Method for producing hydraulic medium including difluoroethylene
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Solution Overview
Problem
Existing methods for producing working media containing difluoroethylene face challenges with self-decomposition and disproportionation reactions, which affect stability and global warming potential, particularly when the difluoroethylene content exceeds 65 mol %.
Innovation Solution
A method involving the mixing of a component with difluoroethylene at a ratio of more than 65 mol % with a second component without self-decomposition properties, under specific temperature and pressure conditions, to create a working medium with a difluoroethylene content of 65 mol % or less, using steps (A), (B), or (C), ensuring stability and low global warming potential.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If difluoroethylene content is increased to improve refrigeration performance, then cycle performance is improved, but self-decomposition and disproportionation reactions occur
Solution Approach 1:
The patent applies parameter changes by precisely controlling the difluoroethylene concentration to 65 mol% or less, along with controlling temperature and pressure parameters during storage and handling. This resolves the contradiction by finding the optimal parameter range that maintains both high refrigeration performance and chemical stability, preventing self-decomposition while maximizing productivity.
2Object-affected harmful factors
If difluoroethylene content is increased to reduce global warming potential, then environmental impact is reduced, but disproportionation reaction occurs
Solution Approach 1:
The patent resolves this contradiction by changing the concentration parameter to 65 mol% or less and controlling temperature and pressure parameters. This maintains the low global warming potential benefit of difluoroethylene while preventing the harmful disproportionation reaction through optimized parameter selection.
3Ease of manufacture
If mixing process is simplified to improve ease of manufacture, then manufacturing efficiency is improved, but temperature and pressure control precision is reduced
Solution Approach 1:
The patent applies partial action by implementing temperature and pressure control only at critical stages of the mixing process, rather than continuous control throughout. This resolves the contradiction by providing sufficient precision where needed while keeping the overall process simple and easy to manufacture.
Solution Approach 2:
The patent specifies particular temperature and pressure parameter ranges that optimize both the simplicity of the mixing process and the precision of control. By defining specific parameter windows, the patent achieves ease of manufacture without sacrificing necessary manufacturing precision.
Data Source
AI summary
Provided is a method for producing a working medium containing difluoroethylene, the difluoroethylene not having self-decomposition properties.A method for producing a working medium containing difluoroethylene.