| 供热水系统CTAC减阻流体减阻与传热性能研究 |
| |
| 引用本文： | 张红霞,王德忠,顾卫国,董正方.供热水系统CTAC减阻流体减阻与传热性能研究[J].暖通空调,2007,37(9):45-49. |
| |
| 作者姓名： | 张红霞 王德忠 顾卫国 董正方 |
| |
| 作者单位： | 1. 上海交通大学
2. 上海市东川路800号上海交通大学机械与动力工程学院,200240 |
| |
| 基金项目： | 国家自然科学基金;国家自然科学基金;教育部高等学校博士学科点专项科研基金 |
| |
| 摘 要： | 对不同工况下不同浓度和配比的CTAC减阻流体在二维流道中的减阻性能和传热性能进行了试验测试。结果表明,在减阻流体流动达到临界雷诺数之前,传热性能下降率随雷诺数的增大逐渐增大,在达到临界雷诺数之后,传热性能急剧增强;传热性能下降率与减阻率变化趋势相同;减阻流体的温度梯度在过渡层比水大,在湍流核心区比水小。
|
| 关 键 词： | 减阻流体 传热性能 表面活性剂 传热性能下降率 减阻率 |
| 修稿时间： | 2006-12-05 |
Study on drag-reducing and heat transfer performances in heating water systems with CTAC additives |
| |
| Zhang Hongxia,Wang Dezhong,Gu Weiguo,Dong Zhengfang.Study on drag-reducing and heat transfer performances in heating water systems with CTAC additives[J].Journal Heating Ventilating and Airconditioning,2007,37(9):45-49. |
| |
| Authors: | Zhang Hongxia Wang Dezhong Gu Weiguo Dong Zhengfang |
| |
| Affiliation: | Shanghai Jiao Tong University;Shanghai;China |
| |
| Abstract: | Experimentally investigates the drag-reducing and heat transfer performances of cetyltrimethyl ammonium chloride(CTAC)surfactant solution with different concentrations and mixture ratios under different conditions in a two-dimensional channel.The results indicate that the heat transfer reduction rate of the CTAC drag-reducing fluid increases with Reynolds number when Reynolds number is below the critical value and decreases rapidly when Reynolds number exceeds the critical value,the trends of heat transfer reduction rate and drag reduction rate are similar,and the temperature gradient of the CTAC drag-reducing fluid is larger than that of water in buffer layer and smaller than that of water in turbulent core area. |
| |
| Keywords: | drag-reducing fluid heat transfer performance surfactant heat transfer reduction rate drag reduction rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
