Posts Tagged ‘variable frequency drive’

Flow Control with VFD Pumps versus Control Valves

Posted in Energy, Final Control Element on Friday, April 1st, 2011. 10 comments so far
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A recent article explored the energy savings of variable frequency drive (VFD)-based centrifugal pumps versus control valves in flow control applications. The article, Eliminating the Control Valve sums its position in the subtitle, “Valves Are Energy Hogs; They Stick; They’re Prone to Mechanical Failure. So Why the Reluctance to Replace Them With VFDs?” The […]

Control Valve Impact on Process Variability

Posted in Final Control Element on Wednesday, April 28th, 2010. No comments yet
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The March/April edition of Intech magazine features an article by‘s Greg McMillan–Key design components of final control elements. The article is derived from Greg’s new book, Essentials of Modern Measurements and Final Elements in the Process Industry. Final control elements, such as control valves, are used to control the process by changing the flow. […]

What Have I Learned? – Read Greg McMillan’s Blog

Posted in Control Strategies, Education on Thursday, May 28th, 2009. No comments yet
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If you’re a process automation professional and you haven’t been following Greg McMillan on the blog and his “What Have I Learned?” series of posts, you’re not in the flow of great knowledge sharing. Here’s the current list of posts: What Have I Learned? – Sharing Knowledge What Have I Learned? – Einstein and […]