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

✖Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger.ⓘ Bundle Diameter [D_B]			+10% -10%
✖Tube Pitch in a heat exchanger refers to the center-to-center spacing between adjacent tubes in a tube bundle of heat exchanger.ⓘ Tube Pitch [P_Tube]			+10% -10%

✖Number of Tubes in Vertical Tube Row is defined as the tubes that are placed exactly in the center/Vertical Orientation of the tube bundle layout.ⓘ Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch [N_r]

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

Formula

`"N"_{"r"} = "D"_{"B"}/"P"_{"Tube"}`

Example

`"23.56522"="542mm"/"23mm"`

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

STEP 0: Pre-Calculation Summary

Formula Used

Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch
N_r = D_B/P_Tube
This formula uses 3 Variables

Variables Used

Number of Tubes in Vertical Tube Row - Number of Tubes in Vertical Tube Row is defined as the tubes that are placed exactly in the center/Vertical Orientation of the tube bundle layout.
Bundle Diameter - (Measured in Millimeter) - Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger.
Tube Pitch - (Measured in Millimeter) - Tube Pitch in a heat exchanger refers to the center-to-center spacing between adjacent tubes in a tube bundle of heat exchanger.

STEP 1: Convert Input(s) to Base Unit

Bundle Diameter: 542 Millimeter --> 542 Millimeter No Conversion Required
Tube Pitch: 23 Millimeter --> 23 Millimeter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

N_r = D_B/P_Tube --> 542/23

Evaluating ... ...

N_r = 23.5652173913043

STEP 3: Convert Result to Output's Unit

23.5652173913043 --> No Conversion Required

FINAL ANSWER

23.5652173913043 ≈ 23.56522 <-- Number of Tubes in Vertical Tube Row

(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 Center Row Given Bundle Diameter and Tube Pitch

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Malviya National Institute Of Technology (MNIT JAIPUR ), JAIPUR

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< 25 Basic Formulas Of Heat Exchanger Designs Calculators

Pressure Drop of Vapor in Condensers given Vapors on Shell Side

Go Shell Side Pressure Drop = 0.5*8*Friction Factor*(Length of Tube/Baffle Spacing)*(Shell Diameter/Equivalent Diameter)*(Fluid Density/2)*(Fluid Velocity^2)*((Fluid Viscosity at Bulk Temperature/Fluid Viscosity at Wall Temperature)^-0.14)

Shell Side Pressure Drop in Heat Exchanger

Go Shell Side Pressure Drop = (8*Friction Factor*(Length of Tube/Baffle Spacing)*(Shell Diameter/Equivalent Diameter))*(Fluid Density/2)*(Fluid Velocity^2)*((Fluid Viscosity at Bulk Temperature/Fluid Viscosity at Wall Temperature)^-0.14)

Tube Side Pressure Drop in Heat Exchanger for Turbulent Flow

Go Tube Side Pressure Drop = Number of Tube-Side Passes*(8*Friction Factor*(Length of Tube/Pipe Inner Diameter)*(Fluid Viscosity at Bulk Temperature/Fluid Viscosity at Wall Temperature)^-0.14+2.5)*(Fluid Density/2)*(Fluid Velocity^2)

Tube Side Pressure Drop in Heat Exchanger for Laminar Flow

Reynolds Number for Condensate Film Outside Vertical Tubes in Heat Exchanger

Go Reynold Number = 4*Mass Flowrate/(pi*Pipe Outer Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature)

Reynolds Number for Condensate Film Inside Vertical Tubes in Condenser

Go Reynold Number = 4*Mass Flowrate/(pi*Pipe Inner Diameter*Number of Tubes*Fluid Viscosity at Bulk Temperature)

Number of Tubes in Shell and Tube Heat Exchanger

Go Number of Tubes = 4*Mass Flowrate/(Fluid Density*Fluid Velocity*pi*(Pipe Inner Diameter)^2)

Shell Area for Heat Exchanger

Go Shell Area = (Tube Pitch-Pipe Outer Diameter)*Shell Diameter*(Baffle Spacing/Tube Pitch)

Stack Design Pressure Draft for Furnace

Go Draft Pressure = 0.0342*(Stack Height)*Atmospheric Pressure*(1/Ambient Temperature-1/Flue Gas Temperature)

Number of Transfer Units for Plate Heat Exchanger

Go Number of Transfer Units = (Outlet Temperature-Inlet Temperature)/Log Mean Temperature Difference

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))

Viscosity Correction Factor for Shell and Tube Heat Exchanger

Go Viscosity Correction Factor = (Fluid Viscosity at Bulk Temperature/Fluid Viscosity at Wall Temperature)^0.14

Pumping Power Required in Heat Exchanger Given Pressure Drop

Go Pumping Power = (Mass Flowrate*Tube Side Pressure Drop)/Fluid Density

Heat Exchanger Volume for Hydrocarbon Applications

Go Heat Exchanger Volume = (Heat Duty of Heat Exchanger/Log Mean Temperature Difference)/100000

Heat Exchanger Volume for Air Separation Applications

Go Heat Exchanger Volume = (Heat Duty of Heat Exchanger/Log Mean Temperature Difference)/50000

Provision for Thermal Expansion and Contraction in Heat Exchanger

Go Thermal Expansion = (97.1*10^-6)*Length of Tube*Temperature Difference

Number of Tubes in Eight Pass Triangular Pitch given Bundle Diameter

Go Number of Tubes = 0.0365*(Bundle Diameter/Pipe Outer Diameter)^2.675

Number of Tubes in Six Pass Triangular Pitch given Bundle Diameter

Go Number of Tubes = 0.0743*(Bundle Diameter/Pipe Outer Diameter)^2.499

Number of Tubes in Four Pass Triangular Pitch given Bundle Diameter

Go Number of Tubes = 0.175*(Bundle Diameter/Pipe Outer Diameter)^2.285

Number of Tubes in One Pass Triangular Pitch given Bundle Diameter

Go Number of Tubes = 0.319*(Bundle Diameter/Pipe Outer Diameter)^2.142

Number of Tubes in Two Pass Triangular Pitch given Bundle Diameter

Go Number of Tubes = 0.249*(Bundle Diameter/Pipe Outer Diameter)^2.207

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

Shell Diameter of Heat Exchanger Given Clearance and Bundle Diameter

Go Shell Diameter = Shell Clearance+Bundle Diameter

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

Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch
N_r = D_B/P_Tube

What is Shell and Tube heat exchanger?

A Shell and Tube Heat Exchanger is a common type of heat exchanger used in various industrial applications to transfer heat between two fluids. It consists of a large, cylindrical outer shell (usually made of metal) with multiple smaller tubes (also made of metal) running through it. The tubes are arranged in a bundle inside the shell and are typically oriented parallel to the shell's longitudinal axis.

What is the significance of number of tubes?

The number of tubes in a heat exchanger is a critical design parameter that significantly impacts the performance and characteristics of the heat exchanger. The number of tubes directly influences the total heat transfer area of the heat exchanger. More tubes mean a larger surface area for heat exchange between the hot and cold fluids. This leads to improved heat transfer efficiency and better overall performance.

The number of tubes in the central rows is a crucial parameter for designing of the condensers as it forms the basis of tubes that are effectively in contact with the vapor and the condensate.

How to Calculate Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch?

Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch calculator uses Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch to calculate the Number of Tubes in Vertical Tube Row, The Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch formula is defined as the tubes that are placed exactly in the central row of a tube Bundle in a shell and tube heat exchanger. Number of Tubes in Vertical Tube Row is denoted by N_r symbol.

How to calculate Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch using this online calculator? To use this online calculator for Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch, enter Bundle Diameter (D_B) & Tube Pitch (P_Tube) and hit the calculate button. Here is how the Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch calculation can be explained with given input values -> 23.56522 = 0.542/0.023.

FAQ

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

The Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch formula is defined as the tubes that are placed exactly in the central row of a tube Bundle in a shell and tube heat exchanger and is represented as N_r = D_B/P_Tube or Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch. Bundle Diameter refers to the diameter of the tube bundle within the heat exchanger & Tube Pitch in a heat exchanger refers to the center-to-center spacing between adjacent tubes in a tube bundle of heat exchanger.

How to calculate Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch?

The Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch formula is defined as the tubes that are placed exactly in the central row of a tube Bundle in a shell and tube heat exchanger is calculated using Number of Tubes in Vertical Tube Row = Bundle Diameter/Tube Pitch. To calculate Number of Tubes in Center Row Given Bundle Diameter and Tube Pitch, you need Bundle Diameter (D_B) & Tube Pitch (P_Tube). With our tool, you need to enter the respective value for Bundle Diameter & Tube Pitch and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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