Parallel Pumping with Optimized Impeller Pumps Part 2: Heat Transfer at Reduced Flow Rates
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Singular pump operation in a 2-pump parallel system occurs in one of two circumstances….
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Parallel Pumping with Optimized Impeller Pumps Part 1: Essential Fundamentals
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Our last series taught us that pumps with untrimmed impellers and variable frequency drives (i.e., optimized impeller pumps) can often exceed design head and flows without penalty. Now, we're really going to blow your mind. Did you know…
Read MoreParallel Pumping in Condenser Applications: Part 5 of 5
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Over the last few weeks the we’ve looked at pumping issues with multiple condensers and pumps. We have received questions about the topic, including these two:
Why do I need cooling tower outlet On-Off valves if I have an equalizing line?
Why do we see outlet On-Off valves on almost all jobs in North Carolina and only half the jobs in Michigan and Northern Ohio?
Read MoreParallel Pumping in Condenser Applications: Part 4 of 5
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Over the last few weeks we've looked at pumping issues with parallel equal sized condensers and pumps. This week we will look at the parallel condenser systems where the condensers are different types or sizes.
Read MoreParallel Pumping in Condenser Applications: Part 3 of 5
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Chilled water condensers are normally operated as constant flow devices and the pumps serving them are constant speed. Why would you ever use a variable speed drive for a pump in this application? This week we show you a couple of reasons...
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