Vývoj technického řešení tepelného managementu metalhydridů pro efektivní skladování vodíku

Abstract

Hydrogen is considered a promising energy carrier for future energy systems due to its properties, but its efficient and safe storage remains a challenge. This thesis focuses on hydrogen storage in metal hydride storage tanks, which represent one of the options for low-pressure hydrogen storage.

In the experimental part, an apparatus for filling the storage tank with hydrogen was designed and implemented, including sensors for monitoring absorption and desorption parameters. The aim was to develop and experimentally verify a thermal management system enabling temperature regulation of the storage tank during these processes. The results demonstrated that without thermal management, the absorption of 90% of the tank’s capacity required approximately 16 to 17 hours, while cooling with water at a temperature of 11 °C resulted in a reduction to less than 2 hours. Additionally, a greater amount of hydrogen was absorbed at this lower temperature. The desorption process was reduced from approximately 30 hours to less than 3 hours when heated to 55 °C.

The proposed thermal management system demonstrably enhances the efficiency of the filling and emptying of the storage tank and represents a significant step towards the optimization of low­-pressure hydrogen storage in practical applications.