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Feed Quality refers to the composition, properties, and condition of the feedstock entering the distillation column. Check FAQs
q=(λ+Hfs-Hf)λ
q - Feed Quality?λ - Molar Latent Heat of Vapor?Hfs - Molar Enthalpy of Feed at Boiling Point?Hf - Molar Enthalpy of Feed?

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

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Here is how the Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization equation looks like with Values.

Here is how the Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization equation looks like with Units.

Here is how the Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization equation looks like.

1.3451Edit=(390.785Edit+456.321Edit-321.456Edit)390.785Edit
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HomeIcon Home » Category Engineering » Category Chemical Engineering » Category Process Equipment Design » fx 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 Solution

Follow our step by step solution on how to calculate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization?

FIRST Step Consider the formula
q=(λ+Hfs-Hf)λ
Next Step Substitute values of Variables
∴ q=(390.785J/mol+456.321J/mol-321.456J/mol)390.785J/mol
Next Step Prepare to Evaluate
∴ q=(390.785+456.321-321.456)390.785
Next Step Evaluate
∴q=1.34511304169812
LAST Step Rounding Answer
∴q=1.3451

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

Variables
Feed Quality
Feed Quality refers to the composition, properties, and condition of the feedstock entering the distillation column.
Symbol: q
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Formulas to find Feed QualityOpen Variable
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.
Symbol: λ
Measurement: Molar EnthalpyUnit: J/mol
Note: Value should be greater than 0.
Formulas to find Molar Latent Heat of VaporOpen Variable
Molar Enthalpy of Feed at Boiling Point
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.
Symbol: Hfs
Measurement: Molar EnthalpyUnit: J/mol
Note: Value should be greater than 0.
Formulas to find Molar Enthalpy of Feed at Boiling PointOpen Variable
Molar Enthalpy of Feed
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.
Symbol: Hf
Measurement: Molar EnthalpyUnit: J/mol
Note: Value should be greater than 0.
Formulas to find Molar Enthalpy of FeedOpen Variable

Other Formulas to find Feed Quality

​Go Quality of Feed Based on Liquid Flowrates and Feed Flowrate
q=Lm-LnF

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​Go Active Area given Gas Volumetric Flow and Flow Velocity
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​Go Column Diameter Based on Vapor Flowrate and Mass Velocity of Vapor
Dc=(4⋅VWπ⋅Wmax)12
​Go Column Diameter given Maximum Vapor Rate and Maximum Vapor Velocity
Dc=4⋅VWπ⋅ρV⋅Uv

How to Evaluate 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 evaluator 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 evaluate 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 evaluate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization using this online evaluator? To use this online evaluator 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 (Hfs) & Molar Enthalpy of Feed (Hf) and hit the calculate button.

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

What is the formula to find Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization?
The formula of Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization is expressed as Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor). Here is an example- 1.345113 = ((390.785+456.321-321.456))/(390.785).
How to calculate Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization?
With Molar Latent Heat of Vapor (λ), Molar Enthalpy of Feed at Boiling Point (Hfs) & Molar Enthalpy of Feed (Hf) we can find Quality of Feed based on Enthalpy of Feed and Latent Heat of Vaporization using the formula - Feed Quality = ((Molar Latent Heat of Vapor+Molar Enthalpy of Feed at Boiling Point-Molar Enthalpy of Feed))/(Molar Latent Heat of Vapor).
What are the other ways to Calculate Feed Quality?
Here are the different ways to Calculate Feed Quality-
  • Feed Quality=(Liquid Flowrate in Stripping Section-Liquid Flowrate in Rectifying Section)/Feed FlowrateOpenImg
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