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Number of tubes in a heat exchanger refers to the count of individual tubes that form the heat transfer surface inside the heat exchanger. Check FAQs
NTubes=0.0402(DBDOuter)2.617
NTubes - Number of Tubes?DB - Bundle Diameter?DOuter - Pipe Outer Diameter?

Number of Tubes in Six Pass Square Pitch given Bundle Diameter Example

With values
With units
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Here is how the Number of Tubes in Six Pass Square Pitch given Bundle Diameter equation looks like with Values.

Here is how the Number of Tubes in Six Pass Square Pitch given Bundle Diameter equation looks like with Units.

Here is how the Number of Tubes in Six Pass Square Pitch given Bundle Diameter equation looks like.

259Edit=0.0402(542Edit19Edit)2.617
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Number of Tubes in Six Pass Square Pitch given Bundle Diameter Solution

Follow our step by step solution on how to calculate Number of Tubes in Six Pass Square Pitch given Bundle Diameter?

FIRST Step Consider the formula
NTubes=0.0402(DBDOuter)2.617
Next Step Substitute values of Variables
NTubes=0.0402(542mm19mm)2.617
Next Step Convert Units
NTubes=0.0402(1m0m)2.617
Next Step Prepare to Evaluate
NTubes=0.0402(10)2.617
Next Step Evaluate
NTubes=258.585406991587
LAST Step Rounding Answer
NTubes=259

Number of Tubes in Six Pass Square Pitch given Bundle Diameter Formula Elements

Variables
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.
Symbol: NTubes
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Bundle Diameter
Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger.
Symbol: DB
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Pipe Outer Diameter
Pipe Outer Diameter refers to the measurement of the outside or external diameter of a cylindrical pipe. It includes the pipe thickness into it.
Symbol: DOuter
Measurement: LengthUnit: mm
Note: Value should be greater than 0.

Other Formulas to find Number of Tubes

​Go Number of Tubes in Shell and Tube Heat Exchanger
NTubes=4MflowρfluidVfπ(Dinner)2
​Go Number of Tubes in One Pass Triangular Pitch given Bundle Diameter
NTubes=0.319(DBDOuter)2.142
​Go Number of Tubes in Two Pass Triangular Pitch given Bundle Diameter
NTubes=0.249(DBDOuter)2.207
​Go Number of Tubes in Four Pass Triangular Pitch given Bundle Diameter
NTubes=0.175(DBDOuter)2.285

Other formulas in Basic Formulas of Heat Exchanger Designs category

​Go Equivalent Diameter for Square Pitch in Heat Exchanger
De=(1.27DOuter)((PTube2)-0.785(DOuter2))
​Go Equivalent Diameter for Triangular Pitch in Heat Exchanger
De=(1.10DOuter)((PTube2)-0.917(DOuter2))
​Go Number of Baffles in Shell and Tube Heat Exchanger
NBaffles=(LTubeLBaffle)-1
​Go Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch
Nr=DBPTube

How to Evaluate Number of Tubes in Six Pass Square Pitch given Bundle Diameter?

Number of Tubes in Six Pass Square Pitch given Bundle Diameter evaluator uses Number of Tubes = 0.0402*(Bundle Diameter/Pipe Outer Diameter)^2.617 to evaluate the Number of Tubes, The Number of Tubes in Six Pass Square Pitch given Bundle Diameter formula is defined as the number of tubes that can be accommodated in a Square pattern in a shell and tube heat exchanger. Number of Tubes is denoted by NTubes symbol.

How to evaluate Number of Tubes in Six Pass Square Pitch given Bundle Diameter using this online evaluator? To use this online evaluator for Number of Tubes in Six Pass Square Pitch given Bundle Diameter, enter Bundle Diameter (DB) & Pipe Outer Diameter (DOuter) and hit the calculate button.

FAQs on Number of Tubes in Six Pass Square Pitch given Bundle Diameter

What is the formula to find Number of Tubes in Six Pass Square Pitch given Bundle Diameter?
The formula of Number of Tubes in Six Pass Square Pitch given Bundle Diameter is expressed as Number of Tubes = 0.0402*(Bundle Diameter/Pipe Outer Diameter)^2.617. Here is an example- 283 = 0.0402*(0.542/0.019)^2.617.
How to calculate Number of Tubes in Six Pass Square Pitch given Bundle Diameter?
With Bundle Diameter (DB) & Pipe Outer Diameter (DOuter) we can find Number of Tubes in Six Pass Square Pitch given Bundle Diameter using the formula - Number of Tubes = 0.0402*(Bundle Diameter/Pipe Outer Diameter)^2.617.
What are the other ways to Calculate Number of Tubes?
Here are the different ways to Calculate Number of Tubes-
  • Number of Tubes=4*Mass Flowrate/(Fluid Density*Fluid Velocity*pi*(Pipe Inner Diameter)^2)OpenImg
  • Number of Tubes=0.319*(Bundle Diameter/Pipe Outer Diameter)^2.142OpenImg
  • Number of Tubes=0.249*(Bundle Diameter/Pipe Outer Diameter)^2.207OpenImg
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