AVEVA™ Process Simulation

Fluids Library

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Fluids Library

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Last UpdatedJul 08, 2025
4 minute read

The Fluids Library is a standard Model Library provided with AVEVA Process Simulation. It provides a collection of predefined fluids that you can use in simulations. To use a fluid, drag the fluid onto a Source model.

The following table lists the models that are available in this Model Library. The table includes very brief descriptions for each model. The Model Help in the AVEVA Process Simulation user interface contains more detailed information for these models. See Open the Model Help for a Model Type or Model Library for more information.

Name	Type	Description
RXCO2_DEA_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for carbon dioxide (CO2) and diethanolamine (DEA) in water.
RXCO2_MDEA_DEA_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2, methyldiethanolamine (MDEA), and DEA in water.
RXCO2_MDEA_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2 and MDEA in water.
RXCO2_MDEA_MEA_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2, MDEA, and monoethanolamine (MEA) in water.
RXCO2_MDEA_PZ_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2, MDEA, and piperazine (PZ) in water.
RXCO2_MEA_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2 and MEA in water.
RXDGA	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2, hydrogen sulfide (H2S), and diglycolamine (DGA) in water.
RXDIPA	Submodel	Provides the equilibrium reaction kinetics for the electrolytic dissociation reactions for CO2, H2S, and diisopropanolamine (DIPA) in water.
RXH2SO4_BE	Submodel	Provides the equilibrium reaction kinetics for the dissociation of sulfuric acid in water. This reaction submodel supports the Bosen-Engels approach for electrolytes and uses the data from Bosen and Engels.
RXHCl_BE*	Submodel	Provides the equilibrium reaction kinetics for the dissociation of hydrochloric acid in water. In the dissociation reaction, the chlorine ion forms a complex with water with a coordination number of two. This reaction submodel supports the Bosen-Engels approach for electrolytes and uses the data from Bosen and Engels.
RXHCl_m2_BE	Submodel	Provides the equilibrium reaction kinetics for the dissociation of hydrochloric acid in water. In the dissociation reaction, the chlorine ion forms a complex with water with a coordination number of one. This reaction submodel supports the Bosen-Engels approach for electrolytes and uses the data from Bosen and Engels.
RXHCl_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the dissociation of hydrochloric acid in water. This reaction submodel supports the Electrolyte NRTL method and uses the data from Saravi et al.
RXHF	Submodel	Provides the equilibrium reaction kinetics for the hexamerization of gaseous hydrofluoric acid. This reaction submodel supports any thermodynamic method and uses the data from Long et al.
RXHNO3_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the dissociation of nitric acid in water. This reaction submodel supports the Electrolyte NRTL method and uses the data from Wang et al.
RXKCl_eNRTL	Submodel	Provides the equilibrium reaction kinetics for the dissociation of potassium chloride in water. This reaction submodel supports the Electrolyte NRTL method and uses the data from Bhattacharia and Chen.
StreamCO2DEA_eNRTL	Submodel	Provides the variables and equations needed to calculate the pH, apparent composition, and carbon dioxide loading for electrolytic systems of CO2 and DEA in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamCO2MDEA_eNRTL	Submodel	Provides the variables and equations needed to calculate the pH, apparent composition, and CO2 loading for electrolytic systems of CO2 and MDEA in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamCO2MDEADEA_eNRTL	Submodel	Provides the variables and equations needed to calculate the pH, apparent composition, and CO2 loading for electrolytic systems of CO2, MDEA, and DEA in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamCO2MDEAMEA_eNRTL	Submodel	Provides the variables and equations needed to calculate the pH, apparent composition, and CO2 loading for electrolytic systems of CO2, MDEA, and MEA in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamCO2MDEAPZ_eNRTL	Submodel	Provides the variables and equations needed to calculate the pH, apparent composition, and CO2 loading for electrolytic systems of CO2, MDEA, and PZ in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamCO2MEA_eNRTL	Submodel	Provides the variables and equations needed to calculate the pH, apparent composition, and CO2 loading for electrolytic systems of CO2 and MEA in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamDGA	Submodel	Provides the variables and equations needed to calculate the pH, the apparent compositions, the CO2 loading, and the H2S loading for electrolytic systems of CO2, H2S, and DGA in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamDIPA	Submodel	Provides the variables and equations needed to calculate the pH, the apparent compositions, the CO2 loading, and the H2S loading for electrolytic systems of CO2, H2S, DIPA, and sulfolane in water. You can use this replaceable submodel in a Stream's PropModelType parameter.
StreamH2SO4_BE	Submodel	Provides the variables and equations needed to calculate the pH and apparent composition for electrolytic sulfuric acid. You can use this replaceable submodel in a Stream's PropModelType parameter. It supports the Bosen-Engels approach for electrolytes.
StreamHCl_BE	Submodel	Provides the variables and equations needed to calculate the pH and apparent composition for electrolytic hydrochloric acid. In the dissociation reaction, the chlorine ion forms a complex with water with a coordination number of two. You can use this replaceable submodel in a Stream's PropModelType parameter. It supports the Bosen-Engels approach for electrolytes.
StreamHCl_m2_BE	Submodel	Provides the variables and equations needed to calculate the pH and apparent composition for electrolytic hydrochloric acid. In the dissociation reaction, the chlorine ion forms a complex with water with a coordination number of one. You can use this replaceable submodel in a Stream's PropModelType parameter. It supports the Bosen-Engels approach for electrolytes.
UAFuelCombustion	Submodel	Provides the reaction kinetics for the complete combustion reaction of a biomass (such as coal) based on its ultimate analysis.

* Only Model Writers can view these submodels.

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