Applied Flow Technology Article Featured in Chemical Processing


Numerical optimization methods offer a powerful new technology for pump users when combined with pumping system analysis software. Whether the design goal is to reduce First Costs or Life Cycle Costs, this technology promises to significantly reduce pumping system costs and energy usage.

Optimization methods work by automatically selecting pipe and pump sizes to minimize cost. Design engineers define the constraints for the system, such as flowrate, NPSH margin, or fluid velocity. The optimization software then finds the combination of pipe and pump sizes to minimize the cost while satisfying the constraints.

A new design concept is introduced called the Optimal Pumping System Operating Point (OPSOP). In simple terms, the OPSOP uses cost data to identify the optimum tradeoff in pipe, pump and (optionally) energy costs for a system that may have one or more duty points. Using this information, a new and improved method of pump sizing is described.

A cost comparison of a system designed using traditional methods and as optimized for initial cost and life cycle cost is shown.


Cutting Cost in Pump and Pipe Sizing, by Trey Walters, P.E., Chemical Processing, June 2002

Trey Walters
President and Director of Software Development
Applied Flow Technology Corporation


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