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Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger. It is a critical parameter in heat exchanger design that affects the thermal performance and fluid dynamics of the system.
The calculator uses the formula:
Where:
Explanation: The bundle diameter is calculated by subtracting the shell clearance from the shell diameter. This clearance is essential for proper thermal expansion and maintenance access.
Details: Accurate bundle diameter calculation is crucial for proper heat exchanger design, ensuring optimal heat transfer efficiency, proper fluid flow distribution, and adequate space for thermal expansion and maintenance.
Tips: Enter shell diameter and shell clearance in meters. Both values must be positive numbers, and the shell clearance should be less than or equal to the shell diameter for valid results.
Q1: What is the typical range for shell clearance?
A: Shell clearance typically ranges from 10mm to 50mm depending on the heat exchanger size and design requirements.
Q2: Why is shell clearance necessary?
A: Shell clearance allows for thermal expansion of tubes, facilitates maintenance and cleaning, and ensures proper fluid flow around the tube bundle.
Q3: How does bundle diameter affect heat transfer?
A: Bundle diameter directly influences the cross-sectional area for shell-side flow, which affects velocity, pressure drop, and heat transfer coefficients.
Q4: Can bundle diameter be larger than shell diameter?
A: No, bundle diameter must always be smaller than shell diameter to allow for proper clearance and assembly.
Q5: What factors influence the required shell clearance?
A: Factors include thermal expansion requirements, fouling tendencies, maintenance needs, and industry standards for specific heat exchanger types.