NPSH: Verskil tussen weergawes
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Lyn 48:
P<sub>1</sub> is die absolute [[druk]] van die tenk en is dus 20 + 81 = 101 kPa(a)
Die [[Water dampdruk|dampdruk van water]] (P<sub>eff</sub>) by die sisteemtemperatuur van 100 °C, is 101.325 kPa<ref>Kyk [http://www.engineeringtoolbox.com/water-vapor-saturation-pressure-d_599.html The Engineering Toolbox: Water Saturation Pressure].</ref>. (Dus gaan P<sub>1</sub> en P<sub>eff</sub> uit kanselleer.)
: <math>\Delta P_{EL} = \rho g h = \rho g (h_2 - h_1) = 958.4 \times 9.81 \times (0.5 - 5.5) = -47010 \ Pa \times \frac{1 \ kPa}{1000 \ Pa} = -47 \ kPa</math>
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