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首页> 外文会议>25th International Conference on Offshore Mechanics and Arctic Engineering 2006(OMAE2006) vol.4 >STUDY ON CO_2 RELEASING NOZZLE FOR CO_2 OCEAN STORAGE
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STUDY ON CO_2 RELEASING NOZZLE FOR CO_2 OCEAN STORAGE

机译：CO_2海洋存储中CO_2释放喷嘴的研究

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Ocean storage of CO_2 is one of greenhouse gas control technologies, where CO_2 captured from flue gas of fossil fuels is injected into deep sea below 3500m depth to be sequestered from the atmosphere. A CO_2 sending method, COSMOS, was proposed as a method of ocean storage, which enables CO_2 drops released in mid-depth water to descend to deep sea floor below the depth of 3500m. Then, the authors have worked for development and evaluation of COSMOS.rnIn the first phase of the COSMOS project, the concept of COSMOS was demonstrated by in situ experiments of small-scale CO_2 releasing at mid-depth water in Monterey Bay, U.S.A. Three models of CO_2 releasing nozzle unit were developed for the experiments. The first model of nozzle unit released liquid CO_2 as one mass; however, it was immediately broken into small droplets and soon turned to ascend. The second and third models were designed to have thermal insulator enough to keep low temperature so that both models successfully released liquid CO_2 with dry ice, which continued descending for a few minutes. Based on these results, COSMOS was improved, where injection of a mixture of liquid CO_2 and dry ice, CO_2 slurry, is expected to enable small CO_2 drops to descend to deep sea floor below 3500m depth.rnThen, in the second phase of the COSMOS project, the authors started an investigation on the effect of the aspects of releasing nozzle on the behavior of released slurry drops, and obtained a few results from lab experiment of CO_2 slurry releasing from two types of nozzle head.
机译：海洋中的CO_2储存是一种温室气体控制技术，其中将从化石燃料烟道气中捕获的CO_2注入到3500m深度以下的深海中，以便与大气隔离。提出了一种CO_2发送方法，即COSMOS，作为海洋存储的一种方法，该方法可使中深水中释放的CO_2液滴下降到3500m深度以下的深海底。然后，作者为COSMOS的开发和评估工作。rn在COSMOS项目的第一阶段，通过在美国蒙特雷湾中深度水域中进行小规模CO_2释放的原位实验来证明COSMOS的概念三种模型开发了用于CO 2释放喷嘴的装置。喷嘴单元的第一个模型将液体CO_2释放为一个质量。但是，它立即被打碎成小滴，很快就上升了。第二个和第三个模型设计为具有足以保持低温的绝热材料，因此两个模型都成功地释放了带有干冰的液态CO_2，并持续下降了几分钟。基于这些结果，COSMOS得到了改进，在其中注入液态CO_2和干冰的混合物CO_2浆液有望使小的CO_2液滴下降到3500m深度以下的深海底。rn然后，在COSMOS的第二阶段在这个项目中，作者开始研究释放喷嘴的各个方面对释放的浆料滴的行为的影响，并从两种类型的喷嘴头释放CO_2浆料的实验室实验中获得了一些结果。

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