HVAC · Practice-Exam-2 · Problem 19PDFSolution in PDF ↓
HVAC · Practice-Exam-2 · Problem 19
Problem & Solution
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Problem: How much power is required to ice and tropically compress a hundred pounds per minute of air at atmospheric pressure and 80 degrees to a 150 psi.
Approach: It's going to be valid to use this equation T2 over T1 equals P2 over P1 raised to the K-1 over K.
Key step: How much power is required to ice and tropically compress a hundred pounds per minute of air at atmospheric pressure and 80 degrees to a 150 psi.
Watch out: And since this is a difference, we don't have to worry about using absolute temperature units.
Result: 12,207 B2 per minute turns out that one horsepower equals 42.4 B2 per minute.
✅ Answer: C
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