229 citations · 502 across the 7 of their papers we have counts for
7 papers
MagTense: a micromagnetic framework using the analytical demagnetization tensor
R. Bjørk, E. B. Poulsen, K. K. Nielsen +1
We present the open source micromagnetic framework, MagTense, which utilizes a novel discretization approach of rectangular cuboid or tetrahedron geometry "tiles" to analytically c…
The magnetic field from a homogeneously magnetized cylindrical tile
K. K. Nielsen, R. Bjørk
The magnetic field of a homogeneously magnetized cylindrical tile geometry, i.e. an angular section of a finite hollow cylinder, is found. The field is expressed as the product bet…
The stray- and demagnetizing field from a homogeneously magnetized tetrahedron
Kaspar K. Nielsen, Andrea R. Insinga, Rasmus Bjørk
The stray- and demagnetization tensor field for a homogeneously magnetized tetrahedron is found analytically. The tetrahedron is a special case of four triangular faces with consta…
The maximum theoretical performance of unconcentrated solar photovoltaic and thermoelectric generator systems
Rasmus Bjørk, Kaspar K. Nielsen
The maximum efficiency for photovoltaic (PV) and thermoelectric generator (TEG) systems without concentration is investigated. Both a combined system where the TEG is mounted direc…
The lifetime cost of a magnetic refrigerator
R. Bjørk, C. R. H. Bahl, K. K. Nielsen
The total cost of a 25 W average load magnetic refrigerator using commercial grade Gd is calculated using a numerical model. The price of magnetocaloric material, magnet material a…
The performance of a combined solar photovoltaic (PV) and thermoelectric generator (TEG) system
R. Bjørk, K. K. Nielsen
The performance of a combined solar photovoltaic (PV) and thermoelectric generator (TEG) system is examined using an analytical model for four different types of commercial PVs and…
Magnetic cooling at Risoe DTU
K. K. Nielsen, R. Bjoerk, J. B. Jensen +5
Magnetic refrigeration at room temperature is of great interest due to a long-term goal of making refrigeration more energy-efficient, less noisy and free of any environmentally ho…