Which Gas is Used In The Refrigerators Nowadays?

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Have you ever been knocked by the curiosity of knowing the refrigerator gas? Then this is the right article for you.

We have everything about the refrigerants that are used in refrigerators.

The refrigerator gas is the most important, or we can say the refrigeration system’s mother component. Without the refrigerator gas, your freezer is nothing but merely a box.

Refrigerator gas

So, if you want to know something extra about refrigerator gas, how they work, and their importance, try to read the whole explanation.

Word Note

As we are not accustomed to the technical terms of refrigerators, here are some terms related to this article.

They will help you to avoid unnecessary confusion.

  • Refrigeration: The cooling process of a refrigerator.
  • Refrigerant: The most important thing to maintain the cooling process.
  • Expansion device: The pressure controlling unit of the refrigerant.
  • Evaporator coil:Where the refrigerant absorbs the heat from the food.
  • Compressor:Where the refrigerant is compressed into light air.
  • Condenser coil: The condenser coil releases the hot air outside the refrigerator.

This was a quick acquaintance with some of the terminologies. Now let us discuss the main topic.

What is The Refrigerator Gas?

Refrigerant gas, also known as refrigerant fluid, refrigerant, and coolant, is a vital part of refrigeration systems like the refrigerator and air conditioners. It maintains the refrigeration cycle and heat cycle.

The specialty of refrigerants or refrigerator gas is that they can change their form according to the need of the refrigeration system.

How Do They Work?

It works using its adaptability with the circumstances. When it goes through the evaporator coil, it turns into gas in the low pressure of the evaporator coil.

But when it travels through the compressor unit, it becomes a hot vapour or high-pressure gas unit.

While trekking through the condenser coil, it changes its form into a liquid state.

Therefore, the refrigerant has a high capacity of changing itself to keep the refrigerator cool.

How Does It Change Its Form In The Refrigerator?

Step One

When the refrigerant stays in the expansion device, it holds the form of liquid. The expansion device reduces the pressure of the refrigerant so that the lower temperature can change its form into gas.

Step Two

After the expansion device turns the refrigerant into a gas, it travels through the evaporator coil.

When it transports through the evaporator coil, it absorbs all heat from the food.

Step Three

After going through the evaporator coil, the refrigerant reaches the compressor. In the compressor the temperature of the refrigerant increases to high from low. 

This happens because it goes through pressurization.

Step Four

Now the hot air passes through the condenser coils. The condenser coils spread the hot air into the environment.

And the process of absorbing heat from food and releasing the heat into the environment goes on.

Thus the refrigerator keeps your foods and beverages fresh for several days.

Name of Some of The Common Refrigerants And Their Characteristics

Now we will discuss some of the most common refrigerant gases. You will also get an idea about their prominences.

Freon R-438A

  • This is an ozone-friendly gas. Therefore, not harmful to nature.
  • It is inflammable.

Tetrafluoroethane R-134a

  • Most commonly used refrigerant in present days because it is ozone friendly.
  • It has effective condensed properties.

Iso-Butane R600a

  • Excellent thermodynamic performance.
  • Common component in commercial and domestic refrigerators.
  • Less harmful for nature.

Chlorofluorocarbons R22

  • Harmful for the ozone layer.
  • Not that popular in the industry for its harmful effects.

Some Frequently Asked Questions (FAQs)

Most of us have some common doubts regarding the refrigerator gases. We have tried to pick them and answer them all.

Which is the most common refrigerant gas in India?

Tetrafluoroethane R-134a and Freon R-438A are the most commonly used gas in India. They have less harmful properties.

Therefore, they are harmless to the ozone layer. And as a result, they are more prevalent in India.

Are the refrigerants toxic?

Yes, they are. They are toxic to human bodies.

They can cause you a headache, difficulty in breathing, nausea, cough and so on. So try to keep it where you do not spend much of your time.

Do the refrigerants leak?

Not as such. But if you have accidentally made a whole in the freezer compartment, you can experience the refrigerant coming out.

This will make your freezer work no more.

What if the refrigerant gas is low?

If the refrigerant is low, you will no longer get the intact freshness in your food. It can also lead to an odorous refrigerator.

What is the lifespan of a refrigerator?

The approximate lifespan of a refrigerator is 12-15 years. After that, you may experience more power consumption, malfunctions, lower cooling power and so on.


By reading the whole account, we hope that you have got a clear idea about the importance of the refrigerant in your refrigerator. The refrigerants are prior to the cooling process of a fridge.

Some of the other refrigerants are R-134a, R22, R600a, and R-438A. Most of them have the thermodynamic capacity to produce efficient performance.


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