HVAC · Practice-Exam-1 · Problem 69PDFSolution in PDF ↓
HVAC · Practice-Exam-1 · Problem 69
Problem & Solution
Video Synthesis
Problem: 10,000 CFM of air at 90 degrees dry bulb 54 degrees wet bulb enters in a evaporative cooler using a 50 degree water spray to produce 60 degree leaving...
Key step: We've got some kind of a spray coming down and that water temperature is 50 degrees.
Watch out: But we don't expect it to be quite that high because we're only driving it to 60 degrees.
Result: And that equals 0.83, which is approximately 83% answer choice D.
✅ Answer: D
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