Mixed working medium containing fluoroethane and trifluoroethylene

Abstract

The invention discloses a mixed working medium containing fluoroethane and trifluoroethylene, and belongs to the field of power engineering and engineering thermophysics. The mixed working medium containing fluoroethane and trifluoroethylene comprises the first component trifluoroethylene and the second component fluoroethane, and other one or two compounds must be mixed into the first component trifluoroethylene and the second component fluoroethane. When a ternary mixture is formed, any one of pentafluoroethane, difluoromethane, trifluoroiodomethane and hexafluoropropylene needs to be added;when a quaternary mixture is formed, two of pentafluoroethane, difluoromethane, trifluoroiodomethane, hexafluoropropylene, propane and dimethyl ether need to be added, but any two of propane, dimethyl ether and difluoromethane are not added at the same time. Compared with R-404A, the greenhouse effect potential of the multi-component mixed working medium provided by the invention is greatly reduced. The condensation pressure of the mixed working medium is equivalent to that of the R-404A, and the mixed working medium has the technical advantage that main related systems or components of the current R-404A continue to be used. Compared with the R-404A, the mixed working medium has higher heat conduction capacity and lower flow resistance, and further optimization and improvement of a heatexchanger are facilitated. The refrigeration cycle performance coefficient of the mixed working medium is higher than that of the R-404A, and the energy-saving significance is achieved.

Description

technical field [0001] The invention belongs to the field of power engineering and engineering thermophysics, and relates to a multi-component mixed working medium containing monofluoroethane and trifluoroethylene, especially used as a refrigerant. Background technique [0002] The problem of global warming is becoming more and more severe, and the international community generally believes that it is closely related to human activities, especially greenhouse gas emissions. From the "Kyoto Protocol" signed in the early stage, it was proposed to limit the emission of carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons and perfluorocarbons; to the "Paris Agreement" signed in December 2015, which established the 2020 Afterwards, the international climate change mechanism arrangement with the goal of "nationally determined contributions" as the main body, all parties promised to control the increase in global average temperature below 2°C, and work to...

AI Technical Summary

Problems solved by technology

However, ammonia is toxic, flammable and explosive, and the tragic accident caused people to "talk about ammonia discoloration" for a time; while chlorodifluoromethane is destructive to the ozone layer and is being phased out in accordance with the "Montreal Protocol"

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