Material Flow Section - Energy
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Material Flow (Qo) | Qxxxx Tab Include Properties | Species Flow | Optional Tabs | ||||||||
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Basic Information | Energy ValuesAtUserTandP | Density Correction Solubility Saturation | Acidity Charge Transport | HeatsOfCombustion Heating Values | Solution Impurity H2O Properties | Water Quality | Sp Tab EC Tab | DLockup LockUp | DTrack Track | DSz Sz MSz | DSSA SSA |
Related Links: Common Content Section
Introduction
These properties are related to the energy contained in the stream, e.g. specific heat, enthalpy, etc. These will only be shown if the user has chosen to display the Energy (Thermodynamic) Properties on the Plant Model - Views tab page or from the Include Properties dropdown list on the first page of the material flow section.
Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
EnergyThese properties will only be shown if the user has chosen to display the Energy (Thermodynamic) Properties on the Plant Model - Views tab page or from the Include Properties dropdown list on the first page of the material Flow section. | ||
Specific Heat | ||
Cp@0 | Calc | Cp of the total mixture in the stream @ 0 °C. |
Cp / Cp@T | Calc | Cp of the total mixture in the stream @ temperature. |
SmsCp@T | Calc | Solids Cp at the stream temperature |
LmsCp@T | Calc | Liquid Cp at the stream temperature |
VmsCp@T | Calc | Vapour Cp at the stream temperature |
SLmsCp@T | Calc | Slurry Cp at the stream temperature |
CpCv | Calc | The ratio of specific heat at constant pressure to specific heat at constant volume at the stream temperature. |
Enthalpy - Sensible | ||
Hs@T | Calc | The change in enthalpy, dH, (excluding phase change) from 0°C to stream temperature for the total mixture. |
SmsHs@T | Calc | The change in enthalpy, dH, (excluding phase change) from 0°C to stream temperature for the solids. |
LmsHs@T | Calc | The change in enthalpy, dH, (excluding phase change) from 0°C to stream temperature for the Liquids. |
VmsHs@T | Calc | The change in enthalpy, dH, (excluding phase change) from 0°C to stream temperature for the vapours, or gases. |
SLmsHs@T | Calc | The change in enthalpy, dH, (excluding phase change) from 0°C to stream temperature for the combined solids and liquids. |
totHs | Calc | The total Hs at stream temperature (Hs@T x mass flowrate). |
Enthalpy - including Phase Change (Please see What is the difference between Hs and Hz? | ||
Hz@T | Calc | The change in enthalpy, dH,(including phase change) from 0°C to stream temperature for the total mixture. |
totHz | Calc | The total Hz at stream temperature (Hz@T x mass flowrate). |
Total Enthalpy (previously called Enthalpy of Formation) Total Enthalpy = Heat of Formation at 25 + [math]\int\limits_{25}^{T}Cp dT\,[/math] | ||
Hf@0 | Calc | Total Enthalpy for the mixture at 0°C and 101.325 kPa, per mass. |
Hf@T | Calc | Total Enthalpy for the mixture at the stream temperature and pressure, per mass. |
totHf@0 | Calc | Total Enthalpy @ 0°C and 101.325 kPa x mass flowrate |
totHf@T | Calc | Total Enthalpy @ stream temperature and pressure x mass flowrate |
Entropy and Free Energy | ||
S@0 | Calc | Entropy for the total mixture at 0°C and 101.325 kPa. |
S@T | Calc | Entropy for the total mixture at the stream temperature and pressure. |
G@0 | Calc | Gibbs Free Energy (mass basis) for the total mixture at 0°C and 101.325 kPa. This is only visible in Build 138 and later. |
G@T | Calc | Gibbs Free Energy (mass basis) for the total mixture at the stream temperature and pressure. This is only visible in Build 138 and later. |
mlG@T | Calc | Gibbs Free Energy (mole basis) for the total mixture at the stream temperature and pressure. This is only visible in Build 138 and later. |
Values at User Defined T and PIf the ValuesAtUserTandP option is selected in the Plant Model - Species tab page or from the Include Properties dropdown list on the first page of the material Flow section, then the following fields will also be shown: | ||
UsrDefT | Input | User defined Temperature |
UsrDefP | Input | User defined pressure. This will be the saturation pressure at the user defined temperature if * is entered for this field. |
VolFlow@U / Qv@U | Calc | Volume flow of the total mixture at user defined temperature and pressure. |
LiquidVolFlow@U / LQv@U | Calc | Volume flow of the liquid phase at user defined temperature and pressure. |
Density@U / Rho@U | Calc | Density of the total mixture at user defined temperature and pressure. |
LiquidDensity@U / LRho@U | Calc | Density of the liquid phase at user defined temperature and pressure. |
VapourDensity@U / VRho@U | Calc | Density of the vapour phase at user defined temperature and pressure. |
SolidConc@U | Calc | The solids concentration at user defined temperature and pressure. |
Cp@U | Calc | Heat capacity of the total mixture at user defined temperature and pressure. |
totHs@U | Calc | Enthalpy of the total mixture at user defined temperature and pressure. |
totHz@U | Calc | Enthalpy including phase change of the total mixture at user defined temperature and pressure. |
totHf@U | Calc | Total Enthalpy including heat of formation of the total mixture at user defined temperature and pressure. |