Real-Time Micro-Monitoring of Surface Temperature and Strain of Magnesium Hydrogen Tank through Self-Made Two-In-One Flexible High-Temperature Micro-Sensor

Chi-Yuan Lee; Chia-Chieh Shen; Chun-Wei Chiu; Hsiao-Te Hsieh

doi:10.3390/mi13091370

Real-Time Micro-Monitoring of Surface Temperature and Strain of Magnesium Hydrogen Tank through Self-Made Two-In-One Flexible High-Temperature Micro-Sensor

Micromachines (Basel). 2022 Aug 23;13(9):1370. doi: 10.3390/mi13091370.

Authors

Chi-Yuan Lee¹, Chia-Chieh Shen¹, Chun-Wei Chiu¹, Hsiao-Te Hsieh¹

Affiliation

¹ Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan.

Abstract

The adsorption and desorption of hydrogen in the magnesium powder hydrogen tank should take place in an environment with a temperature higher than 250 °C. High temperature and high strain will lead to reactive hydrogen leakage from the magnesium hydrogen tank due to tank rupture. Therefore, it is very important to monitor in real time the volume expansion, temperature change, and strain change on the surface of the magnesium hydrogen tank. In this study, the micro-electro-mechanical systems (MEMS) technology was used to innovatively integrate the micro-temperature sensor and the micro-strain sensor into a two-in-one flexible high-temperature micro-sensor with a small size and high sensitivity. It can be placed on the surface of the magnesium hydrogen tank for real-time micro-monitoring of the effect of hydrogen pressure and powder hydrogen absorption expansion on the strain of the hydrogen storage tank.

Keywords: magnesium hydrogen tank; real-time micro-monitoring; two-in-one flexible high-temperature micro-sensor.

Grants and funding

This work was accomplished with much needed support and the authors would like to thank for the financial support by Ministry of Science and Technology of R.O.C. through the grant MOST 108-3116-F-155-001, 109-2221-E-155-002 and 111-2622-8-155-004-TM.