Chemical properties of propylene refrigerants
R1270 is refrigerant, possesses the advantages of large capacity, high COP. Environmental performance, Ozone depletion ozeme depletion potential is 0, the greenhouse effect ozeme depletion potential low) And the basic thermal physical properties is better ( Unit mass refrigerating capacity and unit volume refrigerating capacity is greater than the R22, exhaust temperature lower than that of R22, gasification of latent heat and thermal conductivity were greater than R22) And some basic thermophysical properties ( Saturated vapor pressure) Close to R22. With excellent thermodynamic properties and good cycle performance, R22 is extremely has the potential to substitute pure mass. Under the same conditions, R1270 refrigerating capacity and R22 system basic same, compared with R22 refrigeration system, R1270 can effect comparing to improve 6. Dropped 51% 5%, the filling amount, compression ratio by 27%. On the premise of meet the refrigerating capacity, by optimizing the evaporator, the evaporator pipe diameter from 7 mm to 5 mm, and decreases the number of the u-shaped tube changed many decorate, only change the evaporator R1270 prototype experiment, the results show that R1270 refrigerating capacity and R22 system basic same, R1270 refrigeration system can effect comparing to 3. 31, compared with R22 refrigeration system, can effect comparing 12. 6%, filling volume fell by 55%.
the properties of liquid propylene list as follows:
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