Composition including refrigerant, use thereof, refrigerator having same, and method for operating said refrigerator
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Solution Overview
Problem
Existing refrigerants like R410A have high global warming potential (GWP), necessitating the development of low-GWP alternatives for air conditioning systems.
Innovation Solution
A novel refrigerant composition comprising trans-1,2-difluoroethylene (HFO-1132(E)), 1,1-difluoroethylene (HFO-1132a), 2,3,3,3-tetrafluoro-1-propene (R1234yf), and difluoromethane (R32) is formulated within specific mass% ranges defined by a ternary composition diagram, offering a low-GWP alternative to R410A.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If refrigerant composition is optimized for low GWP, then environmental compliance is improved, but refrigeration performance may deteriorate
Solution Approach 1:
The patent optimizes multiple parameters simultaneously including compositional ratios, operating pressures, and temperature conditions to achieve both low GWP and high refrigeration performance. The specific formulation of HFO-1234ze(E) and HFO-1234yf in defined proportions represents this multi-parameter optimization
Solution Approach 2:
The patent employs dynamic control of refrigerant flow and system operating conditions to compensate for the unique thermodynamic properties of HFO-based refrigerants, ensuring optimal refrigeration performance is maintained despite the unconventional refrigerant composition
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The refrigerant achieves a refrigerating capacity of ≥ 85% relative to R410A with a temperature glide of ≤ 5°C, maintaining effective performance while reducing GWP.
Implementation Method 1
a first heat exchanger configured to function as an evaporator in which the refrigerant flows in an evaporating manner
Implementation Method 2
a second heat exchanger configured to function as a condenser in which the refrigerant flows in a condensing manner
Implementation Method 3
the refrigerant flows in an evaporating manner
Implementation Method 4
the refrigerant flows in a condensing manner
Data Source
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AI summary
Provided is a novel low-GWP mixed refrigerant. A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), 1,1-difluoroethylene (HFO-1132a), 2,3,3,3-tetrafluoro-1-propene (R1234yf), and difluoromethane (R32).