Experimental Performance of TJR02 as an Alternative Refrigerant to R22 in a Small-Scale Cold Storage

A refrigerant mixture TJR02 was developed and the comparison experiment was performed on a single- stage vapor compression refrigeration system originally designed for R22. Experimental results show that TJR02 can be directly used in the system without modifying the original system or changing lubricant. By replacing R22 with TJR02, cooling rate gets faster and at least 20% of energy is saved. The actual detection in the standard test-bed veri- fies the experimental results and indicates that the adoption of TJR02 leads to greater efficiency and wider application. And the lower the refrigeratory temperature is, the more obvious the energy saving effects will be.