| 1. | The discussion about vwv controlling strategies of the second - pump system
关于二次泵变水量系统控制方案的探讨 |
| 2. | Presents the significance in vwv operating of water loop heat pumps . with an example , proposes the configuration and control mode of water pumps of the vwv system
摘要阐述了水环热泵系统变水量运行的意义。结合工程实例，提出了变水量系统的水泵配置及控制方式。 |
| 3. | Applying network graph theory into the study of vwv system was given in this thesis , and a program simulating the operation of the chilled water system was written according to this method
本文还提出了用网络图论来研究变水量系统的思想，根据此思想编写了可以模拟冷水系统实际运行情况的程序。 |
| 4. | Furthermore , the problems of large flow and low temperature differential will be solved as a result of the pumps in the vwv system operating in the capacity and head which system actually requires
另外，由于变水量系统水泵按实际所需的流量和扬程运行，所以可以有效的解决大流量小温差的问题。 |
| 5. | Variable flow chilled water system ( vwv ) is an effective energy - saving measure , which has a smaller size of pipe and equipment than the normal ones for it has considered the dispersing rate of the load in the systems
空调变水量系统是一种有效的节能手段，并且由于它考虑了系统的同时使用率，系统管道及设备将比常规的小。 |
| 6. | From this paper , a new optimized method and its program in the designing chilled water system were presented , and a scheme to convert a constant flow system to variable flow system was also brought forward
通过本文的研究，提出了一种新的空调冷水系统最优化设计方法，并编制了计算软件；提出了将定水量系统改造为变水量系统的方案。 |
| 7. | To solve the problems in the design and operation of constant flow chilled water system , the thesis suggested that the chilled water system could be converted from constant flow to variable flow . in this thesis , the possibility of the conversion , the characteristics of vwv system and the optimized method in the designing of chilled water system were deeply studied
针对定水量系统设计及运行中常出现的问题，本文提出了将定水量系统改造为变水量系统的课题，研究了定水量系统改造为变水量系统的可行性，分析了变水量系统的特性，同时对空调冷水系统的优化设计方法进行了深入研究。 |
| 8. | The results show that it is possible to convert the present constant system to variable system technologically . as the reason of the high fist - cost , the economic analysis should be made seriously before the conversion . the larger of the system and load change , the more benefits from the conversion will be gotten and the fewer return years will be required
研究表明，将我国目前运行的定水量系统改造为变水量系统在技术上是可行的，但一次投资较大，因此改造前应该进行认真的经济分析，系统越大，负荷变化越大，改造为变水量系统所获得的收益也越大，回收年也就越小。 |
| 9. | In the paper the potential of energy saving by thermal control and heat metering is analyzed , the indoor heating system schemes suited to heat metering and controlling schemes of outdoor heating hydraulic system are put forward and the changes of operating performance parameters for new indoor heating system after installation of radiator thermostatic valves are studies
分析了住宅供热采暖系统采用温控和按热量计费技术的节能潜力，提出了适合我国国情的具有按热量计量功能的住宅室内采暖系统方案和室外供热管网水系统变水量控制方案。 |
| 10. | Using the program , the thesis studied the status of the chilled water distribution in the system when operating in the practical conditions , and analyzed the performance of the system when adopting different controlling methods of pumps and the chilled water flow in the ahus ( air handling unit ) during the course of converting the constant chilled water flow system to variable chilled water flow system
利用所编写的程序研究了冷水系统实时工况下运行时，冷水系统内水量的实际分布情况；分析了定水量系统改造为变水量系统时，采用不同的水泵控制方案及末端采用不同的水量控制方法时的系统性能。 |
