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…

2021 Virtual Spring Meeting & Exhibit

Due to coronavirus epidemic, MRS ( Material Research Society ) Spring Meeting was again held virtually. Together with the research group from Twente Univeristy we presented thermal rectification with multilayer phase change materials: High Asymmetric Heat Transport in Multilayer Phase Change Materials. Apart from the lack of personal contact, pastries Read more…

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…

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…

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…

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…

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…

Applications on Magnetocaloric Materials: Encyclopedia of Smart Materials

In the extensive Encyclopedia of Smart Materials (Reference Module in Materials Science and Materials Engineering) a paper on Applications on magnetocaloric materials was published. The paper is available here. Abstract: The first market applications of magnetocaloric materials were in low-temperature physics and magnetic resonance imaging. These important applications, however, represent Read more…

E-MRS 2019 Fall Meeting

The 2019 E-MRS Fall Meeting was held in Warsaw University of Technology, from September 16th to 19th. There were more than 1000 participants from all over the world. The members of LAHDE presented our work in two contributions and invited lecture: Urban Tomc: Digital microfluidics in caloric cooling Using the Read more…