Jaka Tušek (Author), Kurt Engelbrecht (Author), Dan Eriksen (Author), Stefano DallʹOlio (Author), Janez Tušek (Author), Nini Pryds (Author)

Abstract

A large fraction of global energy use is for refrigeration and air-conditioning, which could be decarbonized if efficient renewable energy technologies could be found. Vapour-compression technology remains the most widely used system to move heat up the temperature scale after more than 100 years; however, caloric-based technologies (those using the magnetocaloric, electrocaloric, barocaloric or elastocaloric effect) have recently shown a significant potential as alternatives to replace this technology due to high efficiency and the use of green solid-state refrigerants. Here, we report a regenerative elastocaloric heat pump that exhibits a temperature span of 15.3 K on the water side with a corresponding specific heating power up to 800W1/kg and maximum COP (coefficient-of-performance) values of up to 7. The efficiency and specific heating power of this device exceeds those of other devices based on caloric effects. These results open up the possibility of using the elastocaloric effect in various cooling and heat-pumping applications.

Keywords

elastokalorični učinek;materiali z oblikovnim spominom;regeneratorji;toplotne črpalke;elastocaloric effect;shape memory materials;regenerators;heat pumps;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 697:621.577(045)
COBISS: 14935067 Link will open in a new window
ISSN: 2058-7546
Views: 425
Downloads: 380
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: elastokalorični učinek;regenerativni termodinamični krožni proces;toplotne črpalke;
Type (COBISS): Article
Embargo end date (OpenAIRE): 2018-03-05
Pages: str. 1-6
Volume: ǂVol. ǂ1
Issue: ǂiss. ǂ10
Chronology: Oct. 2016
DOI: 10.1038/nenergy.2016.134
ID: 13077192
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