Compression Tank and Expansion Tank Selection Examples – Part 10

Norm Hall Expansion & Compression Tanks, Monday Morning Minutes, Tanks

Today, let’s look at a couple of selections and how the tank sizes and costs may vary based on location and type of tank selected. Our examples are shown in figures A & B. In each case we will use a system volume of 1500 gallons of water with a supply temperature of 200°F and 20°F ΔT. The system is 60 feet high and in each case the maximum pressure is 50 PSIG.
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Differences in Compression Tank and Expansion Tank Formula – Part 9

Norm Hall Expansion & Compression Tanks, Monday Morning Minutes, Tanks

Now we understand the difference between expansion and compression tanks as described in the R. L. Deppmann Monday Morning Minutes of 1-9-12 and 1-16-12. What happens to the formula results when comparing these two types of tanks? In part 1 of this series, we introduced the formula for tank sizing. The denominator of the equation was: (Pa /Pf) – (Pa /Po)
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