Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization Calculator

✖Molar Latent Heat of Vapor refers to the amount of heat energy required to vaporize one mole of a substance at a constant temperature and pressure.ⓘ Molar Latent Heat of Vapor [λ]			+10% -10%
✖Molar Enthalpy of Feed at Boiling Point refers to the enthalpy content per mole of a substance in a feed stream when the substance is at its boiling point.ⓘ Molar Enthalpy of Feed at Boiling Point [H_fs]			+10% -10%
✖Molar Enthalpy of Feed refers to the enthalpy content per mole of a substance in a feed stream when the substance is at a particular temperature.ⓘ Molar Enthalpy of Feed [H_f]			+10% -10%

✖Feed Quality refers to the composition, properties, and condition of the feedstock entering the distillation column.ⓘ Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization [q]

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Formula

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Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization

Formula

`"q" = (("λ"+"H"_{"fs"}-"H"_{"f"}))/("λ")`

Example

`"1.345113"=(("390.785J/mol"+"456.321J/mol"-"321.456J/mol"))/("390.785J/mol")`

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Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization Solution

STEP 0: Pre-Calculation Summary

Formula Used

Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor)
q = ((λ+H_fs-H_f))/(λ)
This formula uses 4 Variables

Variables Used

Feed Quality - Feed Quality refers to the composition, properties, and condition of the feedstock entering the distillation column.
Molar Latent Heat of Vapor - (Measured in Joule per Mole) - Molar Latent Heat of Vapor refers to the amount of heat energy required to vaporize one mole of a substance at a constant temperature and pressure.
Molar Enthalpy of Feed at Boiling Point - (Measured in Joule per Mole) - Molar Enthalpy of Feed at Boiling Point refers to the enthalpy content per mole of a substance in a feed stream when the substance is at its boiling point.
Molar Enthalpy of Feed - (Measured in Joule per Mole) - Molar Enthalpy of Feed refers to the enthalpy content per mole of a substance in a feed stream when the substance is at a particular temperature.

STEP 1: Convert Input(s) to Base Unit

Molar Latent Heat of Vapor: 390.785 Joule per Mole --> 390.785 Joule per Mole No Conversion Required
Molar Enthalpy of Feed at Boiling Point: 456.321 Joule per Mole --> 456.321 Joule per Mole No Conversion Required
Molar Enthalpy of Feed: 321.456 Joule per Mole --> 321.456 Joule per Mole No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q = ((λ+H_fs-H_f))/(λ) --> ((390.785+456.321-321.456))/(390.785)

Evaluating ... ...

q = 1.34511304169812

STEP 3: Convert Result to Output's Unit

1.34511304169812 --> No Conversion Required

FINAL ANSWER

1.34511304169812 ≈ 1.345113 <-- Feed Quality

(Calculation completed in 00.004 seconds)

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Created by Rishi Vadodaria

Malviya National Institute Of Technology (MNIT JAIPUR ), JAIPUR

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< 25 Distillation Tower Design Calculators

Relative Volatility of Two Components Based on Normal Boiling Point and Latent Heat of Vaporization

Go Relative Volatility = exp(0.25164*((1/Normal Boiling Point of Component 1)-(1/Normal Boiling Point of Component 2))*(Latent Heat of Vaporization of Component 1+Latent Heat of Vaporization of Component 2))

Maximum Allowable Vapor Velocity given Plate Spacing and Fluid Densities

Go Maximum Allowable Vapor Velocity = (-0.171*(Plate Spacing)^2+0.27*Plate Spacing-0.047)*((Liquid Density-Vapor Density in Distillation)/Vapor Density in Distillation)^0.5

Column Diameter given Maximum Vapor Rate and Maximum Vapor Velocity

Go Column Diameter = sqrt((4*Vapor Mass Flowrate)/(pi*Vapor Density in Distillation*Maximum Allowable Vapor Velocity))

Tower Cross Sectional Area given Gas Volumetric Flow and Flooding Velocity

Go Tower Cross Sectional Area = Volumetric Gas Flow/((Fractional Approach to Flooding Velocity*Flooding Velocity)*(1-Fractional Downcomer Area))

Minimum External Reflux given Compositions

Go External Reflux Ratio = (Distillate Composition-Equilibrium Vapor Composition)/(Equilibrium Vapor Composition-Equilibrium Liquid Composition)

Maximum Allowable Mass Velocity using Bubble Cap Trays

Go Maximum Allowable Mass Velocity = Entrainment Factor*(Vapor Density in Distillation*(Liquid Density-Vapor Density in Distillation)^(1/2))

Minimum Internal Reflux given Compositions

Go Internal Reflux Ratio = (Distillate Composition-Equilibrium Vapor Composition)/(Distillate Composition-Equilibrium Liquid Composition)

Dry Plate Pressure Drop in Distillation Column Design

Go Dry Plate Head Loss = 51*((Vapor Velocity Based on Hole Area/Orifice Coefficient)^2)*(Vapor Density in Distillation/Liquid Density)

Flooding Velocity in Distillation Column Design

Go Flooding Velocity = Capacity Factor*((Liquid Density-Vapor Density in Distillation)/Vapor Density in Distillation)^0.5

Weep Point Velocity in Distillation Column Design

Go Weep Point Vapor Velocity Based on Hole Area = (Weep Point Correlation Constant-0.90*(25.4-Hole Diameter))/((Vapor Density in Distillation)^0.5)

Liquid Vapor Flow Factor in Distillation Column Design

Go Flow Factor = (Liquid Mass Flowrate/Vapor Mass Flowrate)*((Vapor Density in Distillation/Liquid Density)^0.5)

Downcomer Residence Time in Distillation Column

Go Residence Time = (Downcomer Area*Clear Liquid Backup*Liquid Density)/Liquid Mass Flowrate

Internal Reflux Ratio Based on Liquid and Distillate Flowrates

Go Internal Reflux Ratio = Liquid Reflux Flowrate/(Liquid Reflux Flowrate+Distillate Flowrate)

Column Diameter Based on Vapor Flowrate and Mass Velocity of Vapor

Go Column Diameter = ((4*Vapor Mass Flowrate)/(pi*Maximum Allowable Mass Velocity))^(1/2)

Head Loss in Downcomer of Tray Tower

Go Downcomer Headloss = 166*((Liquid Mass Flowrate/(Liquid Density*Downcomer Area)))^2

Height of Liquid Crest over Weir

Go Weir Crest = (750/1000)*((Liquid Mass Flowrate/(Weir Length*Liquid Density))^(2/3))

Active Area given Gas Volumetric Flow and Flow Velocity

Go Active Area = Volumetric Gas Flow/(Fractional Downcomer Area*Flooding Velocity)

Fractional Downcomer Area given Total Cross Sectional Area

Go Fractional Downcomer Area = 2*(Downcomer Area/Tower Cross Sectional Area)

Fractional Active Area given Downcomer Area and Total Column Area

Go Fractional Active Area = 1-2*(Downcomer Area/Tower Cross Sectional Area)

Internal Reflux Ratio Given External Reflux Ratio

Go Internal Reflux Ratio = External Reflux Ratio/(External Reflux Ratio+1)

Tower Cross Sectional Area given Fractional Active Area

Go Tower Cross Sectional Area = Active Area/(1-Fractional Downcomer Area)

Tower Cross Sectional Area given Active Area

Go Tower Cross Sectional Area = Active Area/(1-Fractional Downcomer Area)

Clearance Area under Downcomer given Weir Length and Apron Height

Go Clearance Area Under Downcomer = Apron Height*Weir Length

Fractional Active Area given Fractional Downcomer Area

Go Fractional Active Area = 1-Fractional Downcomer Area

Residual Head Loss in Pressure in Distillation Column

Go Residual Head Loss = (12.5*10^3)/Liquid Density

Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization Formula

Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor)
q = ((λ+H_fs-H_f))/(λ)

What is the Significance of Quality of Feed?

The quality of the feed in distillation is of significant importance as it directly influences the efficiency, effectiveness, and overall performance of the distillation process.
The feed quality plays a crucial role in determining the separation efficiency of the distillation process. The composition of the feed mixture, including the types and concentrations of components, affects how well the components can be separated based on their different boiling points.
The feed quality is a key factor in determining the capacity of the distillation column and the throughput it can handle. Properly characterizing the feed helps in designing and operating columns to meet the desired production rates.

How to Calculate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization?

Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization calculator uses Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor) to calculate the Feed Quality, The Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization formula is defined as the characteristics and composition of the liquid mixture that is fed into the distillation column. Feed Quality is denoted by q symbol.

How to calculate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization using this online calculator? To use this online calculator for Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization, enter Molar Latent Heat of Vapor (λ), Molar Enthalpy of Feed at Boiling Point (H_fs) & Molar Enthalpy of Feed (H_f) and hit the calculate button. Here is how the Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization calculation can be explained with given input values -> 1.345113 = ((390.785+456.321-321.456))/(390.785).

FAQ

What is Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization?

The Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization formula is defined as the characteristics and composition of the liquid mixture that is fed into the distillation column and is represented as q = ((λ+H_fs-H_f))/(λ) or Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor). Molar Latent Heat of Vapor refers to the amount of heat energy required to vaporize one mole of a substance at a constant temperature and pressure, Molar Enthalpy of Feed at Boiling Point refers to the enthalpy content per mole of a substance in a feed stream when the substance is at its boiling point & Molar Enthalpy of Feed refers to the enthalpy content per mole of a substance in a feed stream when the substance is at a particular temperature.

How to calculate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization?

The Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization formula is defined as the characteristics and composition of the liquid mixture that is fed into the distillation column is calculated using Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor). To calculate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization, you need Molar Latent Heat of Vapor (λ), Molar Enthalpy of Feed at Boiling Point (H_fs) & Molar Enthalpy of Feed (H_f). With our tool, you need to enter the respective value for Molar Latent Heat of Vapor, Molar Enthalpy of Feed at Boiling Point & Molar Enthalpy of Feed and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Feed Quality?

In this formula, Feed Quality uses Molar Latent Heat of Vapor, Molar Enthalpy of Feed at Boiling Point & Molar Enthalpy of Feed. We can use 1 other way(s) to calculate the same, which is/are as follows -

Feed Quality = (Liquid Flowrate in Stripping Section-Liquid Flowrate in Rectifying Section)/Feed Flowrate

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