Refrigeration: Heat Transfer Concepts

Front

What is the purpose of Refrigeration?

Back

To move heat.

Front

Which of the following statements is false regarding heat energy?

Back

Heat can be created.

Front

Fill in the blank: Refrigerant _ heat better than water.

Back

absorbs.

Front

Fill in the blank: Refrigerant is a better medium because it _&_ at temperatures much lower than water.

Back

boils & condenses.

Front

Which direction will the heat flow while this person holds a hot cup of tea?

Back

From the cup to her hand.

Front

Define Refrigeration.

Back

Refrigeration is the process of removing heat from a designated area to lower its temperature.

Front

What is a refrigerant?

Back

A refrigerant is a substance used in a heat pump or refrigeration cycle that absorbs and releases heat.

Front

Explain the concept of heat transfer.

Back

Heat transfer is the movement of thermal energy from one object or substance to another.

Front

What are the three modes of heat transfer?

Back

Conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of heat through a solid material without any movement of the material itself.