modelBasalt

Basalt | data from Nahhas(2019) | temperature dependent cp and lambda

Extends from TransiEnt.Basics.Media.Base.BaseSolidWithTemperatureVariantHeatCapacity (Base Solid with two additional variables: specific internal Energy and specific Entropy).

Information

1. Purpose of model

This model contains exemplary material data of basalt with temperature variant heat capacity and thermal conductivity. Both properties are approximated as polynomials in temperature.

2. Level of detail, physical effects considered, and physical insight

The properties of natural rock may vary significantly among quaries etc. This media model represent the measured data of the paper cited below.

3. Limits of validity

(Purely technical component without physical modeling.)

4.Interfaces

(no remarks)

5. Nomenclature

(no elements)

6. Governing Equations

(no equations)

7. Remarks for Usage

(no remarks)

8. Validation

(no validation or testing necessary)

9. References

Data is taken from:

T. Nahhas, X. Py, N. Sadiki, Experimental investigation of basalt rocks as storage material for high-temperature concentrated solar power plants, Renewable and Sustainable Energy Reviews 110 (2019) 226–235.

10. Version History

Created by Michael von der Heyde (heyde@tuhh.de), March 2021, for the FES research project

Parameters

TypeNameDefaultDescription
SI.SpecificHeatCapacitycp_nominal (from BaseSolid)Specific heat capacity at standard reference point
SI.ThermalConductivitylambda_nominal (from BaseSolid)Thermal conductivity at standard reference point
SI.Densityd (from BaseSolid)Density
Realnu_nominal (from BaseSolid)Poisson's ratio at standard reference point
ClaRa.Basics.Units.ElasticityModuleE_nominal (from BaseSolid)Elasticity module of steel at standard reference point
ClaRa.Basics.Units.HeatExpansionRateLinearbeta_nominal (from BaseSolid)Linear heat expansion coefficient at standard reference point
SI.ShearModulusG_nominal (from BaseSolid)Shear modulus at standard reference point

Components

TypeNameDefaultDescription
SI.TemperatureT (from BaseSolid)Temperature
SI.SpecificHeatCapacitycp (from BaseSolid)Heat capacity
SI.ThermalConductivitylambda (from BaseSolid)Thermal conductivity
Realnu (from BaseSolid)Poisson's ratio
ClaRa.Basics.Units.ElasticityModuleE (from BaseSolid)Elasticity module of steel
ClaRa.Basics.Units.HeatExpansionRateLinearbeta (from BaseSolid)Linear heat expansion coefficient
ClaRa.Basics.Units.ShearModulusG (from BaseSolid)Shear modulus
ClaRa.Basics.Units.EnergyMassSpecificspecificInternalEnergy (from BaseSolidWithTemperatureVariantHeatCapacity)
ClaRa.Basics.Units.EntropyMassSpecificspecificEntropy (from BaseSolidWithTemperatureVariantHeatCapacity)

Contents

NameDescription
thermalConductivitylambdap = (C1 + C2*T)^-1
specificHeatCapacitycp = C1 + C2*T + C3*T^-2
integral_cp_dTcp = C1 + C2*T + C3*T^-2
integral_cpOverT_dTcp = C1 + C2*T + C3*T^-2