Exergetic Approach for Magnetic Refrigeration

The paper presents an exergetic analysis of a magnetic regenerator in the current context of artificial cold production. Methods for calculating the exergetic balance for a group of physical processes were presented as component parts of integral processes. If we examine the heat transfer process and contemplate the calculation formulas of entropy generation and exergy losses, we see that in this case, the situation is much clearer than the mass exchange process. In the second case, the results obtained give the possibility to make only some qualitative comparisons. In technological processes we can find a much richer range of cases in which the specifics of energy and exergetic are not yet clear to the end. And, of course, the first and second principles of thermodynamics should be applied to their study. The results acquired after modeling in MatLab environment allow obtaining a numerical model of a magnetic regenerator performed on the principle of parallel gadolinium plates, operating at room temperature.