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
[email protected]	Calc	Cp of the total mixture in the content @ 0 °C.
Cp / [email protected]	Calc	Cp of the total mixture in the content @ temperature.
[email protected]	Calc	Solids Cp at the content temperature
[email protected]	Calc	Liquid Cp at the content temperature
[email protected]	Calc	Vapour Cp at the content temperature
[email protected]	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
[email protected]	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the total mixture.
[email protected]	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the solids.
[email protected]	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the Liquids.
[email protected]	Calc	The change in enthalpy, dH, (excluding phase change) from 0°C to content temperature for the vapours, or gases.
[email protected]	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 ([email protected] x mass flowrate).
Enthalpy - including Phase Change (Please see What is the difference between Hs and Hz?
[email protected]	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 ([email protected] x mass flowrate).
Total Enthalpy (previously called Enthalpy of Formation) Total Enthalpy = Heat of Formation at 25 + [math]\displaystyle{ \int\limits_{25}^{T}Cp dT\, }[/math]
[email protected]	Calc	Total Enthalpy for the mixture at 0°C and 101.325 kPa, per mass.
[email protected]	Calc	Total Enthalpy for the mixture at the content temperature and pressure, per mass.
[email protected]	Calc	Total Enthalpy @ 0°C and 101.325 kPa x mass flowrate
[email protected]	Calc	Total Enthalpy @ content temperature and pressure x mass flowrate
Entropy and Free Energy
[email protected]	Calc	Entropy for the total mixture at 0°C and 101.325 kPa.
[email protected]	Calc	Entropy for the total mixture at the content temperature and pressure.
[email protected]	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.
[email protected]	Calc	Gibbs Free Energy (mass basis) for the total mixture at the content temperature and pressure. This is only visible in Build 138 and later.
[email protected]	Calc	Gibbs Free Energy (mole basis) for the total mixture at the content temperature and pressure. This is only visible in Build 138 and later.
Values at User Defined T and P If 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 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.
[email protected] / [email protected]	Calc	Density of the total mixture at user defined temperature and pressure.
[email protected] / [email protected]	Calc	Density of the liquid phase at user defined temperature and pressure.
[email protected] / [email protected]	Calc	Density of the vapour phase at user defined temperature and pressure.
[email protected]	Calc	The solids concentration at user defined temperature and pressure.
[email protected]	Calc	Heat capacity of the total mixture at user defined temperature and pressure.