Formula Used:
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Definition: This calculator estimates the number of tubes in a four-pass triangular pitch heat exchanger based on the bundle diameter and pipe outer diameter.
Purpose: It helps engineers determine the approximate number of tubes needed in heat exchanger design.
The calculator uses the formula:
Where:
Explanation: The formula is an empirical relationship that estimates tube count based on the ratio of bundle diameter to tube diameter.
Details: Proper tube count estimation is crucial for heat exchanger design, affecting heat transfer efficiency, pressure drop, and mechanical design.
Tips: Enter the bundle diameter and pipe outer diameter in meters. Both values must be > 0.
Q1: What is a four-pass triangular pitch arrangement?
A: It's a common heat exchanger configuration where tubes are arranged in a triangular pattern and the fluid makes four passes through the tube bundle.
Q2: How accurate is this formula?
A: It provides a good estimate but actual tube counts may vary based on specific design constraints and tube layout.
Q3: Can this be used for other pitch arrangements?
A: This formula is specifically for triangular pitch. Square pitch arrangements would require a different formula.
Q4: What's the typical range for bundle diameter?
A: Bundle diameters typically range from 0.1m for small exchangers to over 2m for large industrial units.
Q5: How do I find the pipe outer diameter?
A: This is a standard dimension available from pipe manufacturers or engineering references.