Heat Transfer Rate Calculator

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Heat transfer rate calculator

Heat transfer rate calculator made it easy to evaluate the rate of transferring heat from one object to another.

What is the heat transfer rate?

Heat transfer rate is also known as heat transfer rate density. It is the amount of heat energy transferred per unit of time from one object to another due to a temperature difference between them.

The heat transfer rate is measured in watts (W) or British Thermal Units per hour (BTU/hr).

Understanding conduction:

Conduction is one of the primary modes of heat transfer and occurs in solids when heat is transferred through direct physical contact between particles.

Exploring convection:

Convection is the process of heat transfer through the movement of fluids or gases. It involves the transfer of heat by the actual movement of the heated substance; such as air or water.


This phenomenon is the reason why we receive heat from the sun and why objects emit thermal radiation based on their temperature.

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