MONTINSKY

This function estimates nucleate boiling heat transfer coefficient via the Montinsky correlation as a function of saturation pressure, critical pressure, and either excess wall temperature or heat flux.

In practical use, the model has the form:

h = f\left(P, P_c, \Delta T_e\right) \; \text{or} \; h = f\left(P, P_c, q\right)

It provides a pressure-based empirical boiling coefficient for engineering calculations.

Excel Usage

=MONTINSKY(P, Pc, Te, q)

P (float, required): Saturation pressure of fluid (Pa).
Pc (float, required): Critical pressure of fluid (Pa).
Te (float, optional, default: null): Excess wall temperature (K).
q (float, optional, default: null): Heat flux (W/m^2).

Returns (float): Heat transfer coefficient (W/m^2/K), or an error message if invalid.

Example 1: Water boiling with excess temperature

Inputs:

P	Pc	Te
101325	22048321	4.3

Excel formula:

=MONTINSKY(101325, 22048321, 4.3)

Expected output:

1185.05

Example 2: Water boiling with heat flux

Inputs:

P	Pc	q
101325	22048321	22000

Excel formula:

=MONTINSKY(101325, 22048321, 22000)

Expected output:

3299.05

Example 3: Higher pressure with excess temperature

Inputs:

P	Pc	Te
300000	22048321	8

Excel formula:

=MONTINSKY(300000, 22048321, 8)

Expected output:

9895.4

Example 4: Higher pressure with heat flux

Inputs:

P	Pc	q
300000	22048321	35000

Excel formula:

=MONTINSKY(300000, 22048321, 35000)

Expected output:

5588.75

Python Code

Show Code

from ht.boiling_nucleic import Montinsky as ht_Montinsky

def Montinsky(P, Pc, Te=None, q=None):
    """
    Compute nucleate boiling heat transfer coefficient using the Montinsky correlation.

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

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

    Args:
        P (float): Saturation pressure of fluid (Pa).
        Pc (float): Critical pressure of fluid (Pa).
        Te (float, optional): Excess wall temperature (K). Default is None.
        q (float, optional): Heat flux (W/m^2). Default is None.

    Returns:
        float: Heat transfer coefficient (W/m^2/K), or an error message if invalid.
    """
    try:
        return ht_Montinsky(P=P, Pc=Pc, Te=Te, q=q)
    except Exception as e:
        return f"Error: {str(e)}"

Online Calculator

P *

Saturation pressure of fluid (Pa).

Pc *

Critical pressure of fluid (Pa).

Excess wall temperature (K).

Heat flux (W/m^2).