Speaker
Description
Underground hydrogen storage (UHS) is a key technology for large-scale renewable energy storage, and the efficiency and benefits of UHS depend primarily on storability and injectability of hydrogen. The pore-scale mechanisms governing hydrogen-brine displacement, trapping, and remobilization fundamentally control these macroscopic storage properties. In this study, we develop a multiphase lattice Boltzmann model specifically designed for simulating hydrogen‑brine system, which can address the numerical instability under large viscosity and density ratio of hydrogen-water system. Besides, the comprehensive effects of many influencing factors, such as wettability, pressure, and injection rate, on hydrogen storage remain poorly understood. To address this, we have conducted relevant numerical simulations to investigate the effects of various factors on the injection efficiency of hydrogen in aquifers. The findings from these studies can provide valuable references for the construction and operation of underground storage reservoirs for UHS.
| Country | China |
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