Plotting the q-line. (21.3) \begin{displaymath} F=L_F+V_F \end{displaymath}. (21.4) \begin{equation*} q=\frac{(\overline L -. For sub-cooled liquid, q > 1.

The q-line (depicted in blue in Figure 1) starts at the x = y line and intersects the starting point of the rectifying section operating line. The parameter q is the mole fraction of liquid in the feed,

subcooled liquid feed on the distillation column performance. All q-lines are parallel and meet the y = x line at the corresponding value of xF, 

DETAILS OF q-LINE : ; 0-1, -ve inclined between saturated liquid and saturated vapor line, Feed is a mixture of saturated vapor and saturated liquid ; >1, +ve 

The y-intercept of the q-line for a subcooled liquid feed is negative O zero positive ; Question: The y-intercept of the q-line for a subcooled liquid feed is negative O zero positive . This problem has been solved! See the answer See the answer See the answer done loading. Show transcribed image text

If feed is a subcooled liquid, q>1 (i.e., L' augmented by vapor condensation), "slope" of feed equation is positive; If feed is a superheated vapor, q<0 (i.e., L' decreased evaporation), "slope"

The classical pool boiling curve is a plot of heat flux, q″, in the y-axis versus excess temperature, ΔT = Tw - Tsat in the x-axis. As the value of the excess temperature increases, the curve

Subtract the actual liquid line temperature from the condensing temperature. The answer is the degrees of subcooling the system has. Systems that have no receiver, or any special devices to increase subcooling, should have about 10°F subcooled liquid refrigerant. Systems that use regular receivers will have little or no subcooling.

Jul 20,  · Here, we walkthrough solving a subcooled liquid problem. Given a liquid at a certain temperature and pressure, this is how you determine how far it is below

subcooled liquid. Position B: q = 1.0 saturated liquid saturated liquid. Position C: 0 < q <: 1 Saturated Vapor: Slope of the q line is zero.

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