Determin Enthalpy deviation. air is at 35°C and 10% relative about -0.52 KJ/Kg. humidity has an enthalpy deviation of How was -0.52 KJ/Kg DA determined? If linear interpolation was used, please demonstrate, Use the psychrometric chart.
Chemical Engineering
Use the psychrometric chart.
The remaining curves on the psychrometric chart are almost vertical and convex to the left,
with labeled values (on Figure 8.4-1) of 0.05, 0.1, 0.2, and so on. (The units of these
numbers arekJ/kg DA). Thesecurves are usedto determine theenthalpyof humid air that is not
saturated. The procedure is as follows: (a) locate the point on the chart corresponding to air at its
specified condition; (b) interpolate to estimate the enthalpy deviation at this point; (c) follow
the constant wet-bulb temperature line to the enthalpy scale above the saturation curve, read the
value on that scale, and add the enthalpy deviation to it.
Also, you will see the exercise on the piece of paper.
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