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Refrigeration technology core competitiveness in now?

by:Arkool     2020-03-24
< p> in the first place, some of the core equipment design and manufacturing, such as heat exchangers, electronic expansion valve, compressor, etc. , there are a lot of knowledge. It can be divided into electric components and thermodynamics components, such as heat exchanger and the capillary is thermodynamic components, such as the compressor and electronic expansion valve can replace the electric components ( Of course, closely related with thermal process also) 。 The former with thermodynamics and heat transfer fluid is closely related to the basic theory, and the mechanical structure and power electronic and electric components with control algorithm is more relevant < / p> < p> second, basic thermodynamics, thermodynamic process can be divided into new development and the development of new environmental protection refrigerant. Thermodynamic process fundamentally determines the maximum efficiency of a refrigeration cycle, of course, this also with refrigerant thermophysical properties are inseparable. For refrigerating agent research and development, the cooling of the thermal physical properties have significant influence on the system's performance, how to develop reasonable refrigerant according to specific requirements, is very important. At the same time, the development of the accurate equation of state in thermal and physical properties, the thermal physical properties are obtained is very important, but the work is boring < / p> < p> the third, the flow of the refrigerant heat transfer law research, especially under the condition of two phase flow. Not mixed working medium is pure of the two-phase circulating hot process is not fully understood, different enthalpy under the pressure and velocity, heat transfer and pressure drop performance may have significant differences. Mixed working medium is more complex. The existing relevant theory the thermal-hydraulic also is enough to engineering use. < / p> < p> 4, integrated optimization of cooling system and the development of reasonable control strategy. Now most of the refrigeration system of research and development, or the more traditional, according to the design parameters of thermodynamic system, the selection of key equipment or design, basically is successfully design between the various components, do not consider influence each other. But in fact, the system overall optimization design of the parts, may be it is a different story, but rarely heard so dry. As for the control system, for safety, high efficiency, high comfort level of the importance of need not I said. < / p> < p> 5, separately to air conditioning, the human body comfort research for the design of air conditioning, is very important! Ergonomics is not just a decoration. < / p> < p> < / p>
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