Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/216284
Enhancement of the Elastocaloric Performance of Natural Rubber by Forced Air Convection
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
We study the enhancement of the elastocaloric effect in natural rubber by using forced air convection to favour heat extraction during the elongation stage of a stretching–unstretching cycle. Elastocaloric performance is quantified by means of the adiabatic undercooling that occurs after fast removal of the stress, measured by infrared thermography. To ensure accuracy, spatial averaging on thermal maps of the sample surface is performed since undercooled samples display heterogeneities caused by various factors. The influence of the stretching velocity and the air velocity is analysed. The findings indicate that there is an optimal air velocity that maximises adiabatic undercooling, with stretching velocities needing to be high enough to enhance cooling power. Our experiments allowed the characterisation of the dependence of the Newton heat transfer coefficient on the air convection velocity, which revealed an enhancement up to 600% for air velocities around 4 m/s.
Matèries
Matèries (anglès)
Citació
Citació
VALDÉS, Emma, STERN TAULATS, Enric, CANDAU, Nicolas, MAÑOSA, Lluís, VIVES I SANTA-EULÀLIA, Eduard. Enhancement of the Elastocaloric Performance of Natural Rubber by Forced Air Convection. _Polymers_. 2024. Vol. 16, núm. 21, pàgs. 3078. [consulta: 21 de gener de 2026]. ISSN: 2073-4360. [Disponible a: https://hdl.handle.net/2445/216284]