Refrigerant composition
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Solution Overview
Problem
Current refrigerants face challenges in achieving low global warming potential (GWP), non-flammability, and maintaining refrigerating capacity and coefficient of performance (COP) equivalent to traditional refrigerants like R-134a, R-410A, R-123, and R-404A, while also addressing flammability concerns.
Innovation Solution
A specific refrigerant composition comprising hexafluoropropylene (FO-1216) combined with hydrofluoroolefins, hydrofluorocarbons, and hydrofluoroethers, with specific mole percentages to achieve low GWP, non-flammability, and enhanced refrigerating capacity and COP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional refrigerants are used to maintain refrigerating capacity and COP, then refrigerating capacity and COP are maintained, but GWP and flammability issues arise
Solution Approach 1:
The patent adjusts the compositional parameters of the new refrigerant blend to match the thermodynamic performance of traditional refrigerants. By optimizing the ratio of HFO-1234ze(E), FO-1216, and HFC-134a within specified ranges, the formulation achieves equivalent refrigerating capacity and COP while eliminating GWP and flammability problems of conventional refrigerants.
Data Source
AI summary
Provided is a refrigerant composition that has a low GWP; is non-flammable or mildly flammable; and has a refrigerating capacity (Cap) and/or coefficient of performance (COP) equivalent to or higher than those of traditional refrigerants, such as R-134a, R-410A, R-123, or R-404A, when used as an alternative refrigerant for these traditional refrigerants. Specifically, provided is a refrigerant composition containing FO-1216 and a hydrofluoroolefin, wherein the hydrofluoroolefin is at least one member of HFO-1234ze and HFO-1243zf.