HVAC · Fluids · Problem 5
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HVAC · Fluids · Problem 5
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Problem: Fluids number 5, a pump designed to operate at a 100gpm and 50 feet of head is determined to be oversized.
Given: 100gpm and 50 feet of head is determined to be oversized; 100gpm; 50 feet
Approach: The pump's impeller diameter is decreased by 20%.
Calc: We have an initial flow rate Q1 which is known 100gpm.
Calc: We'll call that delta H1 and these are both known.
Result: And that works out to 32 feet, which is answer choice B.
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