Compressed Air Best Practices - October 2008 - (Page 28) | 10/08 Focus Industry AUTOMOTIVE TRANSIT | AUDIT SAVINGS IN CANADA FOR MOTOR COACH INDUSTRIES p running the compressors in efficient load/unload mode, rather than in less efficient modulation mode coordinating operation of all four compressors for maximum efficiency installing a 2,400-cfm duplex cycling dryer to prevent moisture build-ups in the lines installing a high-efficiency, low-differential, coalescing air filter to eliminate oil and other contaminants in the lines installing air saver drains that automatically eliminate condensate without losing compressed air replacing aging hoses and other sources of air leaks, and introducing a regular system of leak testing p p p p p Seminar Inspires Action Following the audit, Manitoba Hydro sponsored a compressed air seminar by Scot Foss, worldclass expert in compressed air system efficiency. Inspired by ideas from the seminar, Motor Coach staff selected a proposal by a local mechanical contractor to perform a turnkey project that would act on the results of Hydro’s audit. Ron Marshall, the Manitoba Hydro Industrial Systems Officer who performed the audit at Motor Coach, reports that to date, the improvement projects have reaped the following savings: p kW CO2 O $50,000 in lower operating costs $13,000 in reduced maintenance $8,500 in lower gas heating costs through heat recovery “With this project, Motor Coach was able to get a double whammy — excellent power savings and much increased compressed air quality.” – Ron Marshall, Manitoba Hydro p p Motor Coach is also saving an estimated $20,000 a year in increased productivity from improved air quality and system pressure. Total annual electrical savings to date are an estimated 1,650.000 kWh. “Saving power through increased efficiency was on their management’s hit list,” says Ron Marshall. “With this project, Motor Coach was able to get a double whammy — excellent power savings and much increased compressed air quality. And they report their equipment runs a lot smoother,” he says. “Some say they can even hear the difference when they’re out in the plant!” For more information, please contact Ron Marshall, CET, CIM, Certified Energy Manager, Industrial Systems Officer, Business Engineering Services, Manitoba Hydro, tel: 204-474-3658, email: rcmarshall@hydro.mb.ca 28 www.airbestpractices.com http://www.airbestpractices.com
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