Feed Q-Value in Distillation Column Calculator

✖The heat required to convert feed to saturated vapor is the enthalpy difference between the saturated vapor enthalpy of the feed and feed enthalpy at inlet.ⓘ Heat Required to Convert Feed to Saturated Vapor [H_v-f]			+10% -10%
✖The Molal Latent Heat of Vaporization of saturated liquid is the difference in enthalpy of saturated vapor and saturated liquid of the feed.ⓘ Molal Latent Heat of Vaporization of Saturated Liq [λ]			+10% -10%

✖The Q-value in Mass Transfer is defined as the moles of liquid flow in the stripping section that results from the introduction of each mole of feed.ⓘ Feed Q-Value in Distillation Column [q]

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Feed Q-Value in Distillation Column Solution

STEP 0: Pre-Calculation Summary

Formula Used

Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq
q = H_v-f/λ
This formula uses 3 Variables

Variables Used

Q-value in Mass Transfer - The Q-value in Mass Transfer is defined as the moles of liquid flow in the stripping section that results from the introduction of each mole of feed.
Heat Required to Convert Feed to Saturated Vapor - (Measured in Joule Per Mole) - The heat required to convert feed to saturated vapor is the enthalpy difference between the saturated vapor enthalpy of the feed and feed enthalpy at inlet.
Molal Latent Heat of Vaporization of Saturated Liq - (Measured in Joule Per Mole) - The Molal Latent Heat of Vaporization of saturated liquid is the difference in enthalpy of saturated vapor and saturated liquid of the feed.

STEP 1: Convert Input(s) to Base Unit

Heat Required to Convert Feed to Saturated Vapor: 1000 Joule Per Mole --> 1000 Joule Per Mole No Conversion Required
Molal Latent Heat of Vaporization of Saturated Liq: 1650 Joule Per Mole --> 1650 Joule Per Mole No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q = H_v-f/λ --> 1000/1650

Evaluating ... ...

q = 0.606060606060606

STEP 3: Convert Result to Output's Unit

0.606060606060606 --> No Conversion Required

FINAL ANSWER

0.606060606060606 ≈ 0.606061 <-- Q-value in Mass Transfer

(Calculation completed in 00.020 seconds)

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Feed Q-Value in Distillation Column

LaTeX Go Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq

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LaTeX Go External Reflux Ratio = External Reflux Flowrate to Distillation Column/Distillate Flowrate from Distillation Column

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Boil-Up Ratio

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Feed Q-Value in Distillation Column Formula

LaTeX Go

Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq
q = H_v-f/λ

What is Q-Value in Distillation?

Te q-value is defined as the moles of liquid flow in the stripping section that results from the introduction of each mole of feed.

The value of q can be controlled by adjusting the amount of preheat the feed stream is subjected to before entering the column.

For different feed conditions, q has the following numerical limits :

· cold feed (below bubble point) q > 1
· feed at bubble point (saturated liquid) q = 1
· feed partially vapour 0 < q < 1
· feed at dew point (saturated vapour) q = 0
· feed superheated vapour q < 0

If the feed is a mixture of liquid and vapour, then q is the fraction of the feed that is liquid. For example, if a feed is 25% liquid and 75% vapour, then q = 0.25.

How to Calculate Feed Q-Value in Distillation Column?

Feed Q-Value in Distillation Column calculator uses Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq to calculate the Q-value in Mass Transfer, The Feed Q-Value in Distillation Column formula is defined as the ratio of the heat required to convert feed to saturated vapour to the molal latent heat of vaporization of saturated liquid. Q-value in Mass Transfer is denoted by q symbol.

How to calculate Feed Q-Value in Distillation Column using this online calculator? To use this online calculator for Feed Q-Value in Distillation Column, enter Heat Required to Convert Feed to Saturated Vapor (H_v-f) & Molal Latent Heat of Vaporization of Saturated Liq (λ) and hit the calculate button. Here is how the Feed Q-Value in Distillation Column calculation can be explained with given input values -> 0.606061 = 1000/1650.

FAQ

What is Feed Q-Value in Distillation Column?

The Feed Q-Value in Distillation Column formula is defined as the ratio of the heat required to convert feed to saturated vapour to the molal latent heat of vaporization of saturated liquid and is represented as q = H_v-f/λ or Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq. The heat required to convert feed to saturated vapor is the enthalpy difference between the saturated vapor enthalpy of the feed and feed enthalpy at inlet & The Molal Latent Heat of Vaporization of saturated liquid is the difference in enthalpy of saturated vapor and saturated liquid of the feed.

How to calculate Feed Q-Value in Distillation Column?

The Feed Q-Value in Distillation Column formula is defined as the ratio of the heat required to convert feed to saturated vapour to the molal latent heat of vaporization of saturated liquid is calculated using Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq. To calculate Feed Q-Value in Distillation Column, you need Heat Required to Convert Feed to Saturated Vapor (H_v-f) & Molal Latent Heat of Vaporization of Saturated Liq (λ). With our tool, you need to enter the respective value for Heat Required to Convert Feed to Saturated Vapor & Molal Latent Heat of Vaporization of Saturated Liq and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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