Compressed Air Best Practices - March 2009 - (Page 32) ® | 03/09 Focus Industry ENERGY MANAGEMENT | SEVEN SUSTAINABILITY PROJECTS FOR INDUSTRIAL ENERGY SAVINGS Step #3: Opportunities to Reduce Cost What are some of the opportunities to reduce cost in this sample model? Reduce the roof exhaust air by reversing the flow of the roof exhaust units and distributing the air into the roof area of the factory using flexible distribution ducting as shown in the photo below. Our model factory was under negative pressure and drawing in cold air from the truck bays and other doors, windows and cracks. This caused the need for local heaters while hot air was going out the roof. Reducing the exhaust air by 30,000 cfm at $1.00/cfm will save $30,000 per year. A plant in central Ohio recently applied these principals, and even though the 2008/2009 winter has been extra cold, they have not run the large steam boiler system yet this year to heat the manufacturing areas. Shutting down excess exhaust hoods during periods of reduced production can also help reduce the heating costs. Twenty (20) exhausters could be shut down for 80 hours per week (50% of the time): 20 exhausters x 1,500 cfm/exhauster x $1.00/cfm x 50% of the time = $15,000 of savings per year Look for any areas where the exhaust flow can be reduced during periods of reduced production. Conclusion: Exhausting air is expensive. Every cubic foot of air that is exhausted means an equal cubic foot of air must be returned. If it is cold outside and you have to heat this return air, the costs could be tremendous. Challenge everyone in your facility to look for excess exhaust air, opportunities to supply fresh air to hot areas and to find ways to shut down or slow down roof exhausts during winter months. For more information, please contact Thomas Mort, CEM, Thomas Mort Consulting: tel: 210-858-8454, email: tcmort@savingwithenergy.com, www.savingwithenergy.com Fresh air make-up tubes and fans can be used to distribute the cold air from outside and mix it with the warm ceiling air. These systems help reduce negative pressure problems and can significantly reduce the winter heating costs. 32 www.airbestpractices.com http://www.savingwithenergy.com http://www.airbestpractices.com
Table of Contents Feed for the Digital Edition of Compressed Air Best Practices - March 2009 Compressed Air Best Practices - March 2009 Contents From the Editor Utility-Air News Compressed Air Audit of the Month Air Standards Assessment Improves Electroplater Production and Saves Energy Demand-Side System Optimization Seven Sustainability Projects for Industrial Energy Savings Personal Productivity Resources for Energy Engineers Wall Street Watch Advertiser Index Classifieds Compressed Air Best Practices - March 2009 Compressed Air Best Practices - March 2009 - Compressed Air Best Practices - March 2009 (Page Cover1) Compressed Air Best Practices - March 2009 - Compressed Air Best Practices - March 2009 (Page Cover2) Compressed Air Best Practices - March 2009 - Compressed Air Best Practices - March 2009 (Page 3) Compressed Air Best Practices - March 2009 - Contents (Page 4) Compressed Air Best Practices - March 2009 - Contents (Page 5) Compressed Air Best Practices - March 2009 - From the Editor (Page 6) Compressed Air Best Practices - March 2009 - Utility-Air News (Page 7) Compressed Air Best Practices - March 2009 - Utility-Air News (Page 8) Compressed Air Best Practices - March 2009 - Utility-Air News (Page 9) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 10) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 11) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 12) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 13) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 14) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 15) Compressed Air Best Practices - March 2009 - Compressed Air Audit of the Month (Page 16) Compressed Air Best Practices - March 2009 - Air Standards (Page 17) Compressed Air Best Practices - March 2009 - Air Standards (Page 18) Compressed Air Best Practices - March 2009 - Air Standards (Page 19) Compressed Air Best Practices - March 2009 - Air Standards (Page 20) Compressed Air Best Practices - March 2009 - Assessment Improves Electroplater Production and Saves Energy (Page 21) Compressed Air Best Practices - March 2009 - Assessment Improves Electroplater Production and Saves Energy (Page 22) Compressed Air Best Practices - March 2009 - Assessment Improves Electroplater Production and Saves Energy (Page 23) Compressed Air Best Practices - March 2009 - Demand-Side System Optimization (Page 24) Compressed Air Best Practices - March 2009 - Demand-Side System Optimization (Page 25) Compressed Air Best Practices - March 2009 - Demand-Side System Optimization (Page 26) Compressed Air Best Practices - March 2009 - Demand-Side System Optimization (Page 27) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 28) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 29) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 30) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 31) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 32) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 33) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 34) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 35) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 36) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 37) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 38) Compressed Air Best Practices - March 2009 - Seven Sustainability Projects for Industrial Energy Savings (Page 39) Compressed Air Best Practices - March 2009 - Personal Productivity (Page 40) Compressed Air Best Practices - March 2009 - Personal Productivity (Page 41) Compressed Air Best Practices - March 2009 - Personal Productivity (Page 42) Compressed Air Best Practices - March 2009 - Resources for Energy Engineers (Page 43) Compressed Air Best Practices - March 2009 - Resources for Energy Engineers (Page 44) Compressed Air Best Practices - March 2009 - Resources for Energy Engineers (Page 45) Compressed Air Best Practices - March 2009 - Wall Street Watch (Page 46) Compressed Air Best Practices - March 2009 - Wall Street Watch (Page 47) Compressed Air Best Practices - March 2009 - Wall Street Watch (Page 48) Compressed Air Best Practices - March 2009 - Advertiser Index (Page 49) Compressed Air Best Practices - March 2009 - Classifieds (Page 50) Compressed Air Best Practices - March 2009 - Classifieds (Page Cover3) Compressed Air Best Practices - March 2009 - Classifieds (Page Cover4)
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