About Mode of Heat Transfer

Hi,

This is conduction.

Just a small explanation. Convection is mainly when there is a movement of fluid over a stationary or another moving object. Here, there is no movement. So this is conduction

Conduction heat trasfer

It is Conduction.

Conduction is the movement of heat on a particle to particle level. Like how a spoon become hot when it is placed in a cup of hot coffee.

Convection is the heat transfer via a medium such as air or water.

See here for better explination.

Heat transfer to where? Unless you have this scheme in a vacum ther's also some convection heat transfer and unless you have it surrounded by totally reflective survace there will be some heat radiated. S.M.

In reality, you will have small amounts of all three, Convection, conduction and radiation. If running calculations for heat transfer it's most likely ok to assume conduction as the main method of heat transfer, however there will be small amounts of heat being transferred by convection and radiation. You don't necessarily need fluid/air movement from external sources to have convection, as the heat itself will cause the air to move. Just thought I'd try and complicate things a bit more...

Conduction is your primary source.

Is this homework transfer? From you to us?

Motors need convection or it will burn for that reason commonly have a fan or are open.Transformers are open or have some metalic sink to remove heat by convection (black painted adds radation).just very little power devices could trust in conduction.-

Modern industrial motors have a classification called TEFC, are totally enclosed fan cooled for fire reasons, and dust reasons and they have internal fans and external radiating fins over which air is blown to cool them. Other categories are

categories of motors

TEFC