The Laboratory for Refrigeration and District Energy (LAHDE) won the three-year Cool BatMan project as a part of the M-ERA.NET tender entitled Battery Thermal Management System Based on High Power Density Digital Microfluidic Magnetocaloric Cooling (Cool BatMan). It is a consortium of 4 quality institutions where LAHDE acts as Read more…
In the article Towards powerful magnetocaloric devices with static electro-permanent magnets, published in the Journal of Advanced Research (IF 10.479), researchers from the Laboratory for Refrigeration and District Energy of the Faculty of Mechanical Engineering report on a new approach – the concept of an energy-efficient electro-permanent magnetic field Read more…
A paper on implementation of ferofluidic thermal switch in magnetocaloric device has been published in collaboration with colleagues from the University of Twente. The article was published in the journal iScience.
LAHDE Scientific annual report: Published papers MAIORINO, Angelo, DEL DUCA, Manuel Gesù, TOMC, Urban, TUŠEK, Jaka, KITANOVSKI, Andrej, APREA, Ciro. A numerical modelling of a multi-layer LaFeCoSi active magnetic regenerator by using artificial neural networks. Applied thermal engineering, ISSN 1359-4311. [Print ed.], Oct. 2021, vol. 197, str. 1-13, ilustr. https://www.sciencedirect. Read more…
We published research on condensation of water vapor from humid air inside vertical channels formed by flat plates in collaboration with researchers from Shanghai University.The research was published in iScience.Link: https://www.sciencedirect.com/science/article/pii/S2589004221015352AbstractCondensation of humid air is an important process in thermal and process engineering and a subject of many currently research-intensive Read more…
An investigation into the applicability of R450A as a replacement for R134a in heat pump tumble dryers was made in collaboration with Gorenje, d.o.o.This paper presents the results of an experimental study evaluating R450A as a possible drop-in replacement for R134a in household heat pump tumble dryers. A heat pump Read more…
The traditional Rector’s Award for the Best Innovation of the University of Ljubljana promotes innovation at the University of Ljubljana and helps innovators on their way to the market. The competition was divided into two categories: 1st category of students and alumni and 2nd category of researchers employed full-time at Read more…
The Public Research Agency of the Republic of Slovenia (ARRS) will finance a basic science project entitled TCCbuilder: An open-source simulation tool for thermal control circuits. The project was selected together with 12 other projects of the Faculty of Mechanical Engineering UL.The project concerns the development of World’s first numerical Read more…
We have published a research paper on preparation of metal-ceramic multi-layered composites using only the aerosol-deposition technique in collaboration with researchers from Josef Stefan Institute. The article was published in the journal Materials.
We have published a research paper on numerical modelling of multi-layered LaFeCoSi active magnetic regenerator by using artificial neural networks in collaboration with researchers from University of Salerno. The article was published in the journal Applied Thermal Engineering.
A paper on increasing thermal rectification using multi-layered materials has been published in collaboration with colleagues from the University of Twente. The article was published in the journal iScience.
Eurotherm CHC (Caloric Heating and Cooling) 2020 is another scientific seminar that was postponed from last year to 2021. It took place virtually between 13 and 15 July. The LAHDE laboratory participated in 4 conference papers and an invited lecture:Cool future: magnetocaloric devices based on static and rare earth free Read more…
The condensation of humid air is a crucial step in air conditioning and process engineering. However, the models that describe the condensation of vapour in the presence of a non-condensable gas require time-consuming numerical calculations that go beyond the Nusselt film theory. Only a small number of publications exist, where Read more…
Existing capillary tube models rely heavily on friction factor correlations, which enable the specification of the relative surface roughness. However, measuring the surface roughnesses of capillary tubes is a time consuming task, which requires specialized equipment. In this research we have developed a friction factor correlation, which does not Read more…
An extensive review of thermal management with fluidic and mechanical thermal control devices has been published in collaboration with colleagues from the University of Twente (Dr. Miguel Muñoz Rojo and Timm Swoboda). A review article published in the journal Advanced electronic materials (published by Wiley) presents the second of two Read more…
An extensive review of thermal management with thermal control devices based on solid-state physics phenomena has been published in collaboration with colleagues from the Universities of Twente (Dr. Miguel Muñoz Rojo and Timm Swoboda) and Stanford (Dr. Ananth Saran Yalamarthy). A review article published in the journal Advanced electronic materials Read more…
Low temperature district heating systems represent an important share of the future heating supply. Such systems utilize waste heat from different systems and the heat from renewable sources. Furthermore, they show a potential to be implemented as a link between various energy sectors. The low temperature level of the district Read more…
Within the ERC project SUPERCOOL and ARRS project J2-1738 we have developed a new, unique numerical model that serves as a tool for parametric analysis and the development of micro-cooling systems for cooling of electronic components based on electrocaloric and elastocaloric materials. An article entitled: Caloric micro-cooling: Numerical modeling and Read more…
The article was published in the Journal of Applied Physics and is available here.Thermal control elements, i.e., thermal diodes, switches, and regulators, can control the heat flow in an analogous way in how electronic devices control electrical currents. In particular, a thermal diode allows a larger heat flux in one Read more…
The latest research results of the ERC SUPERCOOL project were published in the paper Thin-walled Ni-Ti tubes under compression: ideal candidates for efficient and fatigue-resistant elastocaloric cooling in highly ranked journal Applied Matrials Today (IF 8.013). The paper is available here. Elastocaloric cooling is emerging as one of the most promising Read more…