|Pumping System Optimization (Power Point Presentation in pdf format)
Pump and Piping Redesign An optimized design for a factory called for pumps equaling 95 horsepower. But after a fresh redesign using larger pipe and fewer bends, the pumps were reduced to 7 horsepower - a 92% reduction in energy use! More . . .
Two Online Articles from Drivesmag.com By, M R Branda - Cutler-Hammer
- Adjustable Frequency Drives and Saving Energy Part 1 The Basics, The Affinity Laws and Pump Applications More . . .
- Part 2 Fan Applications More . . .
MotorMaster An energy-efficient motor selection and management tool, MotorMaster+ 4.0 software from ITP features motor inventory management tools, maintenance log tracking, efficiency analysis, savings evaluation, energy accounting, and environmental reporting capabilities. More . . .
The Pumping System Assessment Tool from ITP helps industrial users assess the efficiency of pumping system operations. Register on-line. More . . .
Fan Handbook: Selection, Application, and Design by Frank P. Bleier List Price: $89.95. ISBN 0070059330
Reference on the design, selection, maintenance, and repair of fans used in a wide range of applications and industries. Coverage of airfoils. . .axial flow fans. . .centrifugal fans. . .mixed-flow fans. . .roof ventilators. . .cross-flow blowers. . .regenerative blowers. . .and more. Includes Codes, Standards, and specifications relating to the design or selection of specialized fans; Testing of fans according to AMCA; Physical laws affecting the performance of fans; Ventilation requirements for fan technology; Helpful symbols and conversions factors.
|Electric motor-driven systems consume 23 percent of all electricity sold in the United States, and account for 64 percent of industrial electrical energy consumption. According to the U.S. Dept. of Energy, industrial motor energy use could be reduced 11-18 percent (62-104 billion kWh per year) if industrial facilities took advantage of all available efficiency measures. These projected savings are valued at $3-5 billion per year and would decrease annual carbon emissions by 15-26 million metric tons.
Approximately 28 percent of the savings opportunity can be achieved through more efficient motors; the rest can be addressed through motor systems opportunities.
Two of the most important and common motor driven systems are centrifugal fan and pump systems. System performance optimization typically focuses on optimizing flows to meet end use requirements. Significant energy efficiency opportunities arise from the fact that power consumption of centrifugal fans and pumps varies as the cube of the speed while output varies linearly. Adjusting fan or pump speed as flow requirements change rather than throttling the flow can yield impressive reductions in energy consumption.
The Industrial Technologies Program (DOE EERE) has gathered together BestPractices resourcespublications, software tools, and training informationthat's specific to motor systems. Some can be read or downloaded, others can be ordered from the OIT Clearinghouse. Tip sheets, case studies, software, etc. More . . .