Effect of Heat Pipe in the Metal Hydride Tank for Hydrogen Storage
Muhammet Kayfec Fawzi ELHAMSHRI Gökan OZKUL
AbstractHeat transfer from/to the metal hydride bed is a significant factor affecting the performance of metal hydride storage tanks (MHSTs for short). This study presents a novel design for metal hydride tank equipped with a heat pipe. The experimental study explains the use of heat pipe to enhance the heat transfer in MHST, which built using LaNi4.75Al0.25 as the storage media and under various hydrogen pressure supplies in range of 2 to10 bar. This study also presents comparisons between the two different MHSTs which are designed with and without heat pipe. Methanol is used as a working fluid inside the heat pipe. Results show that the usage of heat pipes can be a good choice to increase hydrogen storing performance in both absorption and desorption. The absorption time at 10 bar hydrogen inlet pressure was reduced more than 30%, and the mass of hydrogen storage increased by 15%