Estimation of magneto-caloric effect is crucial to determine a material’s suitability for the desired operating conditions. The magneto-caloric effect can be measured in two ways-the magnetic entropy change and the adiabatic temperature change. These parameters are the prerequisites in evaluating a magnetic refrigeration system. In this work, an application is developed and tested for 3 materials (one Gadolinium and two Lanthanum alloys) using COMSOL multiphysics to estimate the final temperature of a Magneto-Caloric Material (MCM). The duration of the magneto-caloric effect is compared amongst 4 different cases of magnetic field change. Among the selected materials Gadolinium shows the highest adiabatic temperature difference of 12K at a field change from 0 to 5 tesla.
Magnetic Refrigeration is an environment-friendly technology when compared to the conventional gas compression system known as vapor compression refrigeration system. Room temperature magnetic refrigeration is a technology which relies on a solid material known as the Magneto-Caloric Material (MCM) which exhibits Magneto-Caloric Effect (MCE) near room temperature. The Magneto-Caloric Effect is the change in temperature of a magnetic material when that material is either magnetized/demagnetized adiabatically. This review is focused on the selection of a suitable MCM which exhibits near-room-temperature MCE. It also explains a methodology to estimate the amount of material required, based on the cooling load or refrigeration capacity (RC) calculation
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