How does commercial refrigeration work? THE COOLING PROCESS

All refrigeration works via a principle called the Second Law of Thermodynamics. This principle states that when two objects of different temperatures come close together, heat will always travel from the warmer object to the colder one. As a result, commercial refrigeration systems utilize a refrigerant solution to transfer heat from the food inside the refrigeration unit’s storage area to the refrigerant.

Refrigerant solutions obey a second physical principle: gases cool as they expand and heat up as they compress. While cycling through the refrigeration system, the refrigerant is sent through a series of pressure changes to improve efficiency and speed. It removes heat from the refrigerated space to keep it cold.

THE REFRIGERANT

Refrigerant is the key to the success of modern commercial refrigeration systems. In the past, Freon was the most common refrigerant found in both air conditioning units and refrigerators. However, Freon was found to damage the Earth’s ozone layer, causing an increase in solar radiation reaching the planet’s surface and changes in the global climate.

Currently, Freon is out of use in the United States. Other refrigerants, such as tetrafluoroethane, are taking their place to improve the efficiency and eco-friendliness of modern refrigeration systems continually.

Today, the commercial refrigeration system has expanded to a massive industry. The chilling process can be high-temperature to get the environment to low-temperature freezing.

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