Tube inside area required for heat exchange Calculator

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Heat exchanger

Basics of HMT

Conduction

Convection

Convective Mass Transfer

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Transverse Fin Heat Exchanger

Effectiveness

NTU Relations

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Convection Coefficient

✖Heat Flow Rate is the amount of heat that is transferred per unit of time in some material, usually measured in watt. Heat is the flow of thermal energy driven by thermal non-equilibrium.ⓘ Heat Flow Rate [Q]			+10% -10%
✖Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid.ⓘ Overall Heat Transfer Coefficient [U_overall]			+10% -10%
✖Logarithmic Mean Temperature Difference is the log of the mean of the temperature values.ⓘ Logarithmic Mean Temperature Difference [ΔT_m]			+10% -10%

✖The area is the amount of two-dimensional space taken up by an object.ⓘ Tube inside area required for heat exchange [A]

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Formula

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Tube inside area required for heat exchange

Formula

`"A" = "Q"/("U"_{"overall"}*"ΔT"_{"m"})`

Example

`"16.66667m²"="125W"/("0.25W/m²*K"*"30")`

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Tube inside area required for heat exchange Solution

STEP 0: Pre-Calculation Summary

Formula Used

Area = Heat Flow Rate/(Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference)
A = Q/(U_overall*ΔT_m)
This formula uses 4 Variables

Variables Used

Area - (Measured in Square Meter) - The area is the amount of two-dimensional space taken up by an object.
Heat Flow Rate - (Measured in Watt) - Heat Flow Rate is the amount of heat that is transferred per unit of time in some material, usually measured in watt. Heat is the flow of thermal energy driven by thermal non-equilibrium.
Overall Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid.
Logarithmic Mean Temperature Difference - Logarithmic Mean Temperature Difference is the log of the mean of the temperature values.

STEP 1: Convert Input(s) to Base Unit

Heat Flow Rate: 125 Watt --> 125 Watt No Conversion Required
Overall Heat Transfer Coefficient: 0.25 Watt per Square Meter per Kelvin --> 0.25 Watt per Square Meter per Kelvin No Conversion Required
Logarithmic Mean Temperature Difference: 30 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

A = Q/(U_overall*ΔT_m) --> 125/(0.25*30)

Evaluating ... ...

A = 16.6666666666667

STEP 3: Convert Result to Output's Unit

16.6666666666667 Square Meter --> No Conversion Required

FINAL ANSWER

16.6666666666667 ≈ 16.66667 Square Meter <-- Area

(Calculation completed in 00.004 seconds)

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Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

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< 25 Transverse Fin Heat Exchanger Calculators

Outer Diameter of Tube in Transverse Fin Heat Exchanger

Go Outer Diameter = Bare Area/(pi*(Height of Crack-Number of Fins*Thickness))

Bare Area over Fin leaving Fin Base

Go Bare Area = pi*Outer Diameter*(Height of Crack-Number of Fins*Thickness)

Number of tubes in transverse fin heat exchanger

Go Number of Tubes = Mass Flow Rate/(Mass Flux(g)*Distance between two Consequent Tubes*Height of Crack)

Mass flux given mass flowrate

Go Mass Flux(g) = Mass Flow Rate/(Number of Tubes*Distance between two Consequent Tubes*Height of Crack)

Mass flowrate given mass flux

Go Mass Flow Rate = Mass Flux(g)*Number of Tubes*Distance between two Consequent Tubes*Height of Crack

Distance between two consequent tubes in transverse fin heat exchanger

Go Distance between two Consequent Tubes = Mass Flow Rate/(Mass Flux(g)*Number of Tubes*Length)

Length of tube bank

Go Length = Mass Flow Rate/(Mass Flux(g)*Number of Tubes*Distance between two Consequent Tubes)

Number of fins in length L

Go Number of Fins = (2*Surface Area)/(pi*((Fin Diameter^2)-(Outer Diameter^2)))

Fin surface area

Go Surface Area = (pi/2)*Number of Fins*((Fin Diameter^2)-(Outer Diameter^2))

Tube inside area required for heat exchange

Go Area = Heat Flow Rate/(Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference)

Logarithmic mean of temperature difference

Go Logarithmic Mean Temperature Difference = Heat Flow Rate/(Area*Overall Heat Transfer Coefficient)

Perimeter given equivalent diameter

Go Perimeter = (2*(Surface Area+Bare Area))/(pi*Equivalent Diameter)

Overall heat transfer coefficient

Go Overall Heat Transfer Coefficient = Heat Flow Rate/(Area*Logarithmic Mean Temperature Difference)

Bare Area over Fin leaving Fin Base given Surface Area

Go Bare Area = ((pi*Equivalent Diameter*Perimeter)/2)-Surface Area

Fin surface area given equivalent diameter

Go Surface Area = ((pi*Equivalent Diameter*Perimeter)/2)-Bare Area

Equivalent diameter

Go Equivalent Diameter = 2*(Surface Area+Bare Area)/(pi*Perimeter)

Heat flow required

Go Heat Flow Rate = Area*Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference

Equivalent diameter of tube for transverse fin heat exchanger

Go Equivalent Diameter = (Reynolds Number(e)*Viscosity of Fluid)/(Mass Flux)

Viscosity of fluid flowing inside tube of transverse fin heat exchanger

Go Viscosity of Fluid = (Mass Flux*Equivalent Diameter)/Reynolds Number(e)

Mass flux of fluid in transverse fin heat exchanger

Go Mass Flux = (Reynolds Number(e)*Viscosity of Fluid)/Equivalent Diameter

Reynolds number in heat exchanger

Go Reynolds Number = (Mass Flux*Equivalent Diameter)/(Viscosity of Fluid)

Length of fin

Go Fin Length = (Perimeter-(2*Height of Crack))/((4*Number of Fins))

Height of tank tube given perimeter

Go Height of Crack = (Perimeter-(4*Number of Fins*Fin Length))/2

Number of fins given perimeter

Go Number of Fins = (Perimeter-2*Height of Crack)/(4*Fin Length)

Perimeter of tube

Go Perimeter = (4*Number of Fins*Fin Length)+2*Height of Crack

Tube inside area required for heat exchange Formula

Area = Heat Flow Rate/(Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference)
A = Q/(U_overall*ΔT_m)

What is Heat exchanger?

A heat exchanger is a system used to transfer heat between two or more fluids. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural-gas processing, and sewage treatment. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. Another example is the heat sink, which is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant.

How to Calculate Tube inside area required for heat exchange?

Tube inside area required for heat exchange calculator uses Area = Heat Flow Rate/(Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference) to calculate the Area, The Tube inside area required for heat exchange formula is defined as the area required inside the tube for effective heat exchange between the flowing fluid and the inside surface. Area is denoted by A symbol.

How to calculate Tube inside area required for heat exchange using this online calculator? To use this online calculator for Tube inside area required for heat exchange, enter Heat Flow Rate (Q), Overall Heat Transfer Coefficient (U_overall) & Logarithmic Mean Temperature Difference (ΔT_m) and hit the calculate button. Here is how the Tube inside area required for heat exchange calculation can be explained with given input values -> 16.66667 = 125/(0.25*30).

FAQ

What is Tube inside area required for heat exchange?

The Tube inside area required for heat exchange formula is defined as the area required inside the tube for effective heat exchange between the flowing fluid and the inside surface and is represented as A = Q/(U_overall*ΔT_m) or Area = Heat Flow Rate/(Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference). Heat Flow Rate is the amount of heat that is transferred per unit of time in some material, usually measured in watt. Heat is the flow of thermal energy driven by thermal non-equilibrium, Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid & Logarithmic Mean Temperature Difference is the log of the mean of the temperature values.

How to calculate Tube inside area required for heat exchange?

The Tube inside area required for heat exchange formula is defined as the area required inside the tube for effective heat exchange between the flowing fluid and the inside surface is calculated using Area = Heat Flow Rate/(Overall Heat Transfer Coefficient*Logarithmic Mean Temperature Difference). To calculate Tube inside area required for heat exchange, you need Heat Flow Rate (Q), Overall Heat Transfer Coefficient (U_overall) & Logarithmic Mean Temperature Difference (ΔT_m). With our tool, you need to enter the respective value for Heat Flow Rate, Overall Heat Transfer Coefficient & Logarithmic Mean Temperature Difference 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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