PUBLICATIONS - Laboratory for refrigeration and district energy - Page 2

PUBLICATIONS

Condensation of water vapor from humid air inside vertical channels formed by flat plates

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…

By lahde, 4 years4 years ago

PUBLICATIONS

Evaluating R450A as a drop-in replacement for R134a in household heat pump tumble dryers

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…

By lahde, 4 years4 years ago

PUBLICATIONS

Rector’s Award for the best innovation 2021 for EASE

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…

By lahde, 4 years4 years ago

PUBLICATIONS

ARRS will (co-)finance TCCbuilder research project

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…

By lahde, 4 years4 years ago

PUBLICATIONS

Investigating the Feasibility of Preparing Metal-Ceramic Multi-Layered Composites Using Only the Aerosol-Deposition Technique

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.

By lahde, 4 years ago

PUBLICATIONS

Numerical modelling of active magnetic regenerator by using artificial neural networks

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.

By lahde, 4 years4 years ago

PUBLICATIONS

Thermal rectification using multi-layered materials

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.

By lahde, 4 years4 years ago

CONFERENCES

CHC Caloric Heating and Cooling seminar, Twente 2020

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…

By lahde, 4 years4 years ago

PUBLICATIONS

Performance of the Condensation Process on Vertical Plates and Horizontal Tubes

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…

By lahde, 5 years5 years ago

PUBLICATIONS

Impact of neglecting the variations in the relative surface roughnesses of capillary tubes on the accuracy of a capillary tube model

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…

By lahde, 5 years5 years ago

PUBLICATIONS

Fluidic and mechanical thermal control devices

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…

By lahde, 5 years4 years ago

PUBLICATIONS

Solid-state thermal control devices

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…

By lahde, 5 years5 years ago

PUBLICATIONS

MagBoost: Magnetocaloric booster micro-heat pump for district heating system

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…

By lahde, 5 years5 years ago

PUBLICATIONS

Caloric micro-cooling

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…

By lahde, 5 years5 years ago

PUBLICATIONS

Toward a solid-state thermal diode for room-temperature magnetocaloric energy conversion

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…

By lahde, 6 years6 years ago

PUBLICATIONS

Thin-walled Ni-Ti tubes under compression: ideal candidates for efficient and fatigue-resistant elastocaloric cooling

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…

By lahde, 6 years6 years ago

PUBLICATIONS

A Shell Finite Element Model for Superelasticity of Shape Memory Alloys

The latest research results of the ERC SUPERCOOL project were published in the chapter A Shell Finite Element Model for Superelasticity of Shape Memory Alloys of the book entitled Analysis of Shells, Plates, and Beams. The chapter is available here.

By lahde, 6 years6 years ago

PUBLICATIONS

Two-phase flow patterns in adiabatic refrigerant flow through capillary tubes

Recently published paper in International Journal of Refrigeration reports on flow visualization of the refrigerant R600a through a capillary tube (link). (Open access link (50 days)) Abstract: This paper presents the results of an experimental study of the flow visualization of the refrigerant R600a through a capillary tube with Read more…

By lahde, 6 years6 years ago

PUBLICATIONS

Numerical and experimental investigation of roll-bond heat exchangers in ST, PV and PV/T modules (Energy Conversion and Management journal, IF 7.181)

The article: Numerical and experimental investigation of the energy and exergy performance of solar thermal, photovoltaic and photovoltaic-thermal modules based on roll-bond heat exchangers has been published in Energy Conversion and Management journal (IF = 7.181, 2019, top 5%). Link to the article*: https://authors.elsevier.com/c/1akEjin8VZz4e. Abstract: This paper presents Read more…

By lahde, 6 years6 years ago

PUBLICATIONS

Advanced Energy Materials: Energy Applications of Magnetocaloric Materials

Along with environmentally-friendly refrigerants, high energy efficiency of refrigeration systems and heat pumping will represent the foundation of future refrigeration, heating and air-conditioning systems. Recuperation and utilization of waste heat at various temperature levels will enable significantly lower energy consumption not only for heating and refrigeration, but also for generation Read more…

By lahde, 6 years6 years ago