Establishment of high accuracy evaluation method of renewable geothermal energy resource by hybrid X-ray CT method

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06641
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Earth system and resources engineering
• Research Institution: Kumamoto University
• Principal Investigator: Sato Akira 熊本大学, 大学院先端科学研究部(工), 准教授 (40305008)
• Co-Investigator(Renkei-kenkyūsha): MUKUNOKI Toshifumi 熊本大学, 先端科学研究部, 准教授 (30423651)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 地熱 / 再生可能エネルギー / Ｘ線ＣＴ / 有限体積法

Outline of Final Research Achievements

Firstly, fundamental procedure to simulate water-vapor two phase flow was established be means of finite volume method. The characteristic point of the study is that we introduced the geothermal element method and that the whole geothermal reservoir is simulated by the combination of the geothermal elements. Two phase sate in the rock was also visualized by X-ray CT method. Especially, new calibration technique was established using KI solution as a contrast agent, and it becomes possible to evaluate the real density distribution, such as water-vapor condition in pores.

Free Research Field

岩盤工学