A regenerative elastocaloric heat pump

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

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.

• Jezik: Angleški jezik
• Ključne besede: elastocaloric effect, regenerative thermodynamic cycle, heat pumps
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2016
• Št. strani: Str. 1-6
• Številčenje: Vol. 1, iss. 10, art. 16134
• PID: 20.500.12556/RUL-127890
• UDK: 697:621.577(045)
• ISSN pri članku: 2058-7546
• DOI: 10.1038/nenergy.2016.134
• COBISS.SI-ID: 14935067
• Datum objave v RUL: 28.06.2021

Gradivo je del revije

• Naslov: Nature energy
• Skrajšan naslov: Nat. energy
• Založnik: Nature Publishing Group
• ISSN: 2058-7546
• COBISS.SI-ID: 14934811

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: elastokalorični učinek, regenerativni termodinamični krožni proces, toplotne črpalke

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: DTU’s international H.C. Ørsted postdoctoral programm
• Naslov: Design and testing of an efficient elastocaloric refrigerator for room-temperature applications

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: Z2-7219
• Naslov: Od elastokaloričnega efekta do učinkovite hladilne naprave