The use of adequate thermal energy storage (TES) systems is an efficient way to achieve thermal comfort in buildings reducing the cooling and heating demand. Besides, deploy phase change materials (PCM) to meet and enhance the TES needs is highly effective and widely studied. In this paper, a study of the degradation of two fatty acids is presented, capric and myristic acids, in order to evaluate whether their thermo-physical properties are affected throughout time during service. This was carried out by means of two different types of thermal treatments: degradation at constant temperature (thermal stability test), 60 °C during 100 h and 500 h, and degradation with heating and cooling cycling (thermal cycling stability), between a temperature range from 15 °C to 70 °C with 0.5 °C/min ramp during 500 and 1000 cycles. Despite no significant changes were measured for myristic acid, experimental results revealed a decrease of melting enthalpy of 6.6% in capric acid thermally treated for 500 h. Evidences of chemical degradation were found that might explain the decrease in thermophysical properties during use.

El continuo desarrollo de las nuevas tecnologías; una política patrimonial focalizada en los lugares de memoria del exilio republicano español y el desarrollo de nuevas redes internacionales que promueven proyectos vinculados a la memoria colectiva en Europa; ha permitido que surjan nuevas experiencias colaborativas como el proyecto “In Between?”. Impulsado por la European Network Remembrance and Solidarity (ENRS) y dirigido a jóvenes estudiantes de toda Europa; una de las ediciones de este proyecto fue realizada en la frontera francoespañola. Distintos estudiantes de diferente nacionalidad compartieron una experiencia de investigación y recogida de datos de varios espacios memoriales y testimonios del exilio republicano español; una memoria que ha marcado para siempre diferentes municipios alrededor de la frontera; creando una identidad singular.