HVAC · Practice-Exam-1 · Problem 76PDFSolution in PDF ↓
HVAC · Practice-Exam-1 · Problem 76
Problem & Solution
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Problem: Superheated steam at 400 PSIA and 700 degrees is expanded in an 85% efficient turbine Tamispheric pressure.
Key step: Superheated steam at 400 PSIA and 700 degrees is expanded in an 85% efficient turbine Tamispheric pressure.
Watch out: And then for state two all we know is the pressure is atmospheric pressure but we don't know anything else at this time and what we would like to know...
Result: We now say the efficiency is the difference in enthalpy actually realize let's call that delta H actual divided by the ideal delta H where to spell th...
✅ Answer: A
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