High-performance cooling and heat pumping based on fatigue-resistant elastocaloric effect in compression

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

In recent years, elastocaloric cooling has shown great potential as an alternative to vapor-compression refrigeration. However, there is still no existing elastocaloric device that offers fatigue-resistant operation and yet high cooling/heat-pumping performance. Here, we introduce a new design of an elastocaloric regenerator based on compression-loaded Ni–Ti tubes, referred to as a shell-and-tube-like elastocaloric regenerator. Our regenerator design, which can operate in both cooling and heat-pumping modes, enables durable operation and record performance with a maximum temperature span of 31.3 K in heat-pumping mode or maximum heating/cooling powers of more than 60 W, equivalent to 4,400 W/kg of the elastocaloric material (at temperature span of 10 K). In terms of both maximum performance metrics, these results surpass all previously developed caloric (magnetocaloric, electrocaloric, and elastocaloric) devices and demonstrate the enormous potential of compression-loaded elastocaloric regenerators to be used in elastocaloric devices for a wide range of cooling and heat-pumping applications.

• Jezik: Angleški jezik
• Ključne besede: elastocaloric effect, caloric cooling, heating, heat-pumps, shape-memory alloys, tubes, Ni–Ti, compressive loading, fatigue efficiency, fatigue, efficiency
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: Str. 2338-2357
• Številčenje: Vol. 6, iss. 10
• PID: 20.500.12556/RUL-142647
• UDK: 539.3
• ISSN pri članku: 2542-4351
• DOI: 10.1016/j.joule.2022.08.011
• COBISS.SI-ID: 122510851
• Datum objave v RUL: 17.11.2022

Gradivo je del revije

• Naslov: Joule
• Založnik: Elsevier
• ISSN: 2542-4351
• COBISS.SI-ID: 20280835

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: elastokalorični učinek, hlajenje, ogrevanje, toplotne črpalke, regenereatorji, Ni-Ti, materiali z oblikovnim spominom, trajno-dinamična trdnost

Projekti

• Financer: EC - European Commission
• Program financ.: H2020
• Številka projekta: 803669
• Naslov: Superelastic Porous Structures for Efficient Elastocaloric Cooling
• Akronim: SUPERCOOL

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0422
• Naslov: Funkcionalne tekočine za napredne energetske sisteme