Carbon Dioxide Refrigeration Cycle Of Transcritical To The Analysis And Study Of Micro-Chanel Gas Cooler

The primary reason for CFCs alternative is that they damage the ozone layer, no destructive type refrigerant for the ozone layer HFCs become important and alternative CFCs refrigerants. HFCs don't damage the ozone layer, but their chemical stability and post-release can accumulate, which eventually led to significant greenhouse effect. The phase-out of ozone depleting substances and greenhouse damage substances, natural refrigerants reconsidered have become an international responsibility.From transcritical carbon dioxide cycle theory proposed up to now only 10 years, it always has been the focus and hot of the qualitative study at home and abroad. Many theoretical and experimental studies have indicated that transcritical carbon dioxide refrigeration cycle is a very vast prospects .At the same time there are also some problems to be resolved. This paper about transcritical carbon dioxide cycle performance study, and the carbon dioxide gas cooler has been calculated research and simulation.First, the environmental protection and sustainable development base on a return to nature. Second, the need to protect the environment and the application of refrigerant environmental impact should not be overlooked. Out of the human environment protection, carbon dioxide should be re-opened as a new refrigerant. Based on new refrigeration and heat pump applications, the natural cycle of carbon dioxide refrigerant research and analysis transcritical carbon dioxide in the air-conditioning system are the real issues, including evaporator outlet temperature effects on system performance, cooler gas exit temperature effects on system performance, the maximum pressure on the high side effects on system performance, as well as two-stage compression refrigeration cycle performance. Optimization of gas cooler design, verification of the correctness of the model for transcritical carbon dioxide cycle in the application of air conditioning and supplying a theoretical basis. Improving the carbon dioxide cycle refrigeration performance coefficient, enhancing the competitiveness of the transcritical carbon dioxide circulatory system, promoting the practical application of the carbon dioxide refrigerant as a substitute for various environment harm refrigerants, and fundamentally solve the problem of the greenhouse effect and the destruction of the ozone layer. Finally, this paper introduces the main contents, purpose and significance.