Which gas is used in a Refrigerator? Modern Refrigerators

Which gas is used in a Refrigerator? Modern Refrigerators

Have you ever wondered what keeps your Refrigerator’s atmosphere cool? Do you know anything about how a refrigerator can keep everything you want to preserve? If there isn’t, then you’re at the right spot.

In reality, it’s the refrigerant gas that is the one responsible for all of the work. If you are contemplating refrigerant gas, we will walk you through the various aspects of the similar.

What is Refrigerant Gas?

Refrigerant gasses are chemical gasses with a very low evaporation point and are condensed under pressure to help cool the air around it. The gasses go through a repeated condensation and evaporation process, which means that all the heat produced is absorbed, and the temperature inside the unit is cooled.

The 20th century saw the introduction of fluorocarbons, particularly chlorofluorocarbons, which were often utilized in refrigerators. However, they began to disappear mostly due to their effect on the ozone over time.

Are you interested in knowing which is the most efficient Refrigerator in India?

The History of Refrigerant Gasses used in Refrigerators:

In the early years of 1800 to 1920, only poisonous gasses were utilized in refrigerators. The gasses consisted of fluorine, chlorine, and carbons. But, around the year 1970, it was realized that these gasses could pose a danger to the environment.

As these gasses escape into the atmosphere, they undergo a chemical transformation caused by the UV rays from the sun. This causes the greenhouse effect as well as the depletion of ozone. After that, specific steps were implemented to identify refrigerant gasses that can solve this issue.

This is when refrigerant gasses like HCFC (a mix of chlorine, hydrogen, fluorine, and carbon) and HFC (a mixture of fluorine, hydrogen, and carbon) became apparent. HCFC gasses have a lower time to live when exposed to the atmosphere and consequently cause minimal damage to ozone depletion.

However, gasses such as HFC do not contain chlorine, which means they have no harmful effects on the subject of depletion of the ozone. In addition, this is the reason gasses like HCFC gasses and HFC gasses are gaining popularity and becoming increasingly popular as modern refrigerant gasses.

A quick look at the different gasses employed in the Refrigerator:

  • R22 Chlorofluorocarbons (CFC) – This gas was present in older refrigerators but was ozone-depleting and gradually eliminated. It’s not present in any modern refrigerator.
  • R438A Freon R438A Freon is used to substitute R22 gas because it’s not ozone-depleting. It is among the latest gasses to be used in refrigerators and is also located in many repair refrigerators which previously ran on R22 gas.
  • R600A IsoButane – it is a flammable gas that is commonly used in modern refrigerators of small sizes.
  • R134A Tetrafluoroethane is a gas that is visible in the current Refrigerator. Although it is not ozone-friendly, it is a powerful greenhouse gas and will likely be removed shortly. It is, however, the preferred option for the present situation.

The gasses used in the modern-day Refrigerator:

Due to advancements in technology, we live in a period that allows us to achieve an ideal balance between satisfying our requirements and protecting our surroundings. There have been numerous improvements in the quality of life of people that have contributed to improving the overall environmental conditions. One example of a visible improvement that occurs to the same degree is using more defined and effective refrigerant gasses.

The earlier gasses were very damaging to the environment because of their ozone depletion; the latest refrigerant gasses are carefully selected. They are designed to offer the needed support for the Refrigerator to function at its peak, ensuring that it is conserving the balance of nature.

What are the gasses currently being utilized in refrigerators of today?

Are you curious? Take a look at:

1). Chlorofluorocarbon:

R134A is another gas used in refrigerators at present. It is a pressure-sensitive liquid that expands in gas to absorb heat and reduce the temperature inside the refrigerator. The gas is then moved through the compressor to eliminate heat before being again compressed to make a liquid.

The use of chlorofluorocarbon for refrigerators started in the 1970s, and it is still possible to see a lot of brands using this gas refrigerant for their refrigerators.

2). Acrylonitrile:

You can find this powerful insulation inside some modern refrigerators that act as an ideal barrier between outside heat and the interior. It’s very simple and convenient to clean the insulator, making it an ideal option. The 19th century was the introduction of Acrylonitrile which is still observed.

Here is a selection of pertinent information about the efficient and well-known gasses used in refrigerators to deliver the expected performance. Since the introduction of each gas, the refrigerator’s functioning has improved, but it has also helped create the ideal balance between the environment and the refrigerator.

3). Tetrafluoroethane:

HFC-134a (1,1,1,2-tetrafluoroethane) is one of the commonly used refrigerant gasses you can find in almost all the present refrigerators. This HFC-134a (1,1,1,2-tetrafluoroethane) gas is condensed effectively to cool down the surroundings of the machine without causing the problem of ozone depletion.

This gas began in the first decade of the 1990s and is currently being used across all types of equipment and machines. It is easy to obtain and can also preserve the condition of depletion of ozone to the highest degree.

4). Polystyrene:

It is very popular insulation that can be used as internal padding inside refrigerators to keep the heat from the appliance. In addition, it is not as expensive and acts as a barrier that effectively separates the heat outside and the refrigerator inside.

This, in turn, increases the temperature inside the machine, which aids in providing efficient cooling. Polystyrene first came into use around the turn of the century as an alternative refrigerant.


Nishant Rajput is the CEO and the head author at top10productsindia.in. He recently returned from Melbourne, Australia, after studies. Nishant is an engineer and carries colossal enthusiasm for guiding the Indian public to invest money in the right products. He hires a paid team of experts for analyzing data and narrating comprehensive reviews & guides! Besides that, he's a martial artist, gym freak, guitarist, and singer.

This Post Has 2 Comments

  1. Vinita

    Hi.I hv read your article about refrigerator gas you have shared the various gases which are used.I will be glad if u can share some resarch on the harm of eating those refrigrated food.

    Waiting for reply

    1. Nishant

      Hi Vinita, thanks for your comment.

      Sure, we have taken your topic into consideration and will surely come up with a well-detailed guide on the side effects of eating refrigerated food.

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