Effective convection coefficient on outside Calculator

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Convection Coefficient

✖Convection coefficient outside tubes is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat .ⓘ Convection Coefficient Outside Tubes [ho]			+10% -10%
✖Fouling factor on outside represents the theoretical resistance to heat flow due to a build-up of a layer of dirt or other fouling substance on the tube surfaces of the heat exchanger.ⓘ Fouling Factor on Outside [hfo]			+10% -10%

✖Effective convection coefficient on outside as the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat.ⓘ Effective convection coefficient on outside [h_oe]

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Formula

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Effective convection coefficient on outside

Formula

`"h"_{"oe"} = ("ho"*"hfo")/("ho"+"hfo")`

Example

`"4.363636W/m²*K"=("16W/m²*K"*"6")/("16W/m²*K"+"6")`

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Effective convection coefficient on outside Solution

STEP 0: Pre-Calculation Summary

Formula Used

Effective convection coefficient on outside = (Convection Coefficient Outside Tubes*Fouling Factor on Outside)/(Convection Coefficient Outside Tubes+Fouling Factor on Outside)
h_oe = (ho*hfo)/(ho+hfo)
This formula uses 3 Variables

Variables Used

Effective convection coefficient on outside - (Measured in Watt per Square Meter per Kelvin) - Effective convection coefficient on outside as the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat.
Convection Coefficient Outside Tubes - (Measured in Watt per Square Meter per Kelvin) - Convection coefficient outside tubes is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat .
Fouling Factor on Outside - Fouling factor on outside represents the theoretical resistance to heat flow due to a build-up of a layer of dirt or other fouling substance on the tube surfaces of the heat exchanger.

STEP 1: Convert Input(s) to Base Unit

Convection Coefficient Outside Tubes: 16 Watt per Square Meter per Kelvin --> 16 Watt per Square Meter per Kelvin No Conversion Required
Fouling Factor on Outside: 6 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_oe = (ho*hfo)/(ho+hfo) --> (16*6)/(16+6)

Evaluating ... ...

h_oe = 4.36363636363636

STEP 3: Convert Result to Output's Unit

4.36363636363636 Watt per Square Meter per Kelvin --> No Conversion Required

FINAL ANSWER

4.36363636363636 ≈ 4.363636 Watt per Square Meter per Kelvin <-- Effective convection coefficient on outside

(Calculation completed in 00.004 seconds)

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Created by Nishan Poojary

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

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< 10+ Convection Coefficient Calculators

Bare area over fin leaving fin base given convection coefficient

Go Bare Area = ((Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/(Effective convection coefficient on outside))-(Fin Efficiency*Surface Area)

Inner diameter of tube given convection coefficient

Go Inner Diameter = (((Fin Efficiency*Surface Area)+Bare Area)*Effective convection coefficient on outside)/(Convection coefficient based on inside area*pi*Height of Crack)

Height of tube tank given convection coefficient

Go Height of Crack = (((Fin Efficiency*Surface Area)+Bare Area)*Effective convection coefficient on outside)/(pi*Convection coefficient based on inside area*Inner Diameter)

Surface area of fin given convection coefficient

Go Surface Area = (((Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/(Effective convection coefficient on outside))-Bare Area)/Fin Efficiency

Convection Coefficient based on Inside Area

Go Convection coefficient based on inside area = (((Fin Efficiency*Surface Area)+Bare Area)*Effective convection coefficient on outside)/(pi*Inner Diameter*Height of Crack)

Fin efficiency given convection coefficient

Go Fin Efficiency = (((Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/(Effective convection coefficient on outside))-Bare Area)/Surface Area

Effective convection coefficient on outside given convection coefficient

Go Effective convection coefficient on outside = (Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/((Fin Efficiency*Surface Area)+Bare Area)

Overall heat transfer coefficient given convection coefficient

Go Overall Heat Transfer Coefficient = (Convection coefficient based on inside area*Effective Convection Coefficient on inside)/(Convection coefficient based on inside area+Effective Convection Coefficient on inside)

Effective convection coefficient on outside

Go Effective convection coefficient on outside = (Convection Coefficient Outside Tubes*Fouling Factor on Outside)/(Convection Coefficient Outside Tubes+Fouling Factor on Outside)

Effective convection coefficient on inside

Go Effective Convection Coefficient on inside = (Convection Coefficient inside Tubes*Fouling factor on inside)/(Convection Coefficient inside Tubes+Fouling factor on inside)

Effective convection coefficient on outside Formula

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 Effective convection coefficient on outside?

Effective convection coefficient on outside calculator uses Effective convection coefficient on outside = (Convection Coefficient Outside Tubes*Fouling Factor on Outside)/(Convection Coefficient Outside Tubes+Fouling Factor on Outside) to calculate the Effective convection coefficient on outside, The Effective convection coefficient on outside formula is defined as convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid. Effective convection coefficient on outside is denoted by h_oe symbol.

How to calculate Effective convection coefficient on outside using this online calculator? To use this online calculator for Effective convection coefficient on outside, enter Convection Coefficient Outside Tubes (ho) & Fouling Factor on Outside (hfo) and hit the calculate button. Here is how the Effective convection coefficient on outside calculation can be explained with given input values -> 4.363636 = (16*6)/(16+6).

FAQ

What is Effective convection coefficient on outside?

The Effective convection coefficient on outside formula is defined as convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid and is represented as h_oe = (ho*hfo)/(ho+hfo) or Effective convection coefficient on outside = (Convection Coefficient Outside Tubes*Fouling Factor on Outside)/(Convection Coefficient Outside Tubes+Fouling Factor on Outside). Convection coefficient outside tubes is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat & Fouling factor on outside represents the theoretical resistance to heat flow due to a build-up of a layer of dirt or other fouling substance on the tube surfaces of the heat exchanger.

How to calculate Effective convection coefficient on outside?

The Effective convection coefficient on outside formula is defined as convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid is calculated using Effective convection coefficient on outside = (Convection Coefficient Outside Tubes*Fouling Factor on Outside)/(Convection Coefficient Outside Tubes+Fouling Factor on Outside). To calculate Effective convection coefficient on outside, you need Convection Coefficient Outside Tubes (ho) & Fouling Factor on Outside (hfo). With our tool, you need to enter the respective value for Convection Coefficient Outside Tubes & Fouling Factor on Outside 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 Effective convection coefficient on outside?

In this formula, Effective convection coefficient on outside uses Convection Coefficient Outside Tubes & Fouling Factor on Outside. We can use 1 other way(s) to calculate the same, which is/are as follows -

Effective convection coefficient on outside = (Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/((Fin Efficiency*Surface Area)+Bare Area)

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