*Keiya Yamada¹, Kazuki Sawayama², Ikuo Katayama¹ (1.Hiroshima University, 2.Kyushu University)

*Kazuki Sawayama¹, Takuya ISHIBASHI², Fei Jiang³, Takeshi Tsuji⁴, Yasuhiro Fujimitsu⁴ (1.Graduate school of engineering, Department of Earth Resources Engineering, Kyushu University, 2.Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, 3.Department of Mechanical Engineering, Faculty of Engineering, Yamaguchi University, 4.Department of Earth Resources Engineering, Faculty of engineering, Kyushu University)