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ENGR5003 / Week 3
Lecture 8 examples - linear interpolation in the saturation tableTutorialCurrent specThird4 min

ENGR5003 Lecture 8 examples (slide 16)

Saturated water, pressure table extract:

p (bar)TsT_s (C)vgv_g (m3/kg)ufu_f (kJ/kg)ugu_g (kJ/kg)hfh_f (kJ/kg)hfgh_{fg} (kJ/kg)hgh_g (kJ/kg)
9175.40.2149742258174320312774
10179.90.1944762258476320152778
Formulas you may need
  • Linear interpolation: y−y1y2−y1=x−x1x2−x1\dfrac{y - y_1}{y_2 - y_1} = \dfrac{x - x_1}{x_2 - x_1} (learn this, Lecture 8-9)
  1. (a)
    Find the saturation temperature tst_s at a pressure of 9.8 bar.
  2. (b)
    Find hgh_g at 9.8 bar.