Refrigerant R410A refrigerant and R32 performance contrast

is refrigerants in air conditioning system, through evaporation and condensation heat transfer of a substance. Known as refrigerant; Snow! Alternative refrigerants R410A in view of the current industry is widely applied and the circulation characteristics of refrigerant R32 theoretical analysis and experimental research, preliminary results showed that:

1, the thermal physical properties: R32 filling volume can be reduced, only for r410a 0. System working pressure is 71 times, R32 R410A is high, but less than 2. 6%, R410A system pressure requirements and at the same time R32 system exhaust temperature higher than R410A 35. 3 ℃, the existing compressor need to redesign;

2, environmental protection features: the ODP values ( Ozone-depleting ozeme depletion potential) Are 0, but R32 GWP value ( Global warming ozeme depletion potential) Moderate, compared with R22 CO2 emission reduction ratio of up to 77. Only 6%, while the R410A to 2. Is better than 5%, the CO2 emission R410A;

3, security: R32 and R410A are non-toxic, flammable and R32, but in several kinds of R22 alternative R32, R290, R161, R1234YF, R32 combustion limit LFL ( Fire floor) , not easy combustion, relative security;

4, loop performance: in terms of performance in theoretical cycle, the capacity is higher than R410A 12 R32 system. 6%, power consumption increases 8. 1%, comprehensive energy saving 4. 3%, the experimental results also show that the refrigeration system can effect comparing is slightly higher than R410A R32.

in the table below is part of the characteristics of two kinds of refrigerants contrast:

note: relative filling quantity and volumetric refrigerating capacity for R410A relative value 1.

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