HVAC · Fluids · Problem 2
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HVAC · Fluids · Problem 2
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Problem: Fluids number 2, a pump delivers 200 GPM of water at 130 feet of total dynamic head operating from 7am to 7pm Monday through Friday.
Given: 200 GPM of water at 130 feet of total dynamic head operating from 7am to 7pm Monday through Friday; 200 GPM and the h...
Approach: So we need to figure out how much electricity this pump consumes.
Key formula: formula for water horsepower
Calc: And we've been given the flow rate 200 GPM and the head or pressure that the pump is able to develop 130 feet.
Calc: But of course there is some inefficiency because no pump is 100% efficient.
Result: And that number turns out to be $2,669 per year, which is close to choice A.
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