CURRENT RESEARCH

Uncertainty quantifiction - method of distribution, with Daniel Tartakovsky and Kuo-Chin Hsu

Physics-informed machine learning, with Kuo-Chin Hsu

Underground energy storage (methane, hydrogen, compressed air), with Kuo-Chin Hsu

SELECTED RESEARCH PROJECTS

Contaminated Groundwater Remediation (土壤地下水汙染整治)

Working with Prof. Shih-Jung Wang and Prof. Kuo-Chin Hsu, I built a hydrogeological model for Touciao Industrial Parks in Chiayi. Because we had limited hydraulic conductivity measurements, I developed a method using indicator kriging to model the aquifer based on soil types from drilling cores. This project was done with Sinotech Environment Company to help Chiayi County Environmental Protection Bureau find pollution sources and plan cleanup strategies.

Geothermal Energy Exploitation (地熱能源開採)

I worked with Prof. Bieng-Zih Hsieh and Prof. Kuo-Chin Hsu to create the first numerical model of Huangtsuishan Geothermal site in Taiwan. Since Taiwan sits on the Pacific Rim of Fire, geothermal energy could be a great renewable power source. We used temperature data collected by ITRI to test different scenarios and found the best distance between injection and production wells based on operation time and reinjection rates.

Land Subsidence Prevention (地層下陷防治)

Under Prof. Kuo-Chin Hsu's guidance, I helped several lab mates study land subsidence in the Choushui River area, where excessive groundwater pumping for agriculture and aquaculture is causing problems near the high-speed railway. We used tools like Kalman filter and MODFLOW SUB to model subsidence, and applied Bayesian methods to estimate hydraulic conductivity from indirect data. In our latest Water Resources Agency project, we used GIS to map the most serious subsidence areas to help with policy making.

Carbon Dioxide Sequestration (二氧化碳地質封存)

I am interested in multiphysics simulation, and are curious about how carbon dioxide influences a cement sheath of a supercritical CO2 injection well. Working with Prof. Chein-Lee Wang, we tested the time-varying mechanical properties of curing cement paste under different pressures and temperatures. I used COMSOL to model chemical, thermal, and hydraulic processes together to simulate the stresses and see how the cement sheath integrity might fail.

Nuclear Waste Final Disposal (核廢料最終地質處置)

I have been working with Prof. Hsu as part of a collaborative team with the Radioactive Waste Disposal Technology Research and Development Center at National Tsing Hua University (led by Prof. Shih-Chin Tsai) and Department of Chemistry at National Atomic Research Institute (led by Dr. Tsuey-Lin Tsai). Our research focuses on experiments and modeling nuclide transport for nuclear waste disposal sites and thermal-mechanical effects on buffer materials. While at Hokkaido University, I took a course in advanced nuclear waste management, and worked at the JAEA Horonobe underground lab as an intern, analyzing groundwater chemistry and testing rock mechanical properties. I also analyzed data from DECOVALEX heater tests to inversely estimate in-situ rock properties. This research topic is funded by Sinotech, and NSTC supports us in collaborating with the Water Problems Institute at Russian Academy of Sciences (Prof. Dzhamalov Roald Gamidovich).