HVAC · Practice-Exam-1 · Problem 61PDFSolution in PDF ↓
HVAC · Practice-Exam-1 · Problem 61
Problem & Solution
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Problem: 1200 GPM of water flows through a 50-foot length of pipe with an 8-inch inside diameter and a friction factor of 0.02.
Approach: So for this one we can use the Darcy equation.
Key step: So overall our pro-chairs to start with the Darcy equation, HF equals FLV squared over 2DG and the friction factor was given 0.02.
Watch out: For larger pipes 8-10-12 inches it tends not to make too much of a difference in terms of impacting the answer choice for smaller pipes, the distincti...
Result: So now we're ready to substitute into the Darcy equation HF equal 0.02 for the friction factor 50 feet for the length 7.66 feet per second squared and...
✅ Answer: B
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