D213 A PROPOSAL OF LOW CO_2 EMISSION POWER GENERATION SYSTEM UTILIZING OCEANIC METHANE HYDRATE(Environmental Protection-2)

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概要

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• A novel power generation system with low carbon dioxide (CO_2) emission was proposed. Thermal stimulation method was selected to dissociate the oceanic methane hydrate. By means of process simulation, the feasibility of proposed system was confirmed. A power generation system with approximately 40% thermal efficiency and above 90% CO_2 recovery rate was achieved. In this system, CO_2 due to the combustion is recovered by compressed seawater. CO_2 dissolved seawater is heated by the exhausted gas and injected to the hydrate layer to dissociate the methane hydrate. CO_2 is sequestrated simultaneously. Moreover, in order to quantify the heat loss during the injection of hot seawater to the hydrate layer, numerical simulation of the internal pipe flow was conducted. It was shown that the seawater temperature at the pipe outlet can be evaluated by the pipe diameter, thermal conductivity and the thickness of the insulation material.

• 一般社団法人日本機械学会の論文
• 2009-11-16

著者

• MARUYAMA Shigenao

  Institute of Fluid Sciences, Tohoku University

• KOMIYA ATSUKI

  Institute of Fluid Science, Tohoku University

• Maruyama Shigenao

  Institute Of Fluid Science Tohoko University

• Komiya Atsuki

  Institute Of Fluid Science Tohoku University

• CHISAKI Masazumi

  Graduate School of Engineering, Tohoku University

• SHIRAKASHI Ryo

  Institute of Industrial Science, The University of Tokyo

• Shirakashi Ryo

  Institute Of Industrial Science The University Of Tokyo

• Chisaki Masazumi

  Graduate School Of Engineering Tohoku University

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