Research and development on no-moving-part valves using enhancement

Kai Shing Yang*, Young Chang Liu, Chi-Chuan Wang, Jin Cherng Shyu

*Corresponding author for this work

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

This study characterizes and analyzes the performances of micro diffusers/nozzles with six types of enhancement structures. The pressure drops across the designed micro nozzles/diffusers are found to be increased considerably when the obstacle and fin structure are added. Further, the micro nozzle/diffuser having added circular area reveals the lowest pressure drop, owing to the hydraulic diameter is increased by circular area and lower interface friction. The maximum improvement of the loss coefficient ratio is about 16 % for an added 3-fin structure operated at a Reynolds number around 70. Upon this situation, the static rectification efficiency improves 4.43 times than the conventional nozzle/diffuser. Experimental results indicate the performance peaks at a Reynolds number around 70, and an appreciable decline is encountered when the Reynolds number is reduced. It is due to the efficiency ratio of conventional micro nozzle/diffuser significant increases with the Reynolds number.

原文English
主出版物標題Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009
頁面739-743
頁數5
版本PART A
DOIs
出版狀態Published - 1 十二月 2009
事件7th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2009 - Pohang, Korea, Republic of
持續時間: 22 六月 200924 六月 2009

出版系列

名字Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009
號碼PART A

Conference

Conference7th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2009
國家Korea, Republic of
城市Pohang
期間22/06/0924/06/09

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