Rate of Convective Heat Transfer Calculator

✖The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.ⓘ Heat Transfer Coefficient [h_transfer]			+10% -10%
✖Exposed Surface Area is defined as the area that is exposed to the heat flow.ⓘ Exposed Surface Area [A_Exposed]			+10% -10%
✖Surface Temperature is the temperature at or near a surface. Specifically, it may refer to as Surface air temperature, the temperature of the air near the surface of the earth.ⓘ Surface Temperature [T_w]			+10% -10%
✖Ambient Air Temperature is the temperature where the ramming process starts.ⓘ Ambient Air Temperature [T_a]			+10% -10%

✖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.ⓘ Rate of Convective Heat Transfer [q]

⎘ Copy

👎

Formula

✖

Rate of Convective Heat Transfer

Formula

`"q" = "h"_{"transfer"}*"A"_{"Exposed"}*("T"_{"w"}-"T"_{"a"})`

Example

`"732.6W"="13.2W/m²*K"*"11.1m²"*("305K"-"300K")`

Calculator

LaTeX

Reset

👍

Download Basics of Modes of Heat Transfer Formulas PDF PDF Image

Rate of Convective Heat Transfer Solution

STEP 0: Pre-Calculation Summary

Formula Used

Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature)
q = h_transfer*A_Exposed*(T_w-T_a)
This formula uses 5 Variables

Variables Used

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.
Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.
Exposed Surface Area - (Measured in Square Meter) - Exposed Surface Area is defined as the area that is exposed to the heat flow.
Surface Temperature - (Measured in Kelvin) - Surface Temperature is the temperature at or near a surface. Specifically, it may refer to as Surface air temperature, the temperature of the air near the surface of the earth.
Ambient Air Temperature - (Measured in Kelvin) - Ambient Air Temperature is the temperature where the ramming process starts.

STEP 1: Convert Input(s) to Base Unit

Heat Transfer Coefficient: 13.2 Watt per Square Meter per Kelvin --> 13.2 Watt per Square Meter per Kelvin No Conversion Required
Exposed Surface Area: 11.1 Square Meter --> 11.1 Square Meter No Conversion Required
Surface Temperature: 305 Kelvin --> 305 Kelvin No Conversion Required
Ambient Air Temperature: 300 Kelvin --> 300 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q = h_transfer*A_Exposed*(T_w-T_a) --> 13.2*11.1*(305-300)

Evaluating ... ...

q = 732.6

STEP 3: Convert Result to Output's Unit

732.6 Watt --> No Conversion Required

FINAL ANSWER

732.6 Watt <-- Heat Flow Rate

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Chemical Engineering » Heat Transfer » Modes of Heat Transfer » Basics of Modes of Heat Transfer » Rate of Convective Heat Transfer

Credits

Created by Ayush gupta

University School of Chemical Technology-USCT (GGSIPU), New Delhi

Ayush gupta has created this Calculator and 300+ more calculators!

Verified by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

Soupayan banerjee has verified this Calculator and 800+ more calculators!

< 13 Basics of Modes of Heat Transfer Calculators

Thermal Resistance of Spherical Wall

Go Thermal Resistance of Sphere Without Convection = (Radius of 2nd Concentric Sphere-Radius of 1st Concentric Sphere)/(4*pi*Thermal Conductivity*Radius of 1st Concentric Sphere*Radius of 2nd Concentric Sphere)

Radiation Thermal Resistance

Go Thermal Resistance = 1/(Emissivity*[Stefan-BoltZ]*Base Area*(Temperature of Surface 1+Temperature of Surface 2)*(((Temperature of Surface 1)^2)+((Temperature of Surface 2)^2)))

Radial Heat Flowing through Cylinder

Go Heat = Thermal Conductivity*2*pi*Temperature Difference*Length of Cylinder/(ln(Outer Radius of Cylinder/Inner Radius of Cylinder))

Heat Transfer through Plane Wall or Surface

Go Heat Flow Rate = -Thermal Conductivity*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface

Radiative Heat Transfer

Go Heat = [Stefan-BoltZ]*Body Surface Area*Geometric View Factor*(Temperature of Surface 1^4-Temperature of Surface 2^4)

Rate of Convective Heat Transfer

Go Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature)

Total Emissive Power of Radiating Body

Go Emissive Power per Unit Area = (Emissivity*(Effective Radiating Temperature)^4)*[Stefan-BoltZ]

Thermal Diffusivity

Go Thermal Diffusivity = Thermal Conductivity/(Density*Specific Heat Capacity)

Radiosity

Go Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds)

Thermal Resistance in Convection Heat Transfer

Go Thermal Resistance = 1/(Exposed Surface Area*Co-efficient of Convective Heat Transfer)

Overall Heat Transfer based on Thermal Resistance

Go Overall Heat Transfer = Overall Temperature Difference/Total Thermal Resistance

Temperature Difference using Thermal Analogy to Ohm's Law

Go Temperature Difference = Heat Flow Rate*Thermal Resistance

Ohm's Law

Go Voltage = Electric Current*Resistance

Rate of Convective Heat Transfer Formula

Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature)
q = h_transfer*A_Exposed*(T_w-T_a)

What is Heat Transfer?

Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes.

Define Thermal Conductivity & Factors affecting it?

Thermal conductivity is defined as the ability of a substance to conduct heat. Factors Affecting The Thermal Conductivity are: Moisture, Density of material, Pressure, Temperature & Structure of material.

How to Calculate Rate of Convective Heat Transfer?

Rate of Convective Heat Transfer calculator uses Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature) to calculate the Heat Flow Rate, The Rate of Convective Heat Transfer is the transfer of heat from one place to another due to the movement of fluid. It involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow). Heat Flow Rate is denoted by q symbol.

How to calculate Rate of Convective Heat Transfer using this online calculator? To use this online calculator for Rate of Convective Heat Transfer, enter Heat Transfer Coefficient (h_transfer), Exposed Surface Area (A_Exposed), Surface Temperature (T_w) & Ambient Air Temperature (T_a) and hit the calculate button. Here is how the Rate of Convective Heat Transfer calculation can be explained with given input values -> 732.6 = 13.2*11.1*(305-300).

FAQ

What is Rate of Convective Heat Transfer?

The Rate of Convective Heat Transfer is the transfer of heat from one place to another due to the movement of fluid. It involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow) and is represented as q = h_transfer*A_Exposed*(T_w-T_a) or Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature). The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place, Exposed Surface Area is defined as the area that is exposed to the heat flow, Surface Temperature is the temperature at or near a surface. Specifically, it may refer to as Surface air temperature, the temperature of the air near the surface of the earth & Ambient Air Temperature is the temperature where the ramming process starts.

How to calculate Rate of Convective Heat Transfer?

The Rate of Convective Heat Transfer is the transfer of heat from one place to another due to the movement of fluid. It involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow) is calculated using Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature). To calculate Rate of Convective Heat Transfer, you need Heat Transfer Coefficient (h_transfer), Exposed Surface Area (A_Exposed), Surface Temperature (T_w) & Ambient Air Temperature (T_a). With our tool, you need to enter the respective value for Heat Transfer Coefficient, Exposed Surface Area, Surface Temperature & Ambient Air Temperature 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 Heat Flow Rate?

In this formula, Heat Flow Rate uses Heat Transfer Coefficient, Exposed Surface Area, Surface Temperature & Ambient Air Temperature. We can use 1 other way(s) to calculate the same, which is/are as follows -

Heat Flow Rate = -Thermal Conductivity*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface

Home

FREE PDFs

🔍 Search