Effective convection coefficient on outside given convection coefficient Calculator

✖Convection coefficient based on inside area is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat.ⓘ Convection coefficient based on inside area [h_ia]			+10% -10%
✖The Inner Diameter is the diameter of inner circle of circular hollow shaft.ⓘ Inner Diameter [d_i]			+10% -10%
✖Height of Crack is the size of a flaw or crack in a material that can lead to catastrophic failure under a given stress.ⓘ Height of Crack [h_c]			+10% -10%
✖Fin Efficiency is defined as the ratio of heat dissipation by the fin to the heat dissipation takes place if the whole surface area of the fin is at the base temperature.ⓘ Fin Efficiency [η]			+10% -10%
✖Surface Area of a three-dimensional shape is the sum of all of the surface areas of each of the sides.ⓘ Surface Area [A_s]			+10% -10%
✖Bare area of fin over the fin leaving fin base.ⓘ Bare Area [AB]			+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 given convection coefficient [h_oe]

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Effective convection coefficient on outside given convection coefficient Solution

STEP 0: Pre-Calculation Summary

Formula Used

Effective convection coefficient on outside = (Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/((Fin Efficiency*Surface Area)+Bare Area)
h_oe = (h_ia*pi*d_i*h_c)/((η*A_s)+AB)
This formula uses 1 Constants, 7 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

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 based on inside area - (Measured in Watt per Square Meter per Kelvin) - Convection coefficient based on inside area is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat.
Inner Diameter - (Measured in Meter) - The Inner Diameter is the diameter of inner circle of circular hollow shaft.
Height of Crack - (Measured in Meter) - Height of Crack is the size of a flaw or crack in a material that can lead to catastrophic failure under a given stress.
Fin Efficiency - Fin Efficiency is defined as the ratio of heat dissipation by the fin to the heat dissipation takes place if the whole surface area of the fin is at the base temperature.
Surface Area - (Measured in Square Meter) - Surface Area of a three-dimensional shape is the sum of all of the surface areas of each of the sides.
Bare Area - (Measured in Square Meter) - Bare area of fin over the fin leaving fin base.

STEP 1: Convert Input(s) to Base Unit

Convection coefficient based on inside area: 2 Watt per Square Meter per Kelvin --> 2 Watt per Square Meter per Kelvin No Conversion Required
Inner Diameter: 35 Meter --> 35 Meter No Conversion Required
Height of Crack: 12000 Millimeter --> 12 Meter (Check conversion here)
Fin Efficiency: 0.54 --> No Conversion Required
Surface Area: 0.52 Square Meter --> 0.52 Square Meter No Conversion Required
Bare Area: 0.32 Square Meter --> 0.32 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_oe = (h_ia*pi*d_i*h_c)/((η*A_s)+AB) --> (2*pi*35*12)/((0.54*0.52)+0.32)

Evaluating ... ...

h_oe = 4392.37321740251

STEP 3: Convert Result to Output's Unit

4392.37321740251 Watt per Square Meter per Kelvin --> No Conversion Required

FINAL ANSWER

4392.37321740251 ≈ 4392.373 Watt per Square Meter per Kelvin <-- Effective convection coefficient on outside

(Calculation completed in 00.008 seconds)

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Home » Physics » Heat and Mass Transfer » Heat Exchanger » Transverse Fin Heat Exchanger » Mechanical » Convection Coefficient » Effective convection coefficient on outside given convection coefficient

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Created by Nishan Poojary

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

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< Convection Coefficient Calculators

Inner diameter of tube given convection coefficient

LaTeX 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

LaTeX 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

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

Overall heat transfer coefficient given convection coefficient

LaTeX 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 given convection coefficient Formula

LaTeX Go

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 given convection coefficient?

Effective convection coefficient on outside given convection coefficient calculator uses Effective convection coefficient on outside = (Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/((Fin Efficiency*Surface Area)+Bare Area) to calculate the Effective convection coefficient on outside, The Effective convection coefficient on outside given convection coefficient formula is defined as the rate of heat transfer between a solid surface and a fluid per unit surface area per unit temperature difference. Effective convection coefficient on outside is denoted by h_oe symbol.

How to calculate Effective convection coefficient on outside given convection coefficient using this online calculator? To use this online calculator for Effective convection coefficient on outside given convection coefficient, enter Convection coefficient based on inside area (h_ia), Inner Diameter (d_i), Height of Crack (h_c), Fin Efficiency (η), Surface Area (A_s) & Bare Area (AB) and hit the calculate button. Here is how the Effective convection coefficient on outside given convection coefficient calculation can be explained with given input values -> 4392.373 = (2*pi*35*12)/((0.54*0.52)+0.32).

FAQ

What is Effective convection coefficient on outside given convection coefficient?

The Effective convection coefficient on outside given convection coefficient formula is defined as the rate of heat transfer between a solid surface and a fluid per unit surface area per unit temperature difference and is represented as h_oe = (h_ia*pi*d_i*h_c)/((η*A_s)+AB) or Effective convection coefficient on outside = (Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/((Fin Efficiency*Surface Area)+Bare Area). Convection coefficient based on inside area is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat, The Inner Diameter is the diameter of inner circle of circular hollow shaft, Height of Crack is the size of a flaw or crack in a material that can lead to catastrophic failure under a given stress, Fin Efficiency is defined as the ratio of heat dissipation by the fin to the heat dissipation takes place if the whole surface area of the fin is at the base temperature, Surface Area of a three-dimensional shape is the sum of all of the surface areas of each of the sides & Bare area of fin over the fin leaving fin base.

How to calculate Effective convection coefficient on outside given convection coefficient?

The Effective convection coefficient on outside given convection coefficient formula is defined as the rate of heat transfer between a solid surface and a fluid per unit surface area per unit temperature difference is calculated using Effective convection coefficient on outside = (Convection coefficient based on inside area*pi*Inner Diameter*Height of Crack)/((Fin Efficiency*Surface Area)+Bare Area). To calculate Effective convection coefficient on outside given convection coefficient, you need Convection coefficient based on inside area (h_ia), Inner Diameter (d_i), Height of Crack (h_c), Fin Efficiency (η), Surface Area (A_s) & Bare Area (AB). With our tool, you need to enter the respective value for Convection coefficient based on inside area, Inner Diameter, Height of Crack, Fin Efficiency, Surface Area & Bare Area 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 based on inside area, Inner Diameter, Height of Crack, Fin Efficiency, Surface Area & Bare Area. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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