best Practices - April 2008 - AF Compressors: Focused on 40 Bar, Oil-Free Air for the PET Industry (Page 19) Compressed Air Best Practices - April 2008 - AF Compressors: Focused on 40 Bar, Oil-Free Air for the PET Industry (Page 20) Compressed Air Best Practices - April 2008 - AF Compressors: Focused on 40 Bar, Oil-Free Air for the PET Industry (Page 21) Compressed Air Best Practices - April 2008 - Real World Best Practices: PET Plants Using Boosters for High-Pressure Air (Page 22) Compressed Air Best Practices - April 2008 - Real World Best Practices: PET Plants Using Boosters for High-Pressure Air (Page 23) Compressed Air Best Practices - April 2008 - Real World Best Practices: PET Plants Using Boosters for High-Pressure Air (Page 24) Compressed Air Best Practices - April 2008 - Real World Best Practices: PET Plants Using Boosters for High-Pressure Air (Page 25) Compressed Air Best Practices - April 2008 - Real World Best Practices: PET Plants Using Boosters for High-Pressure Air (Page 26) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 27) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 28) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 29) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 30) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 31) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 32) Compressed Air Best Practices - April 2008 - Guaranteeing Audit ROI for Blow-Molders (Page 33) Compressed Air Best Practices - April 2008 - Managing Vacuum Pressure Differential (Page 34) Compressed Air Best Practices - April 2008 - Managing Vacuum Pressure Differential (Page 35) Compressed Air Best Practices - April 2008 - Are You Taking Full Advantage of Pneumatic Valve Technology? (Page 36) Compressed Air Best Practices - April 2008 - Are You Taking Full Advantage of Pneumatic Valve Technology? (Page 37) Compressed Air Best Practices - April 2008 - Are You Taking Full Advantage of Pneumatic Valve Technology? (Page 38) Compressed Air Best Practices - April 2008 - Are You Taking Full Advantage of Pneumatic Valve Technology? (Page 39) Compressed Air Best Practices - April 2008 - Are You Strategic? (Page 40) Compressed Air Best Practices - April 2008 - Are You Strategic? (Page 41) Compressed Air Best Practices - April 2008 - Are You Strategic? (Page 42) Compressed Air Best Practices - April 2008 - Are You Strategic? (Page 43) Compressed Air Best Practices - April 2008 - Resources for Energy Engineers: Training Calendar & Product Picks (Page 44) Compressed Air Best Practices - April 2008 - Resources for Energy Engineers: Training Calendar & Product Picks (Page 45) Compressed Air Best Practices - April 2008 - Wall Street Watch (Page 46) Compressed Air Best Practices - April 2008 - Wall Street Watch (Page 47) Compressed Air Best Practices - April 2008 - Wall Street Watch (Page 48) Compressed Air Best Practices - April 2008 - Advertiser Index (Page 49) Compressed Air Best Practices - April 2008 - Job Market (Page 50) Compressed Air Best Practices - April 2008 - Job Market (Page Cover3) Compressed Air Best Practices - April 2008 - Job Market (Page Cover4)
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