Comparison Between Two Different Rotary Configurations of an Elastocaloric Cooling Device

This paper presents a numerical study of the elastocaloric effect in NiTi wire using two different configurations in a rotary prototype, analyzed through a 2D model solved via the finite element method. The focus is on the design of the device’s cold and hot channels, comparing two configurations: the obstacle configuration and the cross-configuration. The obstacle configuration includes barriers in the transition area to prevent unwanted mixing between the inlet and outlet air from the cold and hot regenerators, while the cross-configuration features an equidistant arrangement between the inlet and outlet sections to avoid suction phenomena at the outlet sections.