Proper Pump Sizing

A pump may be incorrectly sized for current needs if it has a high bypass flow rate, or has a flow rate that varies more than 30% from its best efficiency point flow rate. Where peak loads can be reduced, pump size can also be reduced. However, the impacts of motor efficiency also need to be considered with choosing a smaller pump, as smaller motors typically have lower efficiencies at partial load conditions. In situation where the larger motor operates at a low efficiency, energy efficiency improvements will be more obvious. Prior to the replacement decision a thorough analysis of multiple factors – load dynamics and motor efficiencies at partial loads – will be necessary. Properly sizing the pump and the motor will also reduce the wear of the equipment, increase the life-time and reduce maintenance costs.

Development Status Products
Commercial

Proper Pump SizingCosts & Benefits

Parent Process: Cross Cutting Technology
Energy Savings Potential

Correcting pump oversizing can save 15% to 25% of electricity consumption for pumping on average for the U.S. Industry.

CO2 Emission Reduction Potential
Costs

Proper Pump Sizing Publications

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.

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