3537 超臨界CO_2サイクルの発電プラントへの応用と開発の現状 : 新型マイクロチャンネル熱交換器の開発(S49-6 超臨界CO_2サイクル(2),S49 原子炉システムおよびその要素技術)

概要

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This paper describes the development of high performance Micro Channel Heat Exchanger (MCHE) with supercritical CO_2 as a working fluid. MCHEs are made by etching and diffusion bonding. MCHEs have flow channels with a small hydraulic diameter. Many fins are disposed on the heat transfer surface in order to improve thermalhydraulic performance. The experimental study of MCHE thermalhydraulic performance using a supercritical CO_2 loop has been performed. The comparison of experimental data and calculated results are presented in this paper. The further optimization of heat transfer and pressure loss was done by three dimensional calculations using FLUENT CFD code. As a result the pressure drop is reduced by factor five keeping the same heat transfer performance.
社団法人日本機械学会の論文
2005-09-18