BUNDLE_FROM_TUBES

This function calculates the bundle diameter needed to accommodate a target tube count for specified tube size, pitch, pass count, and layout angle. It supports multiple sizing methods consistent with tube-count routines.

The sizing relation is D_{bundle}=f(N, D_o, p, N_{tp}, \theta, \text{method}).

Excel Usage

=BUNDLE_FROM_TUBES(N, Do, pitch, Ntp, angle, bundle_meth)
  • N (int, required): Total number of tubes (-).
  • Do (float, required): Tube outer diameter (m).
  • pitch (float, required): Tube pitch (m).
  • Ntp (int, optional, default: 1): Number of tube passes (-).
  • angle (int, optional, default: 30): Tube layout angle (degrees).
  • bundle_meth (str, optional, default: null): Tube count method selection (-).

Returns (float): Outer diameter of tube bundle (m).

Example 1: Bundle size using default method

Inputs:

N Do pitch
1285 0.025 0.03125

Excel formula:

=BUNDLE_FROM_TUBES(1285, 0.025, 0.03125)

Expected output:

1.19857

Example 2: Bundle size using Phadkeb method

Inputs:

N Do pitch Ntp bundle_meth
782 0.028 0.036 2 Phadkeb

Excel formula:

=BUNDLE_FROM_TUBES(782, 0.028, 0.036, 2, "Phadkeb")

Expected output:

1.10319

Example 3: Bundle size using VDI method

Inputs:

N Do pitch Ntp bundle_meth
970 0.00735 0.015 2 VDI

Excel formula:

=BUNDLE_FROM_TUBES(970, 0.00735, 0.015, 2, "VDI")

Expected output:

0.50036

Example 4: Bundle size using HEDH method

Inputs:

N Do pitch bundle_meth
928 0.028 0.036 HEDH

Excel formula:

=BUNDLE_FROM_TUBES(928, 0.028, 0.036, "HEDH")

Expected output:

1.18399

Python Code

Show Code 
from ht.hx import size_bundle_from_tubecount as hx_size_bundle_from_tubecount

def bundle_from_tubes(N, Do, pitch, Ntp=1, angle=30, bundle_meth=None):
    """
    Calculate bundle diameter required for a specified tube count.

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

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

    Args:
        N (int): Total number of tubes (-).
        Do (float): Tube outer diameter (m).
        pitch (float): Tube pitch (m).
        Ntp (int, optional): Number of tube passes (-). Default is 1.
        angle (int, optional): Tube layout angle (degrees). Default is 30.
        bundle_meth (str, optional): Tube count method selection (-). Valid options: Phadkeb, HEDH, VDI, Perry. Default is None.

    Returns:
        float: Outer diameter of tube bundle (m).
    """
    try:
        result = hx_size_bundle_from_tubecount(N=N, Do=Do, pitch=pitch, Ntp=Ntp, angle=angle, Method=bundle_meth)
        return result
    except Exception as e:
        return f"Error: {str(e)}"

Online Calculator

Total number of tubes (-).
Tube outer diameter (m).
Tube pitch (m).
Number of tube passes (-).
Tube layout angle (degrees).
Tube count method selection (-).