recordBDSP_IIR_P05_30_T263_343
Extends from AixLib.DataBase.Media.Refrigerants.BubbleDewStatePropertiesBaseDataDefinition (Base data definition for fitting coefficients of thermodynamic state properties at bubble and dew line).
Information
In this record, fitting coefficients are provided for thermodynamic properties at bubble and dew line. For detailed information of these thermodynamic properties as well as the fitting coefficients, please checkout AixLib.DataBase.Media.Refrigerants.BubbleDewStatePropertiesBaseDataDefinition . The fitting coefficients are used in a hybrid refrigerant model provided in AixLib.Media.Refrigerants. For detailed information, please checkout AixLib.Media.Refrigerants.Interfaces.TemplateHybridTwoPhaseMediumRecord.
Assumptions and limitations
The provided coefficients are fitted to external data by Sangi et al.
and are valid within the following range:
|
Parameter |
Minimum Value |
Maximum Value |
|
Pressure (p) in bar |
0.5 |
30 |
|
Temperature (T) in K |
263.15 |
343.15 |
The reference point is defined as 200 kJ/kg and 1 kJ/kg/K, respectively, for enthalpy and entropy for the saturated liquid at 273.15 K.
References
Sangi, Roozbeh; Jahangiri, Pooyan; Klasing, Freerk; Streblow, Rita; Müller, Dirk (2014): A Medium Model for the Refrigerant Propane for Fast and Accurate Dynamic Simulations. In: The 10th International Modelica Conference. Lund, Sweden, March 10-12, 2014: Linköping University Electronic Press (Linköping Electronic Conference Proceedings), S. 1271–1275
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| General | |||
| String | name (from BubbleDewStatePropertiesBaseDataDefinition) | Short description of the record | |
| Saturation pressure | |||
| Integer | psat_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for saturation pressure | |
| Real[:] | psat_N (from BubbleDewStatePropertiesBaseDataDefinition) | First coefficient for saturation pressure | |
| Real[:] | psat_E (from BubbleDewStatePropertiesBaseDataDefinition) | Second coefficient for saturation pressure | |
| Saturation temperature | |||
| Integer | Tsat_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for saturation temperature | |
| Real[:] | Tsat_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for saturation temperature | |
| Real[:] | Tsat_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (p) | Std input (p) | Mean output (T) | Std output (T) | |
| Bubble density | |||
| Integer | dl_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for bubble density | |
| Real[:] | dl_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for bubble density | |
| Real[:] | dl_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (T) | Std input (T) | Mean output (dl) | Std output (dl) | |
| Dew density | |||
| Integer | dv_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for dew density | |
| Real[:] | dv_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for dew density | |
| Real[:] | dv_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (T) | Std input (T) | Mean output (dv) | Std output (dv) | |
| Bubble Enthalpy | |||
| Integer | hl_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for bubble enthalpy | |
| Real[:] | hl_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for bubble enthalpy | |
| Real[:] | hl_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (p) | Std input (p) | Mean output (hl) | Std output (hl) | |
| Dew Enthalpy | |||
| Integer | hv_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for dew enthalpy | |
| Real[:] | hv_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for dew enthalpy | |
| Real[:] | hv_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (p) | Std input (p) | Mean output (hv) | Std output (hv) | |
| Bubble Entropy | |||
| Integer | sl_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for bubble entropy | |
| Real[:] | sl_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for bubble entropy | |
| Real[:] | sl_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (p) | Std input (p) | Mean output (sl) | Std output (sl) | |
| Dew Entropy | |||
| Integer | sv_Nt (from BubbleDewStatePropertiesBaseDataDefinition) | Number of terms for dew entropy | |
| Real[:] | sv_N (from BubbleDewStatePropertiesBaseDataDefinition) | Fitting coefficients for dew entropy | |
| Real[:] | sv_IO (from BubbleDewStatePropertiesBaseDataDefinition) | Mean input (p) | Std input (p) | Mean output (sv) | Std output (sv) | |
Revisions
- June 10, 2017, by Mirko Engelpracht, Christian Vering:
First implementation (see issue 408).