Description
Return a supplied vapor-quality mixture enthalpy.
A process stream can be described on mass, mole, phase or solvent bases, which are not interchangeable. Lever rules, partition factors and operating-line terms assume compatible composition definitions and an appropriate physical model; a local balance does not determine equilibrium properties or a complete separation design.
Return a supplied vapor-quality mixture enthalpy.
When to use this tool
Use Vapor Quality Enthalpy Base Flag when checking the stated stream composition, phase or separation-model term.
How to use the tool and how it works
- Enter quality, liquidEnthalpy, vaporEnthalpy, referenceOffset, includeOffset. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read mixtureEnthalpy. Use the output convention below.
Return a supplied vapor-quality mixture enthalpy. Require quality in [0,1]; mixtureEnthalpy = liquidEnthalpy+quality*(vaporEnthalpy-liquidEnthalpy), adding referenceOffset only when includeOffset.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| quality | Supplied vapor mass fraction in [0,1], distinct from vapor composition or distillation feed quality q. | Required. Finite number; minimum 0; maximum 1. |
| liquidEnthalpy | Liquid Enthalpy | Required. Finite number. |
| vaporEnthalpy | Vapor Enthalpy | Required. Finite number. |
| referenceOffset | Reference Offset | Required. Finite number. |
| includeOffset | Include Offset | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| mixtureEnthalpy | Mixture Enthalpy | Required. Finite number. |
{
"input": {
"quality": 0.25,
"liquidEnthalpy": 100,
"vaporEnthalpy": 500,
"referenceOffset": 20,
"includeOffset": true
},
"output": {
"mixtureEnthalpy": 220
}
}Limitations and assumptions
- Quality and enthalpies must use a compatible mass basis and state; phase equilibrium and reference consistency are not verified.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified equilibrium and material-property data on consistent bases and solve the complete process model for actual separation or equipment decisions.
References
Similar or alternative tools
- Flash Vapor Liquid One Component Balance
Return flash stream flows and one component's inferred vapor composition.
- Distillation Feed Quality Line Slope
Return the distillation feed-quality line slope and intercept.