| 1. | Comparing this cycle with the evaporation compression refrigerating cycle , the new cycle has more high coefficient of performance ( cop ) under the same condition
该循环与现在冰箱中所采用的蒸气压缩式制冷循环相比较，在条件相同的情况下具有较高的性能系数。 |
| 2. | The working performances of the refrigerator were presented . it was concluded that the performances of unit tube were excellent , average refrigerating capacity was 66 . 4w and coefficient of performance was 0 . 2
通过对单元管实际运行试验表明该单元管具有良好的制冷性能，平均制冷功率达66 . 4w ，性能系数达到0 . 2 。 |
| 3. | On the basis of these results , the optimal operating temperature of the solar collector and the maximum overall coefficient of performance ( cop ) of the cooling modes of the system are derived
又在此基础上，结合太阳能集热器作为系统的热源，对整个系统的最优综合性能进行分析，得出了最优集热器的运行温度以及在该温度下的系统最优综合效率性能系数。 |
| 4. | It leads to the coefficient of performance and exergy efficiency increased . application of this technology to shipping cold store can reduce energy consumption effectively and achieve satisfactory economic and social benefits
所以把这项技术综合应用于船舶冷库系统中，可以有效地降低系统运行的能耗，达到了节能的目的，取得良好的经济效益和社会效益。 |
| 5. | Because the improvement of coefficient of performance of the gehp mainly due to the use of waste heat from surroundings , we suggest that we should use energy grade theory to evaluate the performance of heat pump
由于能级平衡理论分析考虑了(火无)的作用，而热泵供暖时其性能系数的提高主要是利用了环境热量，所以建议采用能级平衡理论来分析评价热泵的性能。 |
| 6. | Using numerical simulation method , detailed dynamic pressure variations , transient gas temperature and mass flow rate in the ptr , and the coefficient of performance of ptr and the exergy losses of all parts of ptr were obtained
用数值模拟方法得到了制冷机内部各点的压力、温度、质量流率等参数的瞬时变化情况及整机的制冷系数，并得到了制冷机各部件的（火用）损失及整机的（火用）效率。 |
| 7. | To expand the usage of the system models , the dynamic characteristics between the hfc refrigerant and hcfc refrigerant in the existing system is simulated . the comparison shows that r407c refrigerant is available in the existing equipment , but has lower coefficient of performance
R407c和r22工质系统的对比仿真研究表明，前者可以作为后者的替代工质在现有系统上使用，但性能系数略有降低。 |
| 8. | Two main categories of ground - source heat pumps ( horizontal and vertical ) are analyzed technically and economically . monthly heating / cooling capacities and coefficients of performance for air - source and vertical and horizontal ground - source systems are calculated
以地源热泵空调系统为研究对象，从技术和经济性两方面对两种地源热泵(水平埋管、垂直埋管)与常规空气源热泵空调系统进行了分析和比较。 |
| 9. | A rig was designed on the basis of thermodynamic analysis . some factors , including mixture composition , cycle compression ratio and suction ratio of circumfluence fluid of the rectifying column , are analyzed of their impacts on coefficient of performance
在对新循环进行了热力学分析的基础上，设计了自动复叠制冷循环实验台，分析了循环工质配比、循环压比及精馏柱回流液的抽取率对循环系统cop的影响。 |
| 10. | It is found that for the ptr studied the coefficient of performance of the double inlet type can be improved from 0 . 091 to 0 . 108 and from 25 . 04 % to 29 . 95 % for the corresponding exergy efficiency compared with the orifice type
计算结果表明：针对所研究的脉管制冷机从小孔型到双向进气型的改进使得制冷机的制冷系数从0 . 091提高到了0 . 108 ， （火用）效率从25 . 04 %提高到了29 . 95 % ；回热器和小孔阀是制冷机中产生（火用）损失的主要部件。 |
