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One Engineer’s Opinion: New Rooftop Design Could Make It Comparable to WSHP for Schools

By Bruce Longino In Georgia, Water Source Heat Pumps (WSHP) dominate school system designs. There are many reasons for this. Some of the many positives are: Bruce Longino, PE, LEED AP WSHP per classroom so if a failure occurs only one classroom is affected. WSHPs are very efficient (typical EER of around 14). WSHPs mounted in the hall results in a quiet classroom. With a WSHP system, heat from the interior can heat the perimeter. Read More

One Engineer’s Opinion: Please Don’t Drink the Kool-Aid

By Bruce Longino Don’t “drink the Kool-Aid” phrase came from a great tragedy that occurred November 18, 1978 Jonestown, Guyana. Jim Jones had a cult following of people. His followers were convinced to drink a Kool-Aid like drink laced with cyanide. That day 909 men, women and children perished in a mass suicide. Bruce Longino, PE, LEED AP After that horrible day, the expression “drink the Kool-Aid” is used to describe the behavior of believing… Read More

One Engineer’s Opinion: Money is Not Everything

By Bruce Longino I have written in the past about the benefits of bi-polar ionization units installed in our HVAC systems. Bi-polar means there are positive and negative ions. Ions are atoms or molecules that have one too many electrons [negative] or one too few electrons [positive]. Specifically in the application I am discussing, the water molecule (H2O) is split into a positive hydrogen atom +H and a negative hydroxide molecule –OH (H2O → +H… Read More