Elektrokalorika

Elektrokalorično hlajenje

Numerični model elektrokalorične naprave

Kratek opis

Nova tehnologija hlajenja na principu fizike trdne snovi, posebno zanimiva za mikro-hlajenje,
lahko omogoča višje učinkovitosti in uporablja neškodljiva hladilna sredstva.

Naše delo obsega

razvoj regenerativnih elektrokaloričnih naprav,
meritve elektrokaloričnega učinka in življenjske dobe (utrujanja) elektrokaloričnih elementov,
razvoj elektrokaloričnih mikro-hladilnih naprav.

Elektrokalorično hlajenje temelji na elektrokaloričnemu učinku; fenomenu pri katerem v določenih materialih pride do povračljive temperaturne spremembe, ko je podvržen hipni spremembi električnega polja. Poznamo keramične in polimerne elektrokalorične materiale, pri čemer so oboji okolju prijazni. Največja prednost elektrokalorične tehnologije je, da ne uporablja gibljivih delov, zaradi česar je delovanje tiho in brez vibracij. Elektrokalorični elementi so neodvisni od velikosti in zaradi tega posedujejo velik potencial za uporabo pri hlajenju v širokem spektru aplikacij od mikroelektronike in mikrorobotike, do večjih naprav v industriji in energetiki ter celo vesoljski tehnologiji.

Kontakt

Strokovnjaki na področju

prof. dr. Andrej Kitanovski

Nedavne objave

Znanstveni članki
1. ŠADL, Matej, TOMC, Urban, URŠIČ NEMEVŠEK, Hana. Investigating the feasibility of preparing metal-ceramic multi-layered composites using only the aerosol-deposition technique. Materials, ISSN 1996-1944, Aug. 2021, vol. 14, iss. 16, pp. 4548-1-4548-10, ilustr. https://www.mdpi.com/1996-1944/14/16/4548, doi: 10.3390/ma14164548
2. MASCHE, M., IANNICIELLO L., TUŠEK J., ENGELBRECHT K. Impact of hysteresis on caloric cooling performance. International Journal of Refrigeration, 121 (2021), 302-312. doi.org/10.1016/j.ijrefrig.2020.10.012
3. KALIZAN, Jan, TUŠEK, Jaka. Caloric Micro-Cooling: Numerical modelling and parametric investigation. Energy Conversion and Management. September 2020, vol. 225, 113421. DOI: doi.org/10.1016/j.enconman.2020.113421
4. DEL DUCA, Manuel Gesù, TUŠEK, Jaka, MAIORINO, Angelo, FULANOVIĆ, Lovro, BRADEŠKO, Andraž, PLAZNIK, Uroš, MALIČ, Barbara, APREA, Ciro, KITANOVSKI, Andrej. Comprehensive evaluation of electrocaloric effect and fatigue behavior in the 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 bulk relaxor ferroelectric ceramic. Journal of Applied Physics, September 2020, vol 128, 104102. DOI: https://doi.org/10.1063/5.0003250
5. PLAZNIK, Uroš, VRABELJ, Marko, KUTNJAK, Zdravko, MALIČ, Barbara, ROŽIČ, Brigita, POREDOŠ, Alojz, KITANOVSKI, Andrej. Numerical modelling and experimental validation of a regenerative electrocaloric cooler. International journal of refrigeration. [Print ed.]. Feb. 2019, vol. 98, str. 139-149, ilustr. ISSN 0140-7007. DOI: 10.1016/j.ijrefrig.2018.10.029
6. PLAZNIK, Uroš, KITANOVSKI, Andrej, ROŽIČ, Brigita, MALIČ, Barbara, URŠIČ NEMEVŠEK, Hana, DRNOVŠEK, Silvo, CILENŠEK, Jena,VRABELJ, Marko, POREDOŠ, Alojz, KUTNJAK, Zdravko. Bulk relaxor ferroelectric ceramics as a working body for an electrocaloric cooling device. Applied physics letters. [Print ed.]. 2015, vol. 106, nr. 4, str. 1-4, ilustr. ISSN 0003-6951. DOI: 10.1063/1.4907258
7. PLAZNIK, Uroš, VRABELJ, Marko, KUTNJAK, Zdravko, MALIČ, Barbara, POREDOŠ, Alojz, KITANOVSKI, Andrej. Electrocaloric cooling: the importance of electric-energy recovery and heat regeneration. Europhysics letters : EPL. 2015, vol. 111, nr. 5, str. 57009-1-57009-6, ilustr. ISSN 0295-5075. DOI: 10.1209/0295-5075/111/57009
8. KITANOVSKI, Andrej, PLAZNIK, Uroš, TOMC, Urban, POREDOŠ, Alojz. Present and future caloric refrigeration and heat-pump technologies. International journal of refrigeration. [Print ed.]. Sept. 2015, vol. , str. 288-298, ilustr. ISSN 0140-7007, DOI: 10.1016/j.ijrefrig.2015.06.008.
9. OŽBOLT, Marko, KITANOVSKI, Andrej, TUŠEK, Jaka, POREDOŠ, Alojz. Electrocaloric vs. magnetocaloric energy conversion. International journal of refrigeration. [Print ed.]. Jan. 2014, vol. 37, str. 16-27, ilustr. ISSN 0140-7007. DOI: 10.1016/j.ijrefrig.2013.07.001
10. OŽBOLT, Marko, KITANOVSKI, Andrej, TUŠEK, Jaka, POREDOŠ, Alojz. Electrocaloric refrigeration : thermodynamics, state of theart and future perspectives. International journal of refrigeration. [Print ed.]. Apr. 2014, vol. 40, str. 174-188, ilustr. ISSN 0140-7007. DOI: 10.1016/j.ijrefrig.2013.11.007
Prispevki na konferencah
1. KITANOVSKI, Andrej. Thermal control elements for caloric technologies : 2020 virtual MRS Spring/Fall Meeting & Exhibit, November 27 – December 4, 2020
2. A regenerative electrocaloric cooling device : numerical modelling and experimental validation. Caloric materials for highly efficient cooling applications. MRS fall meeting, Boston, USA, November 25-30, 2018.
3. Relaxor ceramic refrigerant elements for a regenerative dielectric cooler. The 6th International Workshop on Relaxor Ferroelectrics, IWRF-2018, July 17-21, 2018, Vancouver, British Columbia, Canada.
4. Caloricmaterials for new greener heat management technologies. Abstract book. 2nd International Material Sciences and Engineering for Green Energy Conference, MSEGEC 2018, April 25-27, 2018, Rabat.
5. Methods for enhanced and fast heat transfer in electrocalorics. 53rd International Conference on Microelectronics, Devices and Materials & the Workshop on Materials for Energy Conversionand their Applications: Electrocalorics and Thermoelectrics, October 4 – October 6, 2017, Ljubljana, Slovenia.
6. Perovskite relaxor multiferroics in novel dielectric cooling designs. Book of abstracts. IMF 2017, The Fourteenth International Meeting on Ferroelectricity, September 4th – 8th, 2017, San Antonio, Texas, USA.
7. Energy efficiency of electrocaloric cooling : material and cooling-system considerations. 2016 joint IEEE ISAF-ECAPD-PMF 2016. International Symposium on Applications of Ferroelectrics (ISAF), European Conference on the Applications of Polar Dielectrics(ECAPD), Workshop on Piezoresponse Force Microscopy (PMF), August 21-25, 2016, Darmstadt, Germany. Darmstadt: Technische Univetität,2016.
8. Relaxor ferroelectric ceramics as a working body for an electrocaloric cooling devices. Electronic Materials and Applications 2016, [EMA 2016] : January 20-22, 2016 Orlando, FL : conference program. [S. l.]: The American Ceramic Society, 2016.
9. Bulk relaxor ferroelectric ceramics as working elements in an electrocaloric cooling device. Energy materials nanotechnology : program & abstracts : EMN Meeting on Ceramics, January 25-28, 2016, Hong Kong.
10. Bulk ceramics Pb(Mg1/3Nb2/3)O3−PbTiO3Pb(Mg1/3Nb2/3)O3−PbTiO3 as a working body for an electrocaloric cooling device. Materials challenges in alternative & renewable energy : conference program : April 17-21, 2016, Clearwater, Florida, USA.
11. Bulk relaxor ferroelectric ceramics as refrigerant elements in a dielectric cooling device. MS & T17, Materials Science & Technology : Technical Meeting and Exhibition, October 23-27, 2016, Salt Lake City, Utah, USA.
12. Heat transfer methods in electrocaloric cooling devices. Piezo 2015 : Electroceramics for End-Users VIII, 25-28 January 2015, Maribor, Slovenia .
13. Relaxor ceramics for new dielectric cooling technology. In: Technical meeting and exhibition : MS & T15, Materials Science & Technology 2015, October 4-8, 2015, Columbus, OH, USA.
14. Electrocaloric refrigeration and heat pumping : from theory to applications. In: ICR2015 : improving quality of life, preserving the Earth. The 24th IIR International Congress of Refrigeration, August 16 – 22, 2015, Yokohama, Japan.
15. Present and future solid state energy conversion technologies. ECOS 2015. 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems,Pau, France. Pau: Université de Pau et des Pays de l’Adour, 2015.
16. Recent developments in electrocaloric refrigeration. ECOS 2014. 27th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems,Turku, Finland, June 15-19, 2014. Turku: Åbo Akademi University, 2014. Str. 1-12, ilustr.
17. Small scale electrocaloric cooling devicewith an active heat regenerator. In: Thermag VI : proceedings. 6th International Conference on Magnetic Refrigeration, Victoria, BC, Sept 7-10, 2014.
18. Numerical study of an electrocaloric coolingdevice. IBook of abstracts. European Conference on Materials and Technologies for Sustainable Growth, Bled, 19. -21, September 2013. Nova Gorica: University, 2013.
19. New solid state refrigeration technologies. ECOS 2013. 26th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems,Guilin, 2013. Guilin: Chinese Society of Engineering Thermophysics, cop. 2013
20. The electrocaloric versus magnetocaloric energy conversion. 5th International Conference on Magnetic Refrigeration at Room Temperature, Grenoble, France, September 17-20, 2012 = 5e Conférence internationale sur le Froid magnétique à température ambiante, Grenoble, France, September 17-20, 2012. 5th International Conference on Magnetic Refrigeration at Room Temperature, Grenoble, France, September 17-20, 2012. Paris:International Institute of Refrigeration, 2012. Str. 397-404, ilustr. Thermag, 5.
Projekti
1. Multicaloric cooling (2018-2021) (Slovenian research agency), PI: prof. dr. Hana Uršič Nevemšek (IJS): http://www.sicris.si/public/jqm/prj.aspx?lang=eng&opdescr=grpSearch&opt=2&subopt=400&code1=grp&code2=nameadvanced&psize=1&hits=1&page=1&count=&search_term=name=%20and%20sci=2%20and%20fil=13%20and%20sub=05&id=17298&slng=&order_by=
2. Advanced electrocaloric energy conversion (2016-2019) (Slovenian research agency), PI: prof. dr. Andrej Kitanovski: http://www.sicris.si/public/jqm/prj.aspx?lang=slv&opdescr=grpSearch&opt=2&subopt=400&code1=grp&code2=nameadvanced&psize=1&hits=1&page=1&count=&search_term=name=%20and%20sci=2%20and%20fil=13%20and%20sub=05&id=10051&slng=&order_by=
3. Micro-electromechanical and electrocaloric layer elements (2014-2017) (Slovenian research agency), PI: prof. dr. Barbara Malič (IJS): http://www.sicris.si/public/jqm/prj.aspx?lang=slv&opdescr=grpSearch&opt=2&subopt=400&code1=grp&code2=nameadvanced&psize=1&hits=1&page=1&count=&search_term=name=%20and%20sci=2%20and%20fil=13%20and%20sub=05&id=9335&slng=&order_by=
4. New electrocaloric materials for an environmentally friendly dielectric cooling technology (2014-2017) (Slovenian research agency), PI: prof. dr. Zdravko Kutnjak (IJS): http://www.sicris.si/public/jqm/prj.aspx?lang=slv&opdescr=grpSearch&opt=2&subopt=400&code1=grp&code2=nameadvanced&psize=1&hits=1&page=1&count=&search_term=name=%20and%20sci=2%20and%20fil=13%20and%20sub=05&id=9284&slng=&order_by=
Patenti in patentne aplikacije

MALIČ, Barbara, URŠIČ NEMEVŠEK, Hana, KOSEC, Marija, DRNOVŠEK, Silvo, CILENŠEK, Jena, KUTNJAK, Zdravko, ROŽIČ, Brigita, FLISAR,Uroš, KITANOVSKI, Andrej, OŽBOLT, Marko, PLAZNIK, Uroš, POREDOŠ, Alojz, TOMC, Urban, TUŠEK, Jaka. Method for electrocaloric energy conversion : United States Patent US9915446 (B2), 2018-03-13. [S. l.]: Unated States Patent and Trademark Office, 2018. [16] f., ilustr. [COBISS.SI-ID 29642791] patentna družina: US2016187034 (A1), 2016-06-30; EP20130179000, 2013-08-01; EP3027980 (B1), 2017-10-18; EP3027980 (A1), 2016-06-08;CN105593616 (B), 2017-12-26; CN105593616 (A), 2016-05-18; PL3027980 (T3), 2018-04-30; WO2015014853 (A1), 2015-02-05

Nedavne novice

25 septembra, 2024

Elektrokalorika

Elektrokalorično hlajenje

Kratek opis

Naše delo obsega

Strokovnjaki na področju

Nedavne objave

Nedavne novice

Konferenca Calorics 2024, Cambridge

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