Number of Tubes in Two Pass Square Pitch given Bundle Diameter Calculator

✖Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger.ⓘ Bundle Diameter [D_B]			+10% -10%
✖Pipe Outer Diameter refers to the measurement of the outside or external diameter of a cylindrical pipe. It includes the pipe thickness into it.ⓘ Pipe Outer Diameter [D_Outer]			+10% -10%

✖Number of tubes in a heat exchanger refers to the count of individual tubes that form the heat transfer surface inside the heat exchanger.ⓘ Number of Tubes in Two Pass Square Pitch given Bundle Diameter [N_Tubes]

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Formula

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Number of Tubes in Two Pass Square Pitch given Bundle Diameter

Formula

N Tubes = 0.156 \cdot {(\frac{D B}{D Outer})}^{2.291}

Example

337 = 0.156 \cdot {(\frac{542 mm}{19 mm})}^{2.291}

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Number of Tubes in Two Pass Square Pitch given Bundle Diameter Solution

STEP 0: Pre-Calculation Summary

Formula Used

Number of Tubes = 0.156*(Bundle Diameter/Pipe Outer Diameter)^2.291
N_Tubes = 0.156*(D_B/D_Outer)^2.291
This formula uses 3 Variables

Variables Used

Number of Tubes - Number of tubes in a heat exchanger refers to the count of individual tubes that form the heat transfer surface inside the heat exchanger.
Bundle Diameter - (Measured in Meter) - Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger.
Pipe Outer Diameter - (Measured in Meter) - Pipe Outer Diameter refers to the measurement of the outside or external diameter of a cylindrical pipe. It includes the pipe thickness into it.

STEP 1: Convert Input(s) to Base Unit

Bundle Diameter: 542 Millimeter --> 0.542 Meter (Check conversion here)
Pipe Outer Diameter: 19 Millimeter --> 0.019 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

N_Tubes = 0.156*(D_B/D_Outer)^2.291 --> 0.156*(0.542/0.019)^2.291

Evaluating ... ...

N_Tubes = 336.583222435842

STEP 3: Convert Result to Output's Unit

336.583222435842 --> No Conversion Required

FINAL ANSWER

336.583222435842 ≈ 337 <-- Number of Tubes

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Process Equipment Design » Heat Exchangers » Basic Formulas of Heat Exchanger Designs » Number of Tubes in Two Pass Square Pitch given Bundle Diameter

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< Basic Formulas of Heat Exchanger Designs Calculators

Equivalent Diameter for Triangular Pitch in Heat Exchanger

Go Equivalent Diameter = (1.10/Pipe Outer Diameter)*((Tube Pitch^2)-0.917*(Pipe Outer Diameter^2))

Equivalent Diameter for Square Pitch in Heat Exchanger

Go Equivalent Diameter = (1.27/Pipe Outer Diameter)*((Tube Pitch^2)-0.785*(Pipe Outer Diameter^2))

Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch

Go Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch

Number of Baffles in Shell and Tube Heat Exchanger

Go Number of Baffles = (Length of Tube/Baffle Spacing)-1

Number of Tubes in Two Pass Square Pitch given Bundle Diameter Formula

Number of Tubes = 0.156*(Bundle Diameter/Pipe Outer Diameter)^2.291
N_Tubes = 0.156*(D_B/D_Outer)^2.291

What is Bundle Diameter in Heat Exchanger?

The bundle diameter in a shell and tube heat exchanger is the diameter of the tube bundle, which is a critical component influencing heat transfer efficiency, pressure drop, and maintenance considerations. In a single pass design/1-Tube pass, fluid flows through the tubes only once. The inlet of one fluid is connected to one end of the tubes, and the outlet is connected to the other end. This design is simple and suitable for applications where a moderate level of heat transfer is required.

How to Calculate Number of Tubes in Two Pass Square Pitch given Bundle Diameter?

Number of Tubes in Two Pass Square Pitch given Bundle Diameter calculator uses Number of Tubes = 0.156*(Bundle Diameter/Pipe Outer Diameter)^2.291 to calculate the Number of Tubes, The Number of Tubes in Two Pass Square Pitch given Bundle Diameter formula is defined as the number of tubes that can be accommodated in a Square pattern having 2 tube pass in a shell and tube heat exchanger. Number of Tubes is denoted by N_Tubes symbol.

How to calculate Number of Tubes in Two Pass Square Pitch given Bundle Diameter using this online calculator? To use this online calculator for Number of Tubes in Two Pass Square Pitch given Bundle Diameter, enter Bundle Diameter (D_B) & Pipe Outer Diameter (D_Outer) and hit the calculate button. Here is how the Number of Tubes in Two Pass Square Pitch given Bundle Diameter calculation can be explained with given input values -> 364 = 0.156*(0.542/0.019)^2.291.

FAQ

What is Number of Tubes in Two Pass Square Pitch given Bundle Diameter?

The Number of Tubes in Two Pass Square Pitch given Bundle Diameter formula is defined as the number of tubes that can be accommodated in a Square pattern having 2 tube pass in a shell and tube heat exchanger and is represented as N_Tubes = 0.156*(D_B/D_Outer)^2.291 or Number of Tubes = 0.156*(Bundle Diameter/Pipe Outer Diameter)^2.291. Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger & Pipe Outer Diameter refers to the measurement of the outside or external diameter of a cylindrical pipe. It includes the pipe thickness into it.

How to calculate Number of Tubes in Two Pass Square Pitch given Bundle Diameter?

The Number of Tubes in Two Pass Square Pitch given Bundle Diameter formula is defined as the number of tubes that can be accommodated in a Square pattern having 2 tube pass in a shell and tube heat exchanger is calculated using Number of Tubes = 0.156*(Bundle Diameter/Pipe Outer Diameter)^2.291. To calculate Number of Tubes in Two Pass Square Pitch given Bundle Diameter, you need Bundle Diameter (D_B) & Pipe Outer Diameter (D_Outer). With our tool, you need to enter the respective value for Bundle Diameter & Pipe Outer Diameter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Number of Tubes?

In this formula, Number of Tubes uses Bundle Diameter & Pipe Outer Diameter. We can use 3 other way(s) to calculate the same, which is/are as follows -

Number of Tubes = 4*Mass Flowrate/(Fluid Density*Fluid Velocity*pi*(Pipe Inner Diameter)^2)
Number of Tubes = 0.319*(Bundle Diameter/Pipe Outer Diameter)^2.142
Number of Tubes = 0.249*(Bundle Diameter/Pipe Outer Diameter)^2.207

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