Žiga Ahčin (Author), Stefano DallʹOlio (Author), Andrej Žerovnik (Author), Urban Žvar Baškovič (Author), Luka Porenta (Author), Parham Kabirifar (Author), Jan Cerar (Author), Samo Zupan (Author), Miha Brojan (Author), Jernej Klemenc (Author), Jaka Tušek (Author)

Abstract

Refrigeration is vital to the modern society; however, it is one of the most polluting sectors in the world. Despite decades of development, our standard vapor-compression technology remains relatively inefficient and still uses harmful refrigerants. Elastocaloric cooling has shown significant potential as an environmentally benign alternative to the vapor-compression technology, but one of the biggest challenges to be solved is its limited fatigue life. Our new design of an elastocaloric regenerator made of compression-loaded Ni–Ti tubes enables buckling- and fatigue-resistant operation and record performance with commercially relevant cooling and heat-pumping characteristics. In terms of maximum specific cooling/heating performance metrics, it surpasses all previously developed caloric devices and demonstrates the enormous potential of compression-loaded elastocaloric devices for a wide range of cooling and heat-pumping applications.

Keywords

elastocaloric effect;caloric cooling;heating;heat-pumps;shape-memory alloys;tubes;Ni–Ti;compressive loading;fatigue efficiency;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 539.3
COBISS: 122510851 Link will open in a new window
ISSN: 2542-4351
Views: 316
Downloads: 74
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: elastokalorični učinek;hlajenje;ogrevanje;toplotne črpalke;regenereatorji;Ni-Ti;materiali z oblikovnim spominom;trajno-dinamična trdnost;
Type (COBISS): Article
Pages: str. 2338-2357
Volume: ǂVol. ǂ6
Issue: ǂnr. ǂ10
Chronology: Oct. 2022
DOI: 10.1016/j.joule.2022.08.011
ID: 17111304