R290 vs R600a

In this post, we will conduct a comparison between two types of compressors: one that operates with the refrigerant r600a, and another that uses R290.

Difference between R290 and R600a:

  • Let’s start by saying that the units incorporating the r600a compressor and R290 are generally used for lower cooling capacities. R600a is used in refrigeration and freezing and is not employed in air conditioning, while R290 is used in refrigeration, freezing, air conditioning, and even in heat pumps.
  • As these units typically possess lower refrigeration power, this allows for concentrating a lesser quantity of r600a and R290, thus compensating for their flammability.
  • Due to these flammability characteristics, it is especially recommended to use compressors with r600a and R290 in new equipment specifically designed for this type of gas.
  • In terms of the molecules of the refrigerants, R290, in its vapor state, is almost three times heavier than r600a.
  • This implies that, with a slight volume of gas passing through the compressor, several grams of R290 will be transported compared to the compressor with r600a.
  • Although R290 is slightly more potent in terms of cooling compared to r600a, the greater amount of grams passing through the R290 compressor is the aspect that makes the biggest difference between the two gases.
  • In contrast, r600a is less dense, resulting in a lower flow of grams through the compressor.
  • A compressor using r600a handles fewer grams of gas per unit volume compared to the R290 compressor. Thus, to equalize the R290 compressor, an increase in displacement is necessary. This is why the r600a compressor tends to be larger in terms of volume, compared to an R290 compressor with the same cooling capacity.
  • Regarding oil compatibility, both r600a and R290 are compatible with mineral oil, alkylbenzene, and polyolester oil (POE).
  • Compressors using r600a and R290 lead to different system designs due to the varying volumetric flows required for the same cooling needs.
  • The system using an R290 compressor is more efficient in terms of consumption compared to r600a for the same cooling capacity. In other words, R290 has a higher coefficient of performance (COP).
  • Regarding the temperature at the compressor outlet, it is observed that the discharge temperature of R290 is much lower than that of r600a, by about 17°C on average.
  • Both the r600a and R290 compressors can be charged in either liquid or vapor phase without issues.
  • The size of the capillary tube, for the same cooling capacity, is different for the r600a and R290 compressors.
  • The operating pressures of both compressors are completely different.

Why are the compressor with R600a and the R134a gas different?

In this post, we will compare two types of compressors: one that operates with R600a refrigerant and another that uses r134a.

https://youtu.be/jPKA6b259gI

Let’s begin by saying that the equipment incorporating the compressor with R600a is used in refrigeration and freezing applications, generally with lower cooling capacities. This allows concentrating a smaller amount of R600a and thus compensating for its flammability.

Due to these flammability characteristics, the use of R600a is especially recommended in new equipment designed specifically for this type of gas.

On the other hand, the compressor that works with r134a, being non-flammable, can be used in a variety of cooling capacities, only in refrigeration and freezing applications.

In terms of refrigerant molecules, r134a, in vapor state, is heavier than R600a.

This means that, with a slight volume step of gas passing through the compressor, several grams of R404a will be transported.

Although r134a is less efficient in terms of cooling compared to R600a, the greater amount of grams passing through the R404a compressor ensures proper cooling of the product.

In contrast, R600a is less dense, resulting in a lower flow of grams through the compressor. However, each gram of R600a has a higher cooling capacity, which compensates for its lower density.

A compressor using R600a handles fewer grams of gas compared to the r134a compressor, but each gram of R600a has a higher cooling capacity than a gram of r134a.

As for oil compatibility, R600a is compatible with mineral oil, alkylbenzene, and polyolester oil, POE, while the r134a compressor only uses POE oil.

The compressor system using R600a gas is more efficient in terms of consumption compared to r134a for the same cooling capacity.

The amount of refrigerant charge needed in grams with r134a to achieve the same cooling effect as R600a is much higher.

As for the temperature at the compressor outlet, it is observed that practically both discharge temperatures are equal.

Both the R600a compressor and the r134a compressor can be charged in both liquid and vapor phases without problems.

The size of the capillary tube for the same cooling capacity of the R600a and r134a compressors is completely different.

The working pressures of both compressors are totally different, with the R600a gas having very low values.

Compressor R404A Vs R600a

In this video, we will carry out a comparison between two types of compressors: one that operates with the refrigerant R600a, and another that uses R404A.

Let’s begin by saying that equipment incorporating the R600a compressor is used in refrigeration and freezing applications, generally with lower cooling capacities.

This allows for a lower amount of R600a to be concentrated, thus compensating for its flammability.

Due to these flammability characteristics, the use of R600a is especially recommended in new equipment specifically designed for this type of gas.

On the other hand, the compressor that operates with R404A, being non-flammable, can be used in a variety of cooling capacities, only in refrigeration and freezing applications.

In terms of the molecules of refrigerants, R404A, in a vapor state, is heavier than R600a.

This means that with a slight volume flow passing through the compressor, several grams of R404A will be transported.

Although R404A is less potent in terms of cooling compared to R600a, the greater quantity of grams passing through the R404A compressor ensures proper product cooling.

In contrast, R600a is less dense, resulting in a lower flow of grams through the compressor.

However, each gram of R600a possesses a higher cooling power, compensating for its lower density.

A compressor using R600a handles fewer grams of gas compared to the R404A compressor, but each gram of R600a possesses a higher cooling power than a gram of R404A.

Regarding oil compatibility, R600a is compatible with mineral oil, alkylbenzene, and polyolester oil, POE, while the R404A compressor only uses POE oil.

The compressor system using R600a gas is more efficient in terms of consumption compared to R404A, for the same cooling capacity. The amount of refrigerant charge needed in grams with R404A to achieve the same cooling effect as R600a is much higher.

As for the temperature at the compressor outlet, a slightly lower temperature is observed in the R404A compressor compared to the R600a compressor.

This is beneficial for the longevity of the R404A compressor. However, as seen in the graph, the discharge temperature of R600a is also low.

The R600a compressor can be charged in both liquid and vapor phases without issues, while the R404A compressor must be charged in liquid phase.

What are the differences between the compressor with R290 and the compressors using R404A gas?

In this article, we will perform a comparison between two types of compressors: one that operates with R290 refrigerant and another that uses R404A.

https://youtu.be/x3nSbDl2e_E

Let’s start by highlighting that equipment incorporating the R290 compressor is used in refrigeration, freezing, and air conditioning applications, generally with lower cooling capacities. This allows for a smaller amount of R290 to be concentrated, thereby compensating for its flammability.

Due to these flammability characteristics, the use of R290 is particularly recommended in new equipment designed specifically for this type of gas.

On the other hand, the compressor that works with R404A, being non-flammable, can be used in a variety of cooling capacities, but in refrigeration and freezing applications, and not in air conditioning.

In terms of refrigerant molecules, R404A, in vapor state, is heavier than R290. This means that with a slight volume of gas passing through the compressor, several grams of R404A will be transported.

Although R404A is less efficient in terms of cooling compared to R290, the larger amount of grams passing through the R404A compressor ensures proper cooling of the product.

In contrast, R290 is less dense, resulting in a lower flow of grams through the compressor. However, each gram of R290 has a higher cooling capacity, compensating for its lower density.

A compressor using R290 handles fewer grams of gas compared to the R404A compressor, but each gram of R290 has a greater cooling capacity than a gram of R404A.

Regarding oil compatibility, R290 is compatible with mineral oil, alkylbenzene, and polyolester oil (POE), while the R404A compressor only uses POE oil.

The compressor system using R290 gas is more efficient in terms of consumption compared to R404A for the same cooling capacity. The amount of R404A refrigerant needed in grams to achieve the same cooling effect as R290 is higher.

As for the temperature at the compressor outlet, it is slightly lower in the R404A compressor compared to the R290 compressor. This is beneficial for the durability of the R404A compressor; however, as we observe in the graph, the discharge temperature of R290 is also low.

The R290 compressor can be charged in both liquid and vapor phases without issues, while the R404A compressor must be charged in the liquid phase.

Compressor R290 VS R22

On this webpage, we’ll be conducting a comparison between a compressor operating with R290 and a compressor functioning with R22.

https://youtu.be/IV6PyV5FIYE

Let’s start by highlighting that units equipped with an R290 compressor are employed in refrigeration, freezing, and air conditioning applications, typically with low capacity. This design concentrates a small quantity of R290 to mitigate its flammability.

Additionally, due to these flammability conditions, using R290 is particularly recommended in new equipment specifically designed for this gas.

On the contrary, the R22-operated compressor, due to its non-flammable properties, can be used at various cooling capacities and in refrigeration, freezing, and air conditioning applications.

The R22 molecule, in a vapor state, is heavier compared to R290. Consequently, a slight increase in the gas volume passing through the compressor results in the transportation of several grams of R22.

Despite R22 being less efficient in cooling when compared to R290, the greater volume of grams moving through the compressor provides sufficient cooling for the product.

In contrast, R290 is less dense, resulting in a lower flow of R290 grams through the compressor. Nevertheless, each gram of R290 boasts greater cooling power, compensating for its lower density.

While an R290 compressor handles fewer grams of this gas, each of these grams possesses more significant cooling power than a gram of R22.

The R290 compressor boasts approximately 90% of the volumetric capacity of the R22 compressor.

R290 is compatible with mineral oil, alkylbenzene, and polyolester oil (POE), while R22 is predominantly used with alkylbenzene and mineral oil.

A system equipped with an R290 gas compressor is more power-efficient compared to R22 for the same cooling capacity.

Approximately twice the amount of R22 in grams is required to achieve the same cooling effect as R290.

When R290 is employed, the temperature at the compressor outlet is notably lower in contrast to the temperature produced when using R22.

Both the R290 compressor and the R22 compressor can be charged in liquid phase or vapor without any issues.

Although R290 and R22 pressures are not identical, they are quite similar. This enables the compressor to accommodate variations in suction and compression when transitioning between the two refrigerants.

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