REFRACTORY_VDI_CP

This function returns refractory specific heat capacity from tabulated VDI data for a selected material. The value is temperature dependent over the supported range and is obtained by interpolation between tabulated points.

Specific heat capacity connects heat input and temperature rise:

q = m C_p \Delta T

If no temperature is provided, the lowest tabulated-temperature value is used. Temperatures outside the supported range are clipped to the nearest limit.

Excel Usage

=REFRACTORY_VDI_CP(ID, T)

ID (str, required): Refractory material ID (dimensionless).
T (float, optional, default: null): Temperature of the refractory material (K).

Returns (float): Heat capacity of the refractory material (J/kg/K).

Example 1: Fused silica default temperature

Inputs:

ID	T
Fused silica

Excel formula:

=REFRACTORY_VDI_CP("Fused silica", )

Expected output:

917

Example 2: Fused silica low temperature

Inputs:

ID	T
Fused silica	200

Excel formula:

=REFRACTORY_VDI_CP("Fused silica", 200)

Expected output:

917

Example 3: Fused silica mid temperature

Inputs:

ID	T
Fused silica	1000

Excel formula:

=REFRACTORY_VDI_CP("Fused silica", 1000)

Expected output:

956.782

Example 4: Fused silica high temperature

Inputs:

ID	T
Fused silica	1500

Excel formula:

=REFRACTORY_VDI_CP("Fused silica", 1500)

Expected output:

982

Python Code

Show Code

from ht.insulation import refractory_VDI_Cp as ht_refractory_VDI_Cp

def refractory_VDI_Cp(ID, T=None):
    """
    Return refractory heat capacity from VDI data.

    See: https://ht.readthedocs.io/en/latest/ht.insulation.html

    This example function is provided as-is without any representation of accuracy.

    Args:
        ID (str): Refractory material ID (dimensionless).
        T (float, optional): Temperature of the refractory material (K). Default is None.

    Returns:
        float: Heat capacity of the refractory material (J/kg/K).
    """
    try:
        result = ht_refractory_VDI_Cp(ID, T)
        return float(result)
    except Exception as e:
        return f"Error: {str(e)}"

Online Calculator

ID *

Refractory material ID (dimensionless).

Temperature of the refractory material (K).