Abstract
In this paper, the magnetocaloric in TbFeSi and DyFeSi intermetallic magnetic alloys were simulated using mean-field model theory. A good agreement between theoretical and experimental magnetizations and magnetic entropy changes curves was established. Based on the mean-field prediction, RCP values can reach 810 and 779 J.kg(-1) under 10 T magnetic field for TFS and DFS samples, respectively.