Material Content Section - Energy

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Material (Content)	Content Tab Include Properties						Species (Sp)	Optional Tabs
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

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Introduction

These properties are related to the energy contained in the surge unit, 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.

Data Sections

Tag (Long/Short)	Input / Calc	Description/Calculated Variables / Options
Energy These 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 Content section.
Specific Heat
Cp@0	Calc	Cp of the total mixture in the content @ 0 °C.
Cp / Cp@T	Calc	Cp of the total mixture in the content @ temperature.
SmsCp@T	Calc	Solids Cp at the content temperature
LmsCp@T	Calc	Liquid Cp at the content temperature
VmsCp@T	Calc	Vapour Cp at the content temperature
SLmsCp@T	Calc	Slurry Cp at the content temperature
CpCv	Calc	The ratio of specific heat at constant pressure to specific heat at constant volume at the content temperature.
Enthalpy - Sensible
Hs@T	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the total mixture.
SmsHs@T	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the solids.
LmsHs@T	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the Liquids.
VmsHs@T	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the vapours, or gases.
SLmsHs@T	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the combined solids and liquids.
totHs	Calc	The total Hs at content 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 content temperature for the total mixture.
totHz	Calc	The total Hz at content temperature (Hz@T x mass flowrate).
Total Enthalpy (previously heading was Enthalpy of Formation) Total Enthalpy = Heat of Formation at 25 + [math]\displaystyle{ \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 content temperature and pressure, per mass.
totHf@0	Calc	Total Enthalpy @ 0°C and 101.325 kPa x mass flowrate
totHf@T	Calc	Total Enthalpy @ content 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 content temperature and pressure.
G@0	Calc	Gibbs Free Energy (mass basis) for the total mixture at 0°C and 101.325 kPa.
G@T	Calc	Gibbs Free Energy (mass basis) for the total mixture at the content temperature and pressure.
mlG@T	Calc	Gibbs Free Energy (mole basis) for the total mixture at the content temperature and pressure.
Values at User Defined T and P If the ValuesAtUserTandP option is selected in the Plant Model - Views tab page or from the Include Properties dropdown list on the first page of the material Content 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.
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.