Bundle Diameter for Six Tube Pass Square Pitch in Heat Exchanger Calculator

Bundle Diameter Formula:

\[ D_{Bundle} = D_{O} \times \left( \frac{N_T}{0.0402} \right)^{\frac{1}{2.617}} \]

Bundle Diameter (D_Bundle):

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1. What is Bundle Diameter?

Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger. It is a critical parameter in heat exchanger design that determines the overall size and arrangement of tubes in a six tube pass square pitch configuration.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ D_{Bundle} = D_{O} \times \left( \frac{N_T}{0.0402} \right)^{\frac{1}{2.617}} \]

Where:

\( D_{Bundle} \) — Bundle diameter (m)
\( D_{O} \) — Pipe outer diameter (m)
\( N_T \) — Number of tubes in bundle
0.0402 — Empirical constant for six tube pass square pitch
2.617 — Empirical exponent for six tube pass square pitch

Explanation: This empirical formula calculates the bundle diameter based on the tube outer diameter and the number of tubes arranged in a six tube pass square pitch configuration.

3. Importance of Bundle Diameter Calculation

Details: Accurate bundle diameter calculation is crucial for heat exchanger design, shell sizing, flow distribution, and overall heat transfer efficiency. It ensures proper spacing and arrangement of tubes within the heat exchanger shell.

4. Using the Calculator

Tips: Enter pipe outer diameter in meters and the number of tubes. Both values must be positive numbers (diameter > 0, number of tubes ≥ 1).

5. Frequently Asked Questions (FAQ)

Q1: What is six tube pass square pitch configuration?
A: It refers to a specific tube arrangement where tubes are laid out in a square pattern with six separate flow paths for the tube-side fluid.

Q2: How does bundle diameter affect heat exchanger performance?
A: Bundle diameter affects shell-side flow velocity, pressure drop, heat transfer coefficient, and overall heat exchanger size and efficiency.

Q3: Are there different formulas for different tube arrangements?
A: Yes, different tube pass configurations (triangular pitch, square pitch) and different numbers of tube passes require different empirical constants and exponents.

Q4: What are typical values for pipe outer diameter?
A: Typical heat exchanger tubes have outer diameters ranging from 15mm to 50mm (0.015m to 0.050m), depending on the application.

Q5: When should this formula be used?
A: This specific formula is designed for heat exchangers with six tube passes and square pitch tube arrangement. Different configurations require different formulas.