直膨式冰蓄冷空调关键技术研究
文献类型：学位论文
| ; | |
| 作者 | 杜艳利 |
| 学位类别 | 硕士 |
| 答辩日期 | 2007-06-06 |
| 授予单位 | 中国科学院广州能源研究所 |
| 授予地点 | 广州能源研究所 |
| 导师 | 冯自平 |
| 关键词 | 直膨式冰蓄冷空调 蓄冰过程 融冰过程 动态特性 传热特性 |
| 其他题名 | The experimental study of core technologies of direct evaporative internal-melt ice-storage system |
| 中文摘要 | With the development of society, the electricity consumed by air conditioning increases unceasingly. In some region, air conditioning electricity even achieved 30-40% of the power load consumption, even the electricity peak due to the air conditioning is often at the same time with the industry trade peak, which further creates the peak electric power resources shortage. The electric power resources in trough time become surplus, which causes the power load off-peak difference oversized and the massive energy wasted. The ice-storage air conditioning system, as a powerful technology of shifting electric loads from on-peak to off-peak hours, has the great significance to the electric network. But the traditional ice-storage air-conditioning system all to have the middle circulation link generally, which causes the heat transfer efficiency to be low, the energy expensed greatly, moreover the system installed capacity is very big, and it only suits for the big scale unit central air-conditioning system. It cannot apply in the middle or small scale unit, for example, using in home or the business building. The direct evaporative internal-melt ice-storage air conditioning is one kind of new ice-storage air conditioning. Compared with the traditional ice-storage air conditioning system, it reduces the second heat-exchange. It’s one kind of highly effective ice-storage air conditioning. Its working principle is: during the charging process the coil in ice-tank works as an evaporator to chill the water into ice, while during the discharging process it works as a subcooler to further reduce the refrigerant temperature at the downstream of condenser. By this process, the full-load operating efficiency of the refrigeration system can be greatly improved and the initial capacity of the air-conditioning system can be reduced as well. The power load shift rate of the experimental system achieves about 25%. Hence, the direct evaporative internal-melt ice-storage air conditioning has remarkable social efficiency and economic efficiency, and it has the broad application prospect. Because the charging process and the discharging process have the close correlation with the refrigeration system of the direct evaporative internal-melt ice-storage air conditioning, thus its operating cycle is extremely complex. In overseas, the direct evaporative internal-melt ice-storage air conditioning has been researched and applied, but its core technologies are kept private. Most of literatures focus on the theory and the modeling analysis of heat transfer, and the literature focusing on the experimental study on the dynamic characteristics of the system about the charging process and discharging process is seldom found. As a result, in order to promote the direct evaporative internal-melt ice-storage air conditioning application, its core technologies (refrigerating process and melting-ice process to this system, heat-transfer characteristic and system dynamic characteristic) must be researched thoroughly. Through this experimental study, the crucial parameters of the direct evaporative internal-melt ice-storage air conditioning were obtained, and the experimental foundation and the design instruction were to be provided for the product development of the direct evaporative internal-melt ice-storage air conditioning. |
| 语种 | 中文 |
| 公开日期 | 2011-07-10 ; 2011-07-15 |
| 页码 | 63 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/4009]  |
| 专题 | 中国科学院广州能源研究所 |
| 推荐引用方式 GB/T 7714 | 杜艳利. 直膨式冰蓄冷空调关键技术研究, The experimental study of core technologies of direct evaporative internal-melt ice-storage system[D]. 广州能源研究所. 中国科学院广州能源研究所. 2007. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。