Analysis of the Storage Capacity of An Uncooled MH Tank

Abstract— The need for cooling of metal hydride (MH) tanks during the hydrogen absorption process is a well-known fact, especially when it is necessary to achieve full absorption of the alloy with hydrogen within a short time frame. However, effective cooling of the tank is not always possible. The absence of cooling significantly extends the absorption time or reduces the absorption capacity of the alloy, which is crucial for the competitive operation of a metal hydride tank. This article focuses on the effect of the absence of an external cooling system on the change in the absorption capacity of the MH alloy within a defined filling time frame.