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VARIABLE SPEED PUMPING - Energy

VARIABLE SPEED PUMPING . A GUIDE TO. SUCCESSFUL APPLICATIONS. EXECUTIVE SUMMARY. VARIABLE SPEED DRIVES. A WAY TO LOWER LIFE CYCLE COSTS. Department of Energy Energy Efficiency and Renewable Energy uropump Industrial Technologies Program Bringing you a prosperous future where Energy is clean, abundant, reliable, and affordable Table of Contents Introduction .. 1. PUMPING Systems .. 1. Selection Process New Systems .. 8. Selection Process Retrofitting to Existing Equipment .. 10. Benefits of VSDs .. 10. Potential Drawbacks of VSDs .. 10. Estimating PUMPING Energy Costs .. 12. Capital Cost Savings .. 13. Financial Justification .. 13. Example: VARIABLE SPEED Drives Fitted on a Primary Feed Pump and Product Transfer Pump in a Refinery.

Proper selection of pumps, motors, and controls to meet the process requirements is essential to ensure that a pumping system operates effectively, reliably, and effi-ciently. All pumps are divided into the two major categories of positive displace-ment (PD) and rotodynamic. PD pumps can be classified into two main groups: rotary and reciprocating.

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