Elastocaloric cooling processes: The influence of material strain and strain rate on efficiency and temperature span

Autor: Marvin Schmidt, Andreas Schütze, Stefan Seelecke
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: APL Materials, Vol 4, Iss 6, Pp 064107-064107-6 (2016)
Druh dokumentu: article
ISSN: 2166-532X
DOI: 10.1063/1.4953433
Popis: This paper discusses the influence of material strain and strain rate on efficiency and temperature span of elastocaloric cooling processes. The elastocaloric material, a newly developed quaternary Ni-Ti-Cu-V alloy, is characterized at different maximum strains and strain rates. The experiments are performed with a specially designed test setup, which enables the measurement of mechanical and thermal process parameters. The material efficiency is compared to the efficiency of the Carnot process at equivalent thermal operation conditions. This method allows for a direct comparison of the investigated material with other caloric materials.
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