is sub-cooled liquid. The feed-line or q-line equation, which is the locus of the intersection of the enriching and stripping operating-line equations, can be derived as follow: yn+1 V = xnL + xDD (4.4-16) ym+1 V = x m L− xBB (4.4-17) At the intersection of the two operating lines y = y

If the feed is a vapor— liquid mixture, q is a fraction. Values of q greater than 1 indicate subcooled liquid feed. Values of q less than 0 indicate superheated vapor feed. Now let us look at the intersection points (x„ y,) of the stripping and rectifying operating lines. Use of equations (2.28) and (2.30) gives:

of the column, that is in rectifying section we have one liquid flow rate one the sub cooled liquid, this is q line for the saturated liquid this is for 

Where q is the mole fraction of liquid in the feed. For a sub-cooled liquid the slope of the line is between 45° and vertical.

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 

For example, when a subcooled liquid with mole fraction of A=0.4 (point A) is about the condition of the feed mixture, then we can construct the q-line 

a) Subcooled liquid Vapor to vapor, liquid to liquid. (d) Dew point vapor However, if the feed condition is fixed, q-line is also fixed and then we.

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,

Apr 15,  · The term Subcool refers to any temperature that is below the saturation condensing point of the refrigerant. Let’s say I have a saturation temperature of eighty degrees and the line temperature is at seventy-seven degrees. We now know that we have a three degree Subcool. The efficiency of your system depends on how much liquid refrigerant is

How many degrees is the liquid subcooled in the condenser? Therefore, the liquid must be subcooled to at least 97 degrees to prevent liquid line flash gas. This means the system would need at least 8 degrees (105 degrees - 97 degrees) of condenser subcooling to prevent liquid line flashing before getting the metering device.

subcooled liquid Position B: q = 1.0 saturatedliquidsaturated liquid Position C: 0 < q <: 1 mixture of saturated vapor and liquid PositionD:Position D: q = 0 saturated vapor Position E: operating line after crossing the q-line, estimating the last stage if necessary.

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

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" of feed equation is positive.

For sub-cooled liquid, q > 1 and the slope of the feed line is positive but less than infinity. For super-heated vapor, q < 0 and the slope of the feed line is 

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

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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

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

Subcooled liquid refers to that phase of a substance where it exists in liquid form at a temperature below its boiling point at the system pressure. The saturated liquid is a liquid that is about to vaporize, which means any decrease in pressure without changing its temperature causes it to boil.

When feed is partially vaporized: Other than saturated liquid (q = 1) and saturated vapor (q = 0) Slope of 'q - line' = ∝ (feed is at its bubble point).

Oct 03,  · Adding the material balance (Q-line) to the y-x diagram

Subcooling. The term subcooling (also called undercooling) refers to a liquid existing at a temperature below its normal boiling point. For example, water boils at 373 K; at room temperature (293 K) the water is termed "subcooled". A subcooled liquid is the convenient state in which, say, refrigerants may undergo the remaining stages of a

q > 1.0 subcooled liquid Position B: q = 1.0 saturatedliquidsaturated liquid Position C: 0 < q <: 1 mixture of saturated vapor and liquid PositionD:Position D: q = 0 saturated vapor Position E: q <

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Equation 7 is the equation of the operating line for the stripping section. The feed type is characterized by using a factor q, defined as the number of moles of liquid flow in the stripping

The term subcooling refers to a liquid existing at a temperature below its normal boiling point. For example, water normally boils at 100°C (at atmospheric pressure); at room temperature 20°C the water is termed "subcooled". Analogically the subcooling is defined also in nuclear engineering but for another purpose.

A quality of 0 corresponds to a vapor feed ( ) at its dew point and a quality of 1 corresponds to a liquid feed ( ) at its bubble point; the 

Mar 30,  · Organized by textbook: https://learncheme.com/Shows how to use mass balances to draw a q-line on a y-x phase diagram for a n-hexane/n-octane mixture. The q-l

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If the feed is a mixture if liquid and vapor, "q" is the fraction that is liquid, i.e. q = 1-y, where y is molar fraction of vapor phase in the