tips for highly effective energy management
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7 Habits of Highly Effective Energy Managers
Rick MarshDirector, Industrial EE Network
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Engineers Design for “Just in Case” not Energy Efficiency
• Fans & Pumps are usually oversized to consider worse case scenarios.
• Furnaces designed for peak product flow but.
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Air is FREE!(Compressed Air is Very Expensive)
• Compared to electric motors, the work that is conducted by compressed air is 7 times more expensive.
• Poor management of air supply can yield inefficiencies for costs and also in meeting demand events.
• Inappropriate uses and leaks are BIG opportunities
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Motel 6 Got it Wrong –
Don’t Leave the Lights On
• Changing bulbs is a good first step• All light is not created equal • Sensors and controls
– Occupancy sensors – Daylighting– Timers
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Reality is Somewhere Between our Expectations & Total Chaos
• Few industrial operations are truly 24/7
• Compressor sequencing & controls can adversely affect energy efficiency
VS
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Low Hanging Fruit Always
Seems to Grow Back
• Air & steam leaks• HVAC efficiency losses• results of poor maintenance• equipment degradation
= need for a continual management process.
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Production Needs vs. EE (Can’t We Just All Get Along!)
• Perceived needs
• Refusing to change anything that may cause a production issue often conflicts with energy reduction
• Energy Management
= Opportunity
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Metering
You Can’t Reduce What You Don’t Measure, and You Can’t Measure What You Don’t
Meter
• Sub-metering helps to align energy consumption with significant energy uses allowing for concentration of effort.
• Measuring energy performance should be calculated as a basis of production (energy intensity) without consideration for rate changes – MMBtu/unit production
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Material Developed By:
Dr. Ken Currie
Director, Center for Manufacturing Research
Associate Director, Industrial Assessment Center
Tennessee Tech University
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