Which new refrigerant is better, r32 or r410A?

At present, environmentally-friendly refrigerants are widely used, and air-conditioning refrigerant models are constantly being upgraded. Which of the new refrigerants r32 or r410a is better in use? Many buyers have been troubled, so let me explain these two new environmentally-friendly refrigerants.

1. Refrigerant R32

R32 is the abbreviation of difluoromethane, which is a kind of coolant with zero ozone depletion potential, at room temperature It is a gas, a colorless and transparent liquid under its own pressure, easily soluble in oil, but hardly soluble in water. The boiling point is -52 degrees, the freezing point is -78.4 degrees, and the critical temperature is 59.5 degrees.

2. Refrigerant R410A

R410A is a new type of environmentally friendly refrigerant, does not destroy the ozone layer, and its working pressure is about 1.6 times that of ordinary R22 air conditioners. Cooling (warming) is more efficient. Improve air-conditioning performance without destroying the ozone layer.

The new R410A refrigerant is composed of two quasi-azeotropic mixtures, mainly composed of hydrogen, fluorine and carbon elements (expressed as hfc), which is stable and non-toxic. Features such as superior performance. At the same time, since it does not contain chlorine, it will not react with ozone, that is, it will not destroy the ozone layer. In addition, the performance of air conditioners using new refrigerants will also be improved to a certain extent. R410A is the most suitable refrigerant used to replace R22, which is recognized internationally so far, and it has been popularized in Europe, America, Japan and other countries.

3. Performance comparison between R32 and R410A:

1. Thermal properties: R32 charge can be reduced, which is only 0.71 times that of R410A, R32 The working pressure of the system is higher than that of R410A, but the maximum increase is not more than 2.6%, which is equivalent to the pressure requirement of R410A system. At the same time, the discharge temperature of R32 system is up to 35.3℃ higher than that of R410A. The existing compressor needs to be redesigned.

2. Environmental protection characteristics: ODP value (ozone depletion potential value) is 0, but R32 has moderate GWP value (global warming potential value), and the CO2 emission reduction ratio can reach 77.6% compared with R22 , While R410A is only 2.5%, which is significantly better than R410A in terms of CO2 emission reduction.

3. Safety: R32 and R410A are non-toxic, while R32 is flammable, but among several alternatives to R22, R32, R290, R161, and R1234YF, R32 has the highest lower combustion limit (LFL) , The least combustible, relatively safe.

4. Cycle performance: In terms of theoretical cycle performance, the cooling capacity of the R32 system is 12.6% higher than that of R410A, the power consumption increases by 8.1%, and the comprehensive energy saving is 4.3%. The experimental results also show that the R32 refrigeration system is used The energy efficiency ratio is slightly higher than that of R410A.

R32 and R410A refrigerants are currently the main types of air-conditioning refrigerants. Of course, which new refrigerant is better, r32 or r410A? In fact, each has its own advantages and disadvantages, so when purchasing air-conditioning refrigerants, they must be purchased according to the model noted on the air-conditioner to avoid affecting the air-conditioning and refrigeration equipment. If the air conditioner is not cooling, for safety reasons, if not, you can ask a professional maintenance person to refill it.

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