Refrigerant-containing composition, use thereof and refrigerator comprising same, and method for operating said refrigerator
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Solution Overview
Problem
Existing refrigerants like R410A have a high global warming potential (GWP) and there is a need for a refrigerant composition that maintains a coefficient of performance (COP) equivalent to R410A while having a significantly lower GWP.
Innovation Solution
A refrigerant composition comprising HFO-1132(E), HFO-1123, and R32, with a total mass percentage of at least 99.5%, within specific ternary composition ranges defined by line segments in a diagram, is used as a working fluid in refrigerating machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If R410A is used as a refrigerant, then the coefficient of performance (COP) is maintained at a high level, but the global warming potential (GWP) becomes excessively high (2088)
Solution Approach 1:
The patent changes the chemical composition parameters of the refrigerant by replacing R125 with HFO-1123 and HFO-1132(E). This substitution maintains the COP performance while significantly reducing GWP from 2088 to below 150, directly resolving the contradiction between performance and environmental impact
Solution Approach 2:
The patent creates a composite refrigerant mixture comprising HFO-1123, HFO-1132(E), and R32 in specific proportions. This composite composition achieves both high COP (equivalent to R410A) and low GWP (below 150), simultaneously satisfying both requirements that were in contradiction
2Object-affected harmful factors
If R32 is used to reduce GWP, then the global warming potential decreases (GWP of 675), but the coefficient of performance becomes insufficient compared to R410A
Solution Approach 1:
The patent merges R32 with HFO-1123 and HFO-1132(E) in specific ratios to create a composite refrigerant. This combination preserves the low GWP advantage of R32 while compensating for its insufficient COP through the complementary properties of HFO components, achieving both low GWP (below 150) and high COP (equivalent to R410A)
Solution Approach 2:
The patent optimizes the concentration parameters of each component (HFO-1123: 30-70 mass%, HFO-1132(E): 10-40 mass%, R32: 10-30 mass%) to achieve the optimal balance between low GWP and high COP, resolving the performance deficiency of pure R32
3Object-affected harmful factors
If alternative low-GWP refrigerants are used to replace R410A, then the global warming potential is reduced, but the coefficient of performance becomes equivalent to or lower than R410A
Solution Approach 1:
The patent precisely controls the compositional parameters within specific ranges to achieve both low GWP (below 150) and high COP (equivalent to R410A), overcoming the performance loss typically associated with alternative refrigerants
Solution Approach 2:
The patent develops a composite refrigerant system using HFO-1123, HFO-1132(E), and R32 that achieves superior dual performance: GWP below 150 and COP equivalent to R410A, outperforming other alternative refrigerants that sacrifice COP for lower GWP
Data Source
Figure 1~2
AI summary
Provided is a refrigerant composition having two types of performance, i.e., a coefficient of performance that is equivalent to that of R410A and a sufficiently low GWP. Provided is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32) at specific concentrations.