  During the last few years, the increasing demand of energy for refrigeration
applications has relived the interest of the scientific community in the study
of alternative methods to the traditional gas-based refrigeration. Within this
framework, the use of solid state refrigeration based on the electrocaloric
effect reveals itself as one of the most promising technologies. In this work,
we analyze how the temperature change associated with the electrocaloric effect
shows a correlation with the electrical properties of a commercial multilayer
capacitor. In that sense we established a clear relation between the adsorption
currents and the temperature change produced by the electrocaloric effect.
Additionally, intrinsic leakage currents are responsible for the sample heating
due to the Joule effect. These well distinguished contributions can be useful
during the design of solid state refrigeration devices based on the
electrocaloric effect.
