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1
題名:A Preliminary Study on Air-Lift Artificial Upwelling System    
「空氣浮升」人工湧升流系統初步研究
著者:Nai-Kuang Liang(梁乃匡)
出版地區:台灣
出版城市:台北市
學科:地球科學
關鍵字:深層海水 ; 營養鹽 ; 人工湧升流 ; 空氣浮升法 ; 柔性管 ; deep seawater ; nutrients ; artificial upwelling ; air-lift method ; flexible pipe
刊名:ACTA Oceanographica Taiwanica
卷期:35卷2期(1996.6)
頁碼:187-200
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

深層海水由於其豐富養分及低溫等特性成為取之不盡的海洋資源之一。自然湧升流的海域都是漁產豐富的地方,以人工方法把大量深海水帶到海表層來,可以創造新的漁場。過去有一些製造人工湧升流的方法,不是湧升流量太小,就是提出的裝置可行性不高。運用空氣浮升法是一個比較有潛力的方式,可在岸上壓縮空氣到湧升管或由吸收波能浮體將空氣打入皆可。依據Rautenberg(1972)理論,初步估計0.03立方米每秒空氣流量經由3米直徑的湧升管,可以湧升4立方米每秒的300米深海水到表層來。當然,還有許多研究需要進行,尤其是一個在海上進行的人工湧升流試驗,來了解深海水上升後的物理、化學及生物性變化是非常有意義的研究課題。建議台東的三仙台附近是一個理想地點;時間應選擇夏天,因為依據陳與王(1995)在夏季台灣東岸是斜溫層淺的南海水,又依據劉等(1988)台灣附近海水營養鹽含量與水溫成負相關。此外,本文所建議的柔性湧升管構想亦可用作分離式溫差電廠冷水管之用。
Due to the characteristics of richness in nutrients and low temperature, deep seawater becomes an important renewable ocean resource. Generally, the natural upwelling sea area is a fish ground of high production. To bring a huge amount of deep seawater to the sea surface by an artificial means can generate a new fishing ground. In the past, some proposed artificial upwelling devices are either not efficient in pumping deep seawater or not practical. The air-lift process is more promising. Air can be compressed and transported to the upwelling pipe or pumped by a wave-energy conversion buoy. Following Rautenberg's theory (1972), a preliminary estimate is that an air flowrate of 0.03 cms may upwell 4 cms seawater from 300 m depth through a pipe of 3 meters in diameter. Certainly there are many research needs in ahead of us. Especially a field experiment of artificial upwelling is a meaningful proposal, to understand the changes in physical, chemical and biological oceanography during upwelling. San-Shian-Tai of Taitung County is an ideal site. According to Chern & Wang (1995), South China Sea water which is strong stratified flows along east coast of Taiwan in summer. And according to Liu et al. (1988), the nutrient concentration of seawater in the vicinity of Taiwan is highly negatively correlated to the seawater temperature. Hence, the experiment should be executed in summer. Besides, the flexible pipe concept proposed in this paper can also be applied to the cold water pipe of a detached OTEC plant.


    

本卷期目次
ACTA Oceanographica Taiwanica 35卷2期 (1996.6)
Sedimentary Features of Shelf North of Taiwan Revealed by 3.5 kHz Echo Character/ Ho-Shing YuGwo-Shyh Song
Carbon and Oxygen Isotopic Compositions of Planktonic Foraminifera from Recent Sediments off Northeastern Taiwan/ Ying-Tzung ShiehChung-Ho WangMin-Pen Chen
Stock Assessment of the South Pacific Albacore by Using the Generalized Production Model, 1967-1991/ Yu-Min YehChien-Hsiung Wang
The Effect of Break in Western Boundary on the Western Boundary Current/ Wei LiQin-Yu LiuShih-Pei Cheng
Stock Assessment of South Atlantic Albacore by the Nonequilibrium Production Model/ Chi-Lu SunSu-Zan Yeh
Remote Sensing of Hong Kong Waters: Spatial and Temporal Changes of Sea Surface Temperature/ Dan-Ling TangI-Hsun Ni
A Preliminary Study on Air-Lift Artificial Upwelling System/ Nai-Kuang Liang
 
   
 
   

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