| High-Quality Critical Heat Flux in Horizontally Coiled Tubes |
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| 引用本文： | Weimin Ma, Mingyuan Zhang, Xuejun Chen (State Key Laboratory of Multiphase Flow in PoWer Engineering,Xi'an Jiaotong Universityt Xi'an 710049,China). High-Quality Critical Heat Flux in Horizontally Coiled Tubes[J]. 热科学学报(英文版), 1995, 4(3): 205-211. DOI: 10.1007/BF02650830 |
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| 作者姓名： | Weimin Ma Mingyuan Zhang Xuejun Chen (State Key Laboratory of Multiphase Flow in PoWer Engineering Xi'an Jiaotong Universityt Xi'an 710049 China) |
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| 作者单位： | State Key Laboratory of Multiphase Flow in PoWer Engineering，Xi'an Jiaotong Universityt Xi'an 710049，China |
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| 摘 要： | Ｈｉｇｈ－ＱｕａｌｉｔｙＣｒｉｔｉｃａｌＨｅａｔＦｌｕｘｉｎＨｏｒｉｚｏｎｔａｌｌｙＣｏｉｌｅｄＴｕｂｅｓＷｅｉｍｉｎＭａ；ＭｉｎｇｙｕａｎＺｈａｎｇ；ＸｕｅｊｕｎＣｈｅｎ（ＳｔａｔｅＫｅｙＬａｂｏｒａｔｏｒｙｏｆＭｕｌｔｉｐｈａｓｅＦｌｏｗｉｎＰｏ...
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| 关 键 词： | 临界热流 螺旋管 热交换 |
High-quality critical heat flux in horizontally coiled tubes |
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| Weimin Ma,Mingyuan Zhang,Xuejun Chen. High-quality critical heat flux in horizontally coiled tubes[J]. Journal of Thermal Science, 1995, 4(3): 205-211. DOI: 10.1007/BF02650830 |
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| Authors: | Weimin Ma Mingyuan Zhang Xuejun Chen |
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| Affiliation: | (1) State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, 710049 Xi’an, China |
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| Abstract: | An investigation on the high-quality dryout in two electrically heated coiled tubes with horizontally helix axes is reported. The temperature profiles both along the tube and around the circumference are measured, and it is found that the temperature profiles around the circumference are not idelltical for the cross-sections at different parts of the coil. The "local condition hypothesis" seems applicable under present conditions, and the critical heat flux qcr decreases with increasing critical quality xcr The CHF increases as mass velocity and ratio of tube diameter to coil diameter (d/D) increases, and it seems not to be effected by the system pressure. The CHF is larger with coils than that with straight tubes, and the difference increases with increasing mass velocity and d/D. |
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| Keywords: | horizoatally coiled tube critical heat flux. |
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