Problem 3.2 - Elevation (m) p/p o p (kPa) T sat ( C) 1.000...

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Problem 3.2 [Difficulty: 2] Given: Pure water on a standard day Find: Boiling temperature at (a) 1000 m and (b) 2000 m, and compare with sea level value. Solution: We can determine the atmospheric pressure at the given altitudes from table A.3, Appendix A The data are Elevation (m) p/p o p (kPa) 0 1.000 101.3 1000 0.887 89.9 2000 0.785 79.5 We can also consult steam tables for the variation of saturation temperature with pressure: p (kPa) T sat C) 70 90.0 80 93.5 90 96.7 101.3 100.0 We can interpolate the data from the steam tables to correlate saturation temperature with altitude:
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Unformatted text preview: Elevation (m) p/p o p (kPa) T sat ( C) 1.000 101.3 100.0 1000 0.887 89.9 96.7 2000 0.785 79.5 93.3 The data are plotted here. They show that the saturation temperature drops approximately 3.4 C/1000 m. Variation of Saturation Temperature with Pressure 88 90 92 94 96 98 100 70 75 80 85 90 95 100 105 Absolute Pressure (kPa) Saturation Temperature (C) 2000 m 1000 m Sea Level...
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This note was uploaded on 10/19/2011 for the course EGN 3353C taught by Professor Lear during the Fall '07 term at University of Florida.

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