Understanding Primary Secondary Pumping Part 4: “What happens when...?”

By Chris Edmondson

Now that we know what happens when we vary flows and mix temperatures in a primary secondary pumping system, let’s explore these theories in some more realistic scenarios. 

As discussed in a previous blogs, when it comes to primary secondary systems, one of three flow patterns is always in occurrence: 

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Understanding Primary Secondary Pumping Part 3: Avoiding Low Delta T Syndrome

By Chris Edmondson

Low Delta T Syndrome.  The terminology alone strikes fear in the hearts of anyone involved in chiller plant design or operation.  We know Low Delta T Syndrome is bad.  We know it wastes energy.  The very topic has given rise to countless technical articles and white papers that most of us haven’t the time or patience read.  But take heart because believe it or not, if you’ve read and understand Part 1 and Part 2 of this Series, you already have the building blocks to understand Low Delta T Syndrome.  You just don’t know it yet.

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