| Correction of Non-Isokinetic Sampling of Wetness Measurement for Wet Steam Flow |
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| 引用本文： | Li Yanfeng,Li Junmei,Jia Heng (College of Construction and Civil Engineering,Beijing Polytechnic University,Beijing,100022,China) Wang Xinjun,Xu Tingxiang (School of Energy and Power Engineering,Xi''''an Jiaotong University,Xi''''an,Shaanxi Province. Correction of Non-Isokinetic Sampling of Wetness Measurement for Wet Steam Flow[J]. 热科学学报(英文版), 2002, 11(1): 41-48. DOI: 10.1007/s11630-002-0020-6 |
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| 作者姓名： | Li Yanfeng Li Junmei Jia Heng (College of Construction and Civil Engineering Beijing Polytechnic University Beijing 100022 China) Wang Xinjun Xu Tingxiang (School of Energy and Power Engineering Xi''''an Jiaotong University Xi''''an Shaanxi Province |
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| 作者单位： | Li Yanfeng，Li Junmei，Jia Heng (College of Construction and Civil Engineering，Beijing Polytechnic University，Beijing，100022，China |
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| 摘 要： | IntroductionThe final stages of large steam turbines in fossilpower plant and all stages of turbines in nuclear powerp1ants operate in the wet steam region. It is important todevelop a simple direct method for measuring thewetness of flowing wet steam. The heating method hasmany advantages. First, compared with optical method,the measured wetness results of this method consist ofevery size of water droplets in wet steam flow. Second, itis not restricted to the measurement environment, it canb…
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| 收稿时间： | 2007-12-09 |
Correction of non-isokinetic sampling of wetness measurement for wet steam flow |
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| Li Yanfeng,Li Junmei,Jia Heng,Wang Xinjun,Xu Tingxiang. Correction of non-isokinetic sampling of wetness measurement for wet steam flow[J]. Journal of Thermal Science, 2002, 11(1): 41-48. DOI: 10.1007/s11630-002-0020-6 |
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| Authors: | Li Yanfeng Li Junmei Jia Heng Wang Xinjun Xu Tingxiang |
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| Affiliation: | (1) College of Construction and Civil Engineering, Beijing Polytechnic University, 100022 Beijing, China;(2) School of Energy and Power Engineering, Xi’an Jiaotong University, 710049 Xi’an, Shaanxi Province, China |
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| Abstract: | A mathematical model for predicting the behavior of wet steam flow in the vicinity of the intake head of the sampling probe is presented. The vapor flow field and droplet trajectory in the calculated region have been obtained. The errors caused by non-isokinetic sampling for different conditions have been analyzed and the analytical results would provide useful data for the design and application of a heating method-based wetness measurement probe in practice. |
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| Keywords: | sampling wet steam flow simulation. |
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