R-600a vs. R-134a: Which Is The Higher Refrigerant?

r600 vs r134a

If the compressor is the center of the fridge, then its refrigerant fuel (AKA Freon) is its blood. These gases facilitate the warmth switch course of that fridges use to create a chilly atmosphere for our meals.

You are reading: R600 vs r134a | R-600a vs. R-134a: Which Is The Higher Refrigerant?

Within the Philippine fridge market, there are two sorts of refrigerants in use: R-600a and R-134a. Whereas these two gases have the identical perform, they’ve totally different traits that make one higher than the opposite in some facets.

To briefly put it: R-600a (Isobutane) has much less affect on the atmosphere and is usually extra environment friendly vs. the R-134a (Norflurane) fuel. Nonetheless, one of many drawbacks of the R-600a fuel is that it’s flammable and it may possibly trigger minor well being considerations when it escapes from the fridge.

On this article, I gives you a short overview of those refrigerants, and I can even provide you with a rationale on the R-600a vs R-134a debate.

How a fridge works

Fridges work by harnessing the ability of the evaporation course of to chill down their compartments. It does this by repeatedly evaporating and condensing a refrigerant fuel that runs by means of copper tubes contained in the fridge.

Because the liquid type of the refrigerant evaporates, it absorbs the warmth from its environment, and thus producing a cool atmosphere. Now that the refrigerant has turned to a fuel, it must be condensed again into its liquid kind to start out the method once more.

The catch-all time period for these refrigerant gases is “Freon”. Freon is definitely a model identify of the chemical Dichlorodifluoromethane R-12, which was essentially the most generally used refrigerant fuel again within the day.

Since Freon is a CFC (chlorofluorocarbons), it has been phased out in lieu of extra environment-friendly refrigerants due to its functionality to break the ozone layer.

Thus, the refrigerants R-600a and R-134a have been born.

R-600a vs. R-134a

This part would be the comparative evaluation between the 2 refrigerant gases. I’ll divide this into 4 sections: Eco-friendliness, cooling efficiency, well being considerations, and flammability.


As acknowledged earlier, the primary cause why the R-12 fuel was changed is because of its affect on the atmosphere. Therefore why we must always anticipate that each the R-600a and the R-134a gases to be extra environmentally-friendly in comparison with the R-12 fuel.

The eco-friendliness of Refrigerant gases are measure by two metrics: its World Warming Potential (GWP) and its Ozone Depletion Potential (ODP).

Because the United Nations Setting Programme (UNEP) explains it, the GWP is:

In the meantime, the UNEP additionally outlined the Ozone Depletion Potential as:

Listed below are the comparisons the GWP and the ODP of the three refrigerants:

Refrigerant World Warming Potential Ozone Depletion Potential
R-12 10,900 1.0
R-134a 1,430 0.0
R-600a 3 0.0

As you possibly can see, each R-600a and R-134a refrigerants are an unlimited enchancment in comparison with the R-12 fuel. Each shouldn’t have any potential to break the ozone layer. Nonetheless, the R-600a has a decrease international warming potential in comparison with the R-134a, therefore it wins this spherical.

Winner: R-600a. It has a decrease international warming potential in comparison with the R-134a refrigerant.

Cooling Efficiency and Effectivity

The cooling efficiency of those refrigerants are measured by their coefficient of efficiency (COP). The COP is the ratio of the warmth faraway from the fridge to energy enter wanted to do that job. The next COP means greater effectivity and thus decrease working prices.

Here’s a comparability of the COPs of those refrigerants:

Refrigerant Coefficient of Efficiency
R-12 5.35
R-134a 4.62
R-600a 5.12
Worldwide Journal of Analysis and Analytical Critiques (IJRAR)

As you possibly can see, the R-12 fuel has the best COP in comparison with the opposite two gases. Nonetheless, since it’s already phased out, the most effective different to that is the R-600a fuel which has nearly the identical COP because the R-12. In the meantime, the R-134a fuel has a COP of 4.62, which is decrease than the opposite two gases. Thus, R-600a is extra environment friendly than R-134a.

Source: findtobeauty.com

Additionally price noting is that the R-600a requires a shorter time to achieve -21°C (60 minutes) in comparison with the R-134a (135 minutes)[1].

Winner: R-600a. It has the next COP and might attain a decrease temperature in a shorter time period in comparison with the R-134a.

Well being Considerations

Refrigerant gases can leak given the appropriate circumstances. And these gases may cause opposed well being results when an individual is uncovered to it.

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) designated refrigerant gases into two courses of toxicity: decrease toxicity (Class A) and better toxicity (Class B). These two courses are additional subdivided into designations of 1 – 3 the place gases with a designation of A1 has a decrease toxicity in comparison with gases with a designation of A3.

Here’s a comparability between the R-134a vs. R-600a gases:

Refrigerant ASHRAE Toxicity Security Group Classification
R-12 A1 Low toxicity
R-134a A1 Low toxicity
R-600a A3 Low toxicity
American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)

As you possibly can see, whereas each gases are thought-about as having low-toxicity, the R-134a beats out the R-600a with its designation of A1 in comparison with the A3 of the latter.

Winner: R-134a. Whereas each of those gases are thought-about as non-toxic, the R-134a refrigerant can have much less opposed results in your well being in comparison with the R-600a fuel, therefore making it safer total.


The ASHRAE additionally designated these refrigerant fuel primarily based on their flammability. Right here is their designation scheme:

Class Designation
No Flame Propagation A1
Decrease Flammability A2L
Flammable A2
Greater Flammability A3

Now, right here is their designation of those refrigerants:

Refrigerant ASHRAE Toxicity Security Group Classification
R-134a A1 No Flame Propagation
R-600a A3 Extremely Flammable
American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)

As you possibly can see, the R-600a is taken into account as extremely flammable which makes it extra of a security concern versus the R-134a.

With that mentioned although, fridges use solely small quantities of R-600a fuel. Fridges want ~50g of this fuel to perform – 66% decrease than when utilizing R-134a [2]. This quantity gained’t pose that a lot hazard of your fridge blowing up or being engulfed in flames – it’s nonetheless flammable although.

Winner: R-134a. Not like the R-600a fuel, R-134a won’t catch on fireplace even whether it is uncovered to flames.


As we’ve mentioned, the R-600a is extra environment friendly and has much less environmental affect in comparison with the R-134a. Nonetheless, it’s disadvantage is that it’s flammable and its opposed well being results when it does leak out of your fridge.

With all of this mentioned, I personally suggest shopping for an R-600a refrigerant nonetheless. It’s cooling effectivity will prevent extra in the long term. Additionally, whereas it’s flammable, most fridges shouldn’t have sufficient of this fuel to precipitate a catastrophic explosion.

In actual fact, I’ve seen that lots of firms have already shifted from R-134a to R-600a. Often, R-600a has been used for no-frost fashions, whereas R-134a has been used for direct cooling fashions. However now, I’ve seen increasingly more direct cool fashions use R-600a, and it seems to be like it’s the present development.

When you have extra questions on what sort of fridge to purchase, we’ve printed a complete fridge shopping for information that can assist you in your shopping for journey.

Category: Hand And Foot Skin Care at https://findtobeauty.com.

Article post on: findtobeauty.com

Recommended For You

About the Author: Phuoc Toan