PCM definition

Front

What does PCM stand for?

Back

Phase Change Materials: Materials that store thermal energy in latent form.

Front

What are Phase Change Materials used for?

Back

They are used in thermal energy storage systems, building materials, and temperature regulation applications.

Front

Define latent heat.

Back

Latent heat is the amount of heat energy required to change a substance from one phase to another without changing its temperature.

Front

What is the significance of the phase change in PCM?

Back

The phase change allows PCMs to absorb or release large amounts of energy, making them effective for thermal management.

Front

Give an example of a common PCM.

Back

Paraffin wax is a common PCM used in thermal energy storage.

Front

What is the difference between sensible heat and latent heat?

Back

Sensible heat is the heat exchanged by a substance that results in a temperature change, while latent heat is the heat exchanged during a phase change without a temperature change.

Front

How do PCMs contribute to energy efficiency?

Back

PCMs can reduce energy consumption by storing excess thermal energy and releasing it when needed, thus stabilizing temperature fluctuations.

Front

What are the two main types of phase change materials?

Back

Organic PCMs (like paraffin wax) and inorganic PCMs (like salt hydrates).

Front

What is the melting point in the context of PCMs?

Back

The melting point is the temperature at which a solid PCM transitions to a liquid, absorbing heat in the process.

Front

What is the freezing point in the context of PCMs?

Back

The freezing point is the temperature at which a liquid PCM transitions to a solid, releasing heat in the process.