The master thesis deals with the elastocaloric phenomenon in polymers. A mathematical model was set up, based on the phenomenological principle of phase transformation description, originally intended for alloys. We measured the elastocaloric effect with a thermal camera and compared the results with those from the mathematical model. We compared straight fibres made of polyamide PA6 and polyethylene HDPE, determined their cooling efficiency, and extracted essential influencing factors. We also determined the cooling efficiency of helically twisted HDPE fibres and found a higher cooling efficiency compared to straight fibres.
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