Rasmus Bjørk

Rasmus Bjørk

Sektionsleder

DTU ENERGI
Institut for Energikonvertering og -lagring

Danmarks Tekniske Universitet

Frederiksborgvej 399

Bygning 779, rum S20

4000 Roskilde

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2019
 

Hvis den private sektor virkelig mangler talent, så kom og hent det på universiteterne

Bjørk, Rasmus ; Dalsgaard, Peter ; Dimke, Henrik Anthony ; Pedersen, Bjørn Panyella ; Ravnsbæk, Dorthe ; Sørensen, Thomas Just

Type: Net publication - Internet publication

Status: Published     |    År: 2019

 

The age at which Noble Prize research is conducted

Bjørk, R.
in: Scientometrics, vol: 119, issue: 2, pages: 931-939

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1007/s11192-019-03065-4

 

The demagnetization factor for randomly packed spheroidal particles

Bjørk, R. ; Zhou, Z.
in: Journal of Magnetism and Magnetic Materials, vol: 476, pages: 417-422

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1016/j.jmmm.2019.01.005

 

The effect of gelation on statically and dynamically freeze‐cast structures

Christiansen, Cathrine D. ; Nielsen, Kaspar K. ; Bordia, Rajendra K. ; Bjørk, Rasmus
in: Journal of the American Ceramic Society, vol: 102, issue: 10, pages: 5796-5806

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2019     |    DOI: https://doi.org/10.1111/jace.16500

 

Unge forskere kritiserer strategi: Pionercentre favoriserer få forskere

Bjørk, Rasmus ; Dalsgaard, Peter ; Dimke, Henrik Anthony ; Møller, Niels Martin ; Niss, Kristine ; Pedersen, Bjørn Panyella ; Sørensen, Thomas Just
in: Altinget

Type: Contribution to newspaper - Comment/debate

Status: Published     |    År: 2019

2018
 

A topology optimized switchable permanent magnet system

Bjørk, R. ; Insinga, A. R.
in: Journal of Magnetism and Magnetic Materials, vol: 465, pages: 106-113

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1016/j.jmmm.2018.05.076

  PDF

Freeze-casting to create create directional micro-channels in regenerators for magnetic refrigeration

Christiansen, Cathrine Deichmann ; Nielsen, Kaspar Kirstein ; Bjørk, Rasmus
part of: 8th International Conference on Caloric Cooling (Thermag VIII), pages: 96-101, 2018, International Institute of Refrigeration
Presented at:
Thermag VIII - International Conference on Caloric Cooling (2018)

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2018

 

Topology Optimization of Segmented Thermoelectric Generators

Lundgaard, Christian ; Sigmund, Ole ; Bjørk, Rasmus
in: Journal of Electronic Materials, vol: 47, issue: 12, pages: 6959–6971

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: https://doi.org/10.1007/s11664-018-6606-x

 

Unge akademikere: Politiske prioriteringer udsulter grundforskningen

Bjørk, Rasmus ; Dalsgaard, Peter ; Dimke, Henrik ; Engberg-Pedersen, Anders ; Niss, Kristine ; Panyella Pedersen, Bjørn ; Sørensen, Thomas Just

Type: Net publication - Internet publication

Status: Published     |    År: 2018

2017
  PDF

Freeze-casting to create micro-channels in La0.66Ca0.33xSrxMn1.05O3

Christiansen, C. D. ; Nielsen, K. K. ; Bordia, R. K. ; Bjørk, R.
Presented at:
International Conference on Sintering 2017

Type: Poster

Status: Published     |    År: 2017

  PDF

Influence of magnetization on the applied magnetic field in various AMR regenerators

Mira, A. ; de Larochelambert, T. ; Espanet, C. ; Giurgea, S. ; Nika, P. ; Bahl, Christian ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein
in: Journal of Applied Physics, vol: 122, issue: 13

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1063/1.4986936

  PDF

Modeling a material from packing, through sintering and to the final microstructural properties

Bjørk, Rasmus ; Nielsen, Kaspar Kirstein
Presented at:
International Conference on Sintering 2017

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2017

  PDF

Operational test of bonded magnetocaloric plates

Bahl, Christian ; Navickaité, Kristina ; Neves Bez, Henrique ; Lei, Tian ; Engelbrecht, Kurt ; Bjørk, Rasmus ; Li, Ke ; Li, Zhenxing ; Shen, Jun ; Dai, Wei ; Jia, Jichen ; Wu, Yuanyuan ; Long, Yi ; Hu, Fengxia ; Shen, Baogen
in: International Journal of Refrigeration, vol: 76, pages: 245-251

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1016/j.ijrefrig.2017.02.016

 

Reply to "Comment on 'Performance of Halbach magnet with finite coercivity'"

Insinga, Andrea Roberto ; Bahl, Christian ; Bjørk, Rasmus ; Smith, A.
in: Journal of Magnetism and Magnetic Materials, vol: 429, pages: 386-389

Type: Comment/debate

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1016/j.jmmm.2016.11.085

  PDF

Spatially resolved modelling of inhomogeneous materials with a first order magnetic phase transition

Nielsen, Kaspar Kirstein ; Bahl, Christian ; Smith, Anders ; Bjørk, Rasmus
in: Journal of Physics D: Applied Physics, vol: 50, issue: 41

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1088/1361-6463/aa86e2

 

The maximum theoretical performance of unconcentrated solar photovoltaic and thermoelectric generator systems

Bjørk, Rasmus ; Nielsen, Kaspar Kirstein
in: Energy Conversion and Management, vol: 156, pages: 264-268

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1016/j.enconman.2017.11.009

  PDF

Topology optimized permanent magnet systems

Bjørk, Rasmus ; Bahl, Christian ; Insinga, Andrea Roberto
in: Journal of Magnetism and Magnetic Materials, vol: 437, pages: 78-85

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: https://doi.org/10.1016/j.jmmm.2017.04.028

 

Undervisere: Her er de fem største problemer med studenterevalueringer

Dalsgaard, Peter ; Bille, Mikkel ; Bjørk, Rasmus ; Dalsgaard, Steffen ; Dimke, Henrik ; Gram-Skjoldager, Karen ; Zinner, Nikolaj Thomas
in: Altinget.dk, vol: 31.10.2017

Type: Contribution to newspaper - Comment/debate

Status: Published     |    År: 2017

  PDF

Unge forskere: Slip ph.d.-uddannelsen fri

Sørensen, Thomas Just ; Bjørk, Rasmus ; Zinner, Nikolaj Thomas ; Dalsgaard, Peter ; Niss, Kristine ; Jauffred, Liselotte
in: Altinget.dk, vol: 20.06.2017

Type: Contribution to newspaper - Comment/debate

Status: Published     |    År: 2017

2016
  PDF

An Analytical Model for the Influence of Contact Resistance on Thermoelectric Efficiency

Bjørk, Rasmus
in: Journal of Electronic Materials, vol: 45, issue: 3, pages: 1301-1308

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1007/s11664-015-4014-z

  PDF

A thermoelectric power generating heat exchanger: Part I – Experimental realization

Bjørk, Rasmus ; Sarhadi, Ali ; Pryds, Nini ; Lindeburg, N. ; Viereck, P.
in: Energy Conversion and Management, vol: 119, pages: 473–480

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1016/j.enconman.2016.04.042

 

A thermoelectric power generating heat exchanger: Part II – Numerical modeling and optimization

Sarhadi, Ali ; Bjørk, Rasmus ; Lindeburg, N. ; Viereck, P. ; Pryds, Nini
in: Energy Conversion and Management, vol: 119, pages: 481–487

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1016/j.enconman.2016.04.052

  PDF

Comparing superconducting and permanent magnets for magnetic refrigeration

Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Bahl, C. R. H. ; Smith, Anders ; Wulff, Anders Christian
in: A I P Advances, vol: 6, issue: 5

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1063/1.4943305

  PDF

Effects of flow balancing on active magnetic regenerator performance

Eriksen, Dan ; Engelbrecht, Kurt ; Bahl, Christian ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein
in: Applied Thermal Engineering, vol: 103, pages: 1-8

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1016/j.applthermaleng.2016.03.001

  PDF

Exploring the efficiency potential for an active magnetic regenerator

Eriksen, Dan ; Engelbrecht, Kurt ; Haffenden Bahl, Christian Robert ; Bjørk, Rasmus
in: Science and Technology for the Built Environment, vol: 22, issue: 5, pages: 527-533

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1080/23744731.2016.1173495

  PDF

Generating the optimal magnetic field for magnetic refrigeration

Bjørk, Rasmus ; Insinga, Andrea Roberto ; Smith, Anders ; Bahl, Christian
part of: Proceedings of the 7th IIF-IIR International Conference on Magnetic Refrigeration, 2016, International Institute of Refrigeration
Presented at:
7th IIF-IIR International Conference on Magnetic Refrigeration

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2016

  PDF

Globally Optimal Segmentation of Permanent-Magnet Systems

Insinga, Andrea Roberto ; Bjørk, Rasmus ; Smith, Anders ; Bahl, Christian
in: Physical Review Applied, vol: 5, issue: 6

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1103/PhysRevApplied.5.064014

  PDF

Optimally segmented magnetic structures

Insinga, Andrea Roberto ; Bahl, Christian ; Bjørk, Rasmus ; Smith, Anders
Presented at:
13th Joint MMM-Intermag Conference

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2016

  PDF

Optimally segmented permanent magnet structures

Insinga, Andrea Roberto ; Bjørk, Rasmus ; Smith, Anders
in: I E E E Transactions on Magnetics, vol: 52, issue: 12

Type: Conference article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1109/TMAG.2016.2593685

 

Performance of Halbach magnet arrays with finite coercivity

Insinga, Andrea Roberto ; Bahl, C.R.H. ; Bjørk, Rasmus ; Smith, Anders
in: Journal of Magnetism and Magnetic Materials, vol: 407, pages: 369-376

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1016/j.jmmm.2016.01.076

  PDF

The lifetime cost of a magnetic refrigerator

Bjørk, Rasmus ; Bahl, Christian R.H. ; Nielsen, Kaspar Kirstein
in: International Journal of Refrigeration, vol: 63, pages: 48–62

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1016/j.ijrefrig.2015.08.022

  PDF

The magnetic properties of the hollow cylindrical ideal remanence magnet

Bjørk, Rasmus
in: Journal of Magnetism and Magnetic Materials, vol: 416, pages: 321-324

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2016     |    DOI: https://doi.org/10.1016/j.jmmm.2016.05.034

2015
  PDF

Comparing superconducting and permanent magnets for magnetic refrigeration

Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Bahl, Christian R.H. ; Smith, Anders ; Wulff, Anders Christian
part of: Book of Abstracts. DTU's Sustain Conference 2015, 2015, Technical University of Denmark (DTU), Lyngby
Presented at:
DTU Sustain Conference 2015

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    År: 2015

 

Design and experimental tests of a rotary active magnetic regenerator prototype

Eriksen, Dan ; Engelbrecht, Kurt ; Bahl, Christian ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Insinga, Andrea Roberto ; Pryds, Nini
in: International Journal of Refrigeration, vol: 58, pages: 14-21

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1016/j.ijrefrig.2015.05.004

  PDF

Direct measurements of the magnetic entropy change

Nielsen, Kaspar Kirstein ; Neves Bez, Henrique ; von Moos, Lars ; Bjørk, Rasmus ; Eriksen, Dan ; Bahl, Christian
in: Review of Scientific Instruments, vol: 86, issue: 10

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1063/1.4932308

  PDF

Experimental Studies with an Active Magnetic Regenerating Refrigerator

Eriksen, Dan ; Engelbrecht, Kurt ; Bahl, Christian ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Insinga, Andrea Roberto ; Dallolio, Stefano ; Pryds, Nini
part of: Proceedings of the 24th IIR International Congress of Refrigeration, 2015, International Institute of Refrigeration
Presented at:
24th IIR International Congress of Refrigeration

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2015

  PDF

Hybrid TEG-heat exchanger module for electrical power production

Sarhadi, Ali ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Pryds, Nini
Presented at:
34th Annual International Conference on Thermoelectrics (ICT 2015) and 13th European conference on Thermoelectrics (ECT 2015)

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2015

 

Modeling constrained sintering of bi-layered tubular structures

Tadesse Molla, Tesfaye ; Kothanda Ramachandran, Dhavanesan ; Ni, De Wei ; Esposito, Vincenzo ; Teocoli, Francesca ; Olevsky, Eugene A. ; Bjørk, Rasmus ; Pryds, Nini ; Kaiser, Andreas ; Frandsen, Henrik Lund
in: Journal of the European Ceramic Society, vol: 35, issue: 3, pages: 941–950

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1016/j.jeurceramsoc.2014.10.010

  PDF

Modeling the Microstructural Evolution During Constrained Sintering

Bjørk, Rasmus ; Frandsen, Henrik Lund ; Pryds, Nini
in: Journal of the American Ceramic Society, vol: 98, issue: 11, pages: 3490–3495

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1111/jace.13701

  PDF

Modelling of thermoelectric generators for satellite application

Rezania, A. ; Wijesekara , Waruna ; Rosendahl, Lasse ; Van Nong, Ngo ; Bjørk, Rasmus ; Katenbrink, Nils
part of: Book of Abstracts - 34th Annual International Conference on Thermoelectrics (ICT 2015) and 13th European conference on Thermoelectrics (ECT 2015), 2015
Presented at:
34th Annual International Conference on Thermoelectrics (ICT 2015) and 13th European conference on Thermoelectrics (ECT 2015)

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    År: 2015

  PDF

Optimization of Permanent Magnet Assemblies

Insinga, Andrea Roberto ; Bjørk, Rasmus ; Smith, Anders ; Bahl, Christian R.H.
Presented at:
Delft Days on Magneto Calorics

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2015

  PDF

Optimization of Permanent Magnet Assemblies

Insinga, Andrea Roberto ; Bjørk, Rasmus ; Smith, Anders ; Bahl, Christian R.H.
Presented at:
Delft Days on Magneto Calorics

Type: Poster

Status: Published     |    År: 2015

 

Optimization of the Mechanical and Electrical Performance of a Thermoelectric Module

Sarhadi, Ali ; Bjørk, Rasmus ; Pryds, Nini
in: Journal of Electronic Materials, vol: 44, issue: 11, pages: 4465-4472

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1007/s11664-015-3977-0

 

Segmented Thermoelectric Oxide-Based Module for High-Temperature Waste Heat Harvesting

Le, Thanh Hung ; Van Nong, Ngo ; Han, Li ; Bjørk, Rasmus ; Pham, Hoang Ngan ; Holgate, Tim ; Balke, Benjamin ; Snyder, Gerald Jeffrey ; Linderoth, Søren ; Pryds, Nini
in: Energy Technology, vol: 3, issue: 11, pages: 1143–1151

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1002/ente.201500176

  PDF

The efficiency and the demagnetization field of a general Halbach cylinder

Bjørk, Rasmus ; Smith, Anders ; Bahl, C.R.H.
in: Journal of Magnetism and Magnetic Materials, vol: 384, pages: 128-132

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1016/j.jmmm.2015.02.034

  PDF

The performance of a combined solar photovoltaic (PV) and thermoelectric generator (TEG) system

Bjørk, Rasmus ; Nielsen, Kaspar Kirstein
in: Solar Energy, vol: 120, pages: 187–194

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015

  PDF

The Total Lifetime Cost of a Magnetic Refrigerator

Bjørk, Rasmus ; Bahl, Christian ; Nielsen, Kaspar Kirstein
Presented at:
Delft Days on Magnetocalorics 2015

Type: Poster (Peer reviewed)

Status: Published     |    År: 2015

  PDF

The universal influence of contact resistance on TEG efficiency

Bjørk, Rasmus
part of: Book of Abstracts. International Conference on Thermoelectrics (ICT) 2015, 2015
Presented at:
34th Annual International Conference on Thermoelectrics (ICT 2015) and 13th European conference on Thermoelectrics (ECT 2015)

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    År: 2015

  PDF

The Universal Influence of Contact Resistance on the Efficiency of a Thermoelectric Generator

Bjørk, Rasmus
in: Journal of Electronic Materials, vol: 44, issue: 8, pages: 2869-2876

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2015     |    DOI: https://doi.org/10.1007/s11664-015-3731-7

2014
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Analysis of the internal heat losses in a thermoelectric generator

Bjørk, Rasmus ; Christensen, Dennis Valbjørn ; Eriksen, Dan ; Pryds, Nini
in: International Journal of Thermal Sciences, vol: 85, pages: 12-20

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1016/j.ijthermalsci.2014.06.003

  PDF

Design and initial testing of a compact and efficient rotary AMR prototype

Eriksen, Dan ; Engelbrecht, Kurt ; Bahl, Christian R.H. ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Pryds, Nini
part of: Proceedings of the 6th IIF-IIR international Conference on Magnetic Refrigeration, 2014, International Institute of Refrigeration
Presented at:
6th IIR/IIF International Conference on Magnetic Refrigeration

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2014

 

Design of thermoelectric modules for both mechanical reliability and performance using FE simulation

Sarhadi, Ali ; Bjørk, Rasmus ; Pryds, Nini
Presented at:
International Conference on Thermoelectrics 2014

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2014

 

Development and experimental results from a 1 kW prototype AMR

Bahl, Christian R.H. ; Engelbrecht, Kurt ; Eriksen, Dan ; Lozano, Jaime ; Bjørk, Rasmus ; Geyti, Jørgen ; Nielsen, Kaspar Kirstein ; Smith, Anders ; Pryds, Nini
in: International Journal of Refrigeration, vol: 37, pages: 78-83

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1016/j.ijrefrig.2013.09.001

  PDF

Direct measurements of the magnetocaloric effect

Nielsen, Kaspar Kirstein ; Bahl, Christian R.H. ; Neves Bez, Henrique ; Bjørk, Rasmus ; von Moos, Lars ; Eriksen, Dan
part of: Proceedings of the 6th IIF-IIR international Conference on Magnetic Refrigeration, 2014, International Institute of Refrigeration
Presented at:
6th IIR/IIF International Conference on Magnetic Refrigeration

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2014

 

Finite element modeling of camber evolution during sintering of bi-layers

Tadesse Molla, Tesfaye ; Ni, De Wei ; Bulatova, Regina ; Bjørk, Rasmus ; Bahl, Christian R.H. ; Pryds, Nini ; Frandsen, Henrik Lund
in: Journal of the American Ceramic Society, vol: 97, issue: 9, pages: 2965–2972

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1111/jace.13025

  PDF

Modeling the microstructural evolution during constrained sintering

Bjørk, Rasmus ; Frandsen, Henrik Lund ; Pryds, Nini
Presented at:
International Conference on SINTERING 2014

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    År: 2014

  PDF

Modeling the microstructural evolution during constrained sintering

Bjørk, Rasmus ; Frandsen, Henrik Lund ; Pryds, Nini
part of: Proceedings of the International Conference on SINTERING 2014, 2015
Presented at:
International Conference on SINTERING 2014

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2014

 

Multi-scale modeling of shape distortions during sintering of bi-layers

Tadesse Molla, Tesfaye ; Bjørk, Rasmus ; Olevsky, Eugene ; Pryds, Nini ; Frandsen, Henrik Lund
in: Computational Materials Science, vol: 88, pages: 28–36

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1016/j.commatsci.2014.02.041

 

Performance and stress analysis of oxide thermoelectric module architecture designed for maximum power output

Wijesekara , Waruna ; Rosendahl, Lasse ; Wu, NingYu ; Han, Li ; Bjørk, Rasmus ; Van Nong, Ngo
Presented at:
32nd International Conference on Thermoelectrics

Type: Poster (Peer reviewed)

Status: Published     |    År: 2014

  PDF

Performance-oriented Analysis of a Hybrid magnetic Assembly for a Heat-pump Magnetocaloric Device

Insinga, Andrea Roberto ; Smith, Anders ; Bahl, Christian R.H. ; Bjørk, Rasmus
part of: Proceedings of the 6th IIF-IIR international Conference on Magnetic Refrigeration, 2014, International Institute of Refrigeration
Presented at:
6th IIR/IIF International Conference on Magnetic Refrigeration

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2014

  PDF

Strain in the mesoscale kinetic Monte Carlo model for sintering

Bjørk, Rasmus ; Frandsen, Henrik Lund ; Tikare, V. ; Olevsky, E. ; Pryds, Nini
in: Computational Materials Science, vol: 82, pages: 293-297

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2014     |    DOI: https://doi.org/10.1016/j.commatsci.2013.09.051

2013
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Demagnetization factor for a powder of randomly packed spherical particles

Bjørk, Rasmus ; Bahl, Christian R.H.
in: Applied Physics Letters, vol: 103, issue: 10, pages: 102403

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1063/1.4820141

  PDF

Metamaterial anisotropic flux concentrators and magnetic arrays

Bjørk, Rasmus ; Smith, Anders ; Bahl, Christian R.H.
in: Journal of Applied Physics, vol: 114, issue: 5

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1063/1.4816096

  PDF

Modeling Kinetics of Distortion in Porous Bi-layered Structures

Tadesse Molla, Tesfaye ; Frandsen, Henrik Lund ; Bjørk, Rasmus ; Ni, De Wei ; Olevsky, Eugene ; Pryds, Nini
in: Journal of the European Ceramic Society, vol: 33, issue: 7, pages: 1297–1305

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1016/j.jeurceramsoc.2012.12.019

 

Modeling sintering of multilayers under influence of gravity

Frandsen, Henrik Lund ; Olevsky, Eugene ; Tadesse Molla, Tesfaye ; Esposito, Vincenzo ; Bjørk, Rasmus ; Pryds, Nini
in: Journal of the American Ceramic Society, vol: 96, issue: 1, pages: 80-89

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1111/jace.12070

 

Sintering of Multilayered Porous Structures: Part I-Constitutive Models

Olevsky, Eugene ; Tadesse Molla, Tesfaye ; Frandsen, Henrik Lund ; Bjørk, Rasmus ; Esposito, Vincenzo ; Ni, De Wei ; Ilyina, Aleksandra ; Pryds, Nini
in: Journal of the American Ceramic Society, vol: 96, issue: 8, pages: 2657–2665

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1111/jace.12375

 

Sintering of Multilayered Porous Structures: Part II – Experiments and Model Applications

Ni, De Wei ; Olevsky, Eugene ; Esposito, Vincenzo ; Tadesse Molla, Tesfaye ; Foghmoes, Søren Preben Vagn ; Bjørk, Rasmus ; Frandsen, Henrik Lund ; Aleksandrova, Elena ; Pryds, Nini
in: Journal of the American Ceramic Society, vol: 96, issue: 8, pages: 2666–2673

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1111/jace.12374

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The effect of particle size distributions on the microstructural evolution during sintering

Bjørk, Rasmus ; Tikare, V. ; Frandsen, Henrik Lund ; Pryds, Nini
in: Journal of the American Ceramic Society, vol: 96, issue: 1, pages: 103-110

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2013     |    DOI: https://doi.org/10.1111/jace.12100

2012
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Development and Experimental Results from a 1 kW Prototype AMR

Bahl, Christian ; Engelbrecht, Kurt ; Eriksen, Dan ; Lozano, Jaime ; Bjørk, Rasmus ; Geyti, Jørgen ; Nielsen, Kaspar Kirstein ; Smith, Anders ; Pryds, Nini
part of: Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature, 2012
Presented at:
5th IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2012

 

Experimental results for a novel rotary active magnetic regenerator

Engelbrecht, Kurt ; Eriksen, Dan ; Bahl, Christian ; Bjørk, Rasmus ; Geyti, Jørgen ; Lozano, Jaime ; Nielsen, Kaspar Kirstein ; Saxild, Finn B. ; Smith, Anders ; Pryds, Nini
in: International Journal of Refrigeration, vol: 35, issue: 6, pages: 1498-1505

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2012     |    DOI: https://doi.org/10.1016/j.ijrefrig.2012.05.003

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Improved Modeling Approaches for Constrained Sintering of Bi-Layered Porous Structures

Tadesse Molla, Tesfaye ; Frandsen, Henrik Lund ; Esposito, Vincenzo ; Bjørk, Rasmus ; Ni, De Wei ; Olevsky, Eugene ; Pryds, Nini
part of: Proceedings of PM 2012 - Powder Metallurgy World Congress & Exhibition, 2012, Japan Powder Metallurgy Association
Presented at:
Powder Metallurgy World Congress and Exhibition (PM 2012)

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2012

 

Materials Challenges for High Performance Magnetocaloric Refrigeration Devices

Smith, Anders ; Bahl, Christian ; Bjørk, Rasmus ; Engelbrecht, Kurt ; Nielsen, Kaspar Kirstein ; Pryds, Nini
in: Advanced Energy Materials, vol: 2, pages: 1288–1318

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2012     |    DOI: https://doi.org/10.1002/aenm.201200167

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Modeling the microstructural evolution during constrained sintering

Bjørk, Rasmus ; Frandsen, Henrik Lund ; Tikare, V. ; Pryds, Nini
Presented at:
Powder Metallurgy World Congress and Exhibition (PM 2012)

Type: Paper (Peer reviewed)

Status: Published     |    År: 2012

 

Properties of magnetocaloric materials with a distribution of Curie temperatures

Bahl, Christian Robert Haffenden ; Bjørk, Rasmus ; Smith, Anders ; Nielsen, Kaspar Kirstein
in: Journal of Magnetism and Magnetic Materials, vol: 324, issue: 4, pages: 564-568

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2012     |    DOI: https://doi.org/10.1016/j.jmmm.2011.08.044

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The sintering behavior of close-packed spheres

Bjørk, Rasmus ; Tikare, V. ; Frandsen, Henrik Lund ; Pryds, Nini
in: Scripta Materialia, vol: 67, issue: 1, pages: 81-84

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2012     |    DOI: https://doi.org/10.1016/j.scriptamat.2012.03.024

2011
 

Design concepts for a continuously rotating active magnetic regenerator

Bahl, Christian Robert Haffenden ; Engelbrecht, Kurt ; Bjørk, Rasmus ; Eriksen, Dan ; Smith, Anders ; Nielsen, Kaspar Kirstein ; Pryds, Nini
in: International Journal of Refrigeration, vol: 34, issue: 8, pages: 1792-1796
Presented at:
23rd IIR International Congress of Refrigeration

Type: Conference article (Peer reviewed)

Status: Published     |    År: 2011     |    DOI: https://doi.org/10.1016/j.ijrefrig.2011.07.013

 

A Monolithic Perovskite Structure for Use as a Magnetic Regenerator

Pryds, Nini ; Clemens, Frank ; Menon, Mohan ; Nielsen, Pernille Hedemark ; Brodersen, Karen ; Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Engelbrecht, Kurt ; Nielsen, Kaspar Kirstein ; Smith, Anders
in: Journal of the American Ceramic Society, vol: 94, issue: 8, pages: 2549-2555

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2011     |    DOI: https://doi.org/10.1111/j.1551-2916.2011.04398.x

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Analysis of Key Factors Controlling Sintering of Dense and Porous CGO Bi-layers

Tadesse Molla, Tesfaye ; Frandsen, Henrik Lund ; Esposito, Vincenzo ; Bjørk, Rasmus ; Foghmoes, Søren Preben Vagn ; Olevsky, Eugene ; Pryds, Nini
Presented at:
Material science and technology 2011

Type: Poster

Status: Published     |    År: 2011

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Determining the minimum mass and cost of a magnetic refrigerator

Bjørk, Rasmus ; Smith, Anders ; Bahl, Christian Robert Haffenden ; Pryds, Nini
in: International Journal of Refrigeration, vol: 34, issue: 8, pages: 1805-1816

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2011     |    DOI: https://doi.org/10.1016/j.ijrefrig.2011.05.021

 

Global uenighed om energiløsninger. Kyniske, pragmatiske og naive udlægninger fra Verdensenergikongressen i Montreal

Bjørk, Rasmus ; Tofte Brenneche, Nicolaj
in: Nyhedsbladet Dansk Energi, issue: 07.02.2011 - 1. sektion, pages: 16

Type: Journal article

Status: Published     |    År: 2011

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Improving Magnet Designs With High and Low Field Regions

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Pryds, Nini
in: I E E E Transactions on Magnetics, vol: 47, issue: 6, pages: 1687-1692

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2011     |    DOI: https://doi.org/10.1109/TMAG.2011.2114360

 

The ideal dimensions of a Halbach cylinder of finite length

Bjørk, Rasmus
in: Journal of Applied Physics, vol: 109, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2011     |    DOI: https://doi.org/10.1063/1.3525646

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The influence of the magnetic field on the performance of an active magnetic regenerator (AMR)

Bjørk, Rasmus ; Engelbrecht, Kurt
in: International Journal of Refrigeration, vol: 34, issue: 1, pages: 192-203

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2011     |    DOI: https://doi.org/10.1016/j.ijrefrig.2010.07.004

2010
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Designing a magnet for magnetic refrigeration

Bjørk, Rasmus

Type: Ph.D. thesis

Status: Published     |    År: 2010

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Analysis of the magnetic field, force, and torque for two-dimensional Halbach cylinders

Bjørk, Rasmus ; Smith, Anders ; Bahl, Christian Robert Haffenden
in: Journal of Magnetism and Magnetic Materials, vol: 322, issue: 1, pages: 133-141

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1016/j.jmmm.2009.08.044

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An optimized magnet for magnetic refrigeration

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Christensen, Dennis ; Pryds, Nini
in: Journal of Magnetism and Magnetic Materials, vol: 322, issue: 21, pages: 3324-3328

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1016/j.jmmm.2010.06.017

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Comparison of adjustable permanent magnetic field sources

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Pryds, Nini
in: Journal of Magnetism and Magnetic Materials, vol: 322, issue: 22, pages: 3664-3671

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1016/j.jmmm.2010.07.022

 

Design Concepts for a Continuously Rotating Active Magnetic Regenerator

Bahl, Christian Robert Haffenden ; Engelbrecht, Kurt ; Bjørk, Rasmus ; Eriksen, Dan ; Smith, Anders ; Pryds, Nini
part of: 4th International Conference of IIR on Magnetic Refrigeration at Room Temperature, pages: 351-358, 2010, International Institute of Refrigeration, Paris
Presented at:
4th International Conference of IIR on Magnetic Refrigeration at Room Temperature

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2010

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Magnetocaloric properties of LaFe13−x−yCoxSiy and commercial grade Gd

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Katter, M.
in: Journal of Magnetism and Magnetic Materials, vol: 322, issue: 24, pages: 3882-3888

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1016/j.jmmm.2010.08.013

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Review and comparison of magnet designs for magnetic refrigeration

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Pryds, Nini
in: International Journal of Refrigeration, vol: 33, issue: 3, pages: 437-448

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1016/j.ijrefrig.2009.12.012

 

Spatially resolved measurements of the magnetocaloric effect and the local magnetic field using thermography

Christensen, Dennis ; Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Clausen, Sønnik
in: Journal of Applied Physics, vol: 108, issue: 6, pages: 063913

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1063/1.3487943

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The demagnetizing field of a non-uniform rectangular prism

Smith, Anders ; Nielsen, Kaspar Kirstein ; Christensen, Dennis ; Bahl, Christian Robert Haffenden ; Bjørk, Rasmus ; Hattel, Jesper Henri
in: Journal of Applied Physics, vol: 107, issue: 10, pages: 103910

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2010     |    DOI: https://doi.org/10.1063/1.3385387

2009
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Detailed numerical modeling of a linear parallel-plate Active Magnetic Regenerator

Nielsen, Kaspar Kirstein ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Bjørk, Rasmus ; Pryds, Nini ; Hattel, Jesper Henri
in: International Journal of Refrigeration, vol: 32, issue: 6, pages: 1478-1486

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2009     |    DOI: https://doi.org/10.1016/j.ijrefrig.2009.03.003

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Magnetic cooling at Risoe DTU

Nielsen, Kaspar Kirstein ; Bjørk, Rasmus ; Jensen, Jesper Buch ; Bahl, Christian Robert Haffenden ; Pryds, Nini ; Smith, Anders ; Nordentoft, Anders ; Hattel, Jesper Henri
in: arXiv.org, e-Print Archive, Condensed Matter

Type: Journal article

Status: Published     |    År: 2009     |    DOI: https://doi.org/10.1016/j.scriptamat.2012.08.036

 

Numerical modeling in magnetic refrigeration

Bjørk, Rasmus ; Nielsen, Kaspar Kirstein ; Smith, Anders ; Bahl, Christian Robert Haffenden ; Pryds, Nini ; Hattel, J.
part of: Proceedings of SIMS 50, 2009, SIMS 50 Organizing Committee
Presented at:
50th International Conference of Scandinavian Simulation Society

Type: Article in proceedings

Status: Published     |    År: 2009

 

On the optimal magnet design for magnetic refrigeration

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Pryds, Nini
part of: Proceedings, 2009, Institut International du Froid
Presented at:
3rd International Conference of the IIR on Magnetic Refrigeration at Room Temperature

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2009

2008
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Magnetic Cooling at Risø DTU

Nielsen, Kaspar Kirstein ; Bjørk, Rasmus ; Jensen, Jesper Buch ; Bahl, Christian Robert Haffenden ; Pryds, Nini ; Smith, Anders ; Nordentoft, Anders ; Hattel, Jesper Henri
part of: 8th IIF/IIR Gustav Lorentzen Conference on Natural Working Fluids, 2008
Presented at:
8th IIF/IIR Gustav Lorentzen Conference on Natural Working Fluids

Type: Article in proceedings (Peer reviewed)

Status: Published     |    År: 2008

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Optimization and improvement of Halbach cylinder design

Bjørk, Rasmus ; Bahl, Christian Robert Haffenden ; Smith, Anders ; Pryds, Nini
in: Journal of Applied Physics, vol: 104, issue: 1, pages: 013910

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2008     |    DOI: https://doi.org/10.1063/1.2952537