| 1. | The effect of the parameters of natural gas on the performance of mixed refrigerant cycle process
天然气参数对混合制冷剂液化天然气流程性能的影响分析 |
| 2. | The analyses of the characteristics of different types of refrigeration cycles using mixed refrigerant revealed the underlying thermodynamic relationship between them
通过对各种混合工质节流制冷机循环的特性分析，揭示了不同循环型式之间的内在热力学关系。 |
| 3. | At the temperature level of - 60 ? , verious experiments are conducted on the cycles of lhr , acr _ i , acr _ r , with two component mixed refrigerants . the results are consistent with that of the numerical optimization
在即温度位，对利用二元混合工质组元的mr 、 “凡i和北lr循环分别进行了实验优化研究。 |
| 4. | An optimizing method with constant pressure ratio is initially applied to the mixed refrigerant cycle . this method greatly simplifies the calculation of the cycle , and is helpful in numerical optimization of various cycles , especially in the complex cycles
本文首次采用混合工质制冷机循环的定运行压比优化方法，大大减少了循环的计算量，为各种混合工质制冷机循环，尤其是复杂循环的数值优化奠定了基础。 |
| 5. | At last , considering the environmental protection and reducing the cost , this paper processes a primary discussion on the question of using a kind of natural refrigerant r600a or some mixing refrigerant to replace the refrigerant r134a
最后，从环境保护和降低成本的角度出发，本文就sc6350空调系统采用天然工质r600a以及采用价格低、环保性能达标的混合工质mtl - 1替代目前使用的“绿色”制冷剂r134a进行了初步的探讨。 |
| 6. | When refrigeration in this temperature range is realized by using single stage refrigerator with mixed refrigerant , not only the structure of the refrigerator is simplified , thus the operation reliability of the refrigerator is increased , but also the refrigerator can operate with a higher thermodynamic efficiency than that of conventional ones
采用单级压缩的混合工质制冷机进行该温区的深度制冷，不但可以使制冷机的结构得到简化，提高制冷机运行的可靠性，而且还可以获得更高的热力学效率。 |
| 7. | An optimizing model of j - t refrigerator cycle with mixed refrigerant is proposed in this paper . discussions are made on the objective function , constrains and designing variables in the optimizing model , based on three practical and feasible optimizing principles suggested by this thesis . optimization for different refrigeration cycles has been conducted
首先本文建立了混合工质制冷机循环的优化模型，通过对优化模型中的目标函数、约束条件和设计变量三方面的讨论，得到了对混合工质制冷循环进行优化所遵循的三条较为合理和切实可行的优化原则。 |
| 8. | According to the working theory of the joule - thomson throttle coolers , the characteristics of mixed refrigerant and thermodynamic performance of a mixed - refrigerant j - t refrigeration cycle are analyzed systematically . the essence of improving thermodynamic efficiency of j - t coolers with mixed - refrigerant is revealed in - depth . 4
阐述了混合工质j - t节流制冷机的工作原理，研究单纯工质和混合物工质的节流效应，比较混合工质节流制冷机与纯工质节流制冷机分析方法上的一些不同，分析了采用混合工质提高节流制冷机热效率的机理； 4 |
| 9. | The aim of this study is to compare the thermodynamic characteristics of different j - t refrigerator cycles with mixed refrigerant in - 40 " c ~ - 120 " c temperature range and to find out the refrigerator type with high thermodynamic efficiency and high reliability , as well as the corresponding optimum composition of the refrigerant mixture
本文的研究目的就是通过理论和实验两方面深入的分析和比较各类混合工质节流制冷机循环在- 40 - 120温区的热力学性能，探求其中的内在规律，找到该温区内具有较高热力学效率和高可靠性的制冷机型式以及相应的最优混合工质成分。 |
