Kenneth P. Jaworski P.E.

Jaworski is a senior mechanical engineer with JDA Consulting Engineers in Baltimore. He has over 30 years of experience designing and commissioning boiler and chiller plants, refrigeration plants, HVAC, fire protection, process piping, and materials handling systems. He currently specializes in the planning, design, construction administration, and commissioning of complex mechanical and electrical systems for mission critical facilities. His extensive experience also includes facility assessments, economic and energy analyses, life cycle costs, and optimization studies for mechanical systems.

ARTICLES

Inappropriate Use of VSDs

By Kenneth P. Jaworski P.E. and Edward C. Koplin P.E., CEM
One Comment
Commissioning and testing has been a core component of the consulting and design work developed at JDA Consulting Engineers since 1990. Our firm’s experience suggests that VSD technology has become a panacea for solving the complex design issues that relate to centrifugal pump selection. As JDA’s team commissions large, complex mechanical plants, we find more systems where the VSD is practically abandoned in place. Rather than providing the precise control of flow and pressure or reducing energy consumption and demand, the VSDs appear to be “stuck” at a single speed.
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