Heat Transfer Fundamentals

Flashcards covering core concepts of heat transfer, steady state condition, rate of heat flow, and microscopic particle behavior from the lecture notes.

Heat Transfer

The exchange of energy from a hot body to a cold body when two bodies at two different temperatures ($T_1 \neq T_2$) are made to be in contact.

Particle Behavior in Conduction

The process where atoms or particles near a heat bath become thermally agitated and collide with neighboring atoms to transfer heat, while the average position of the mass does not change.

Steady State

A condition in an object where heat flows from one end to the other end at a continuous and constant rate.

Rate of Heat Flow

Denoted as $\frac{dQ}{dt}$, it represents the heat transferred per unit time, which remains constant across all sections in a steady state: $\left(\frac{dQ}{dt}\right)_A = \left(\frac{dQ}{dt}\right)_B = \left(\frac{dQ}{dt}\right)_C$.