• Pontoppidanstræde 111, 1-129

    9220 Aalborg Ø

    Denmark

19972021
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Research Output 1997 2020

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Journal article
29 Citations (Scopus)

A Computational Analysis of Multiphase Flow Through PEMFC Cathode Porous Media Using the Multifluid Approach

Berning, T., Odgaard, M. & Kær, S. K., 14 Sep 2009, In : Journal of the Electrochemical Society. 156, 11, p. B1301-B1311 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

9 Citations (Scopus)

Analysing Gas-Liquid Flow in PEM Electrolyser Micro-Channels

Lafmejani, S. S., Olesen, A. C. & Kær, S. K., Sep 2016, In : ECS Transactions. 75, 14, p. 1121-1127 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Liquids
Gases
Current density
Water
Electrolysis
3 Citations (Scopus)
161 Downloads (Pure)

Analysing Gas-Liquid Flow in PEM Electrolyser Micro-Channels Using a Micro-Porous Ceramic as Gas Permeable Wall

Lafmejani, S. S., Olesen, A. C., Al Shakhshir, S. & Kær, S. K., 2017, In : ECS Transactions. 80, 8, p. 1107-1115 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Electrolysis
Electricity
Membranes
Liquids
Current density
33 Citations (Scopus)

Analysis of accelerated degradation of a HT-PEM fuel cell caused by cell reversal in fuel starvation condition

Zhou, F., Andreasen, S. J., Kær, S. K. & Yu, D., 14 Jan 2015, In : International Journal of Hydrogen Energy. 40, 6, p. 2833-2839 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

fuel cells
Fuel cells
Anodes
degradation
anodes
45 Citations (Scopus)

Analysis of the impact of Heat-to-Power Ratio for a SOFC-based mCHP system for residential application under different climate regions in Europe

Liso, V., Zhao, Y., Brandon, N., Nielsen, M. P. & Kær, S. K., 2011, In : International Journal of Hydrogen Energy. 36, 21, p. 13715-13726

Research output: Contribution to journalJournal articleResearchpeer-review

Solid oxide fuel cells (SOFC)
climate
heat
Space heating
electricity

Analyzing Discharging and Charging Performance of a Lithium-ion Battery

Madani, S. S., Schaltz, E. & Kær, S. K., 2020, (Submitted) In : ECS Transactions.

Research output: Contribution to journalJournal articleResearchpeer-review

Electric vehicles
Lithium-ion batteries

An Analytical Solution for Lithium-Ion Batteries Cooling

Madani, S. S., Schaltz, E. & Kær, S. K., 2020, (Submitted) In : ECS Transactions.

Research output: Contribution to journalJournal articleResearchpeer-review

Cooling
Electric vehicles
Liquids
Air
Lithium-ion batteries
8 Citations (Scopus)
196 Downloads (Pure)

An EIS alternative for impedance measurement of a high temperature PEM fuel cell stack based on current pulse injection

Jeppesen, C., Araya, S. S., Sahlin, S. L., Andreasen, S. J. & Kær, S. K., Jun 2017, In : International Journal of Hydrogen Energy. 42, 24, p. 15851-15860 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

File
impedance measurement
Electrochemical impedance spectroscopy
fuel cells
Fuel cells
impedance
3 Citations (Scopus)
66 Downloads (Pure)

An Electrical Equivalent Circuit Model of a Lithium Titanate Oxide Battery

Madani, S. S., Schaltz, E. & Kær, S. K., Mar 2019, In : Batteries. 5, 1, p. 1-14 14 p., 31.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Equivalent circuits
Lithium
Oxides
Parameterization
Dynamic models
5 Downloads (Pure)

An experimental analysis of entropic coefficient of a lithium titanate oxide battery

Madani, S. S., Schaltz, E. & Kær, S. K., Jul 2019, In : Energies. 12, 14, p. 1-10 10 p., 2685.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Experimental Analysis
Battery
Oxides
Lithium
Heat
30 Citations (Scopus)

A numerical study of the gas-liquid, two-phase flow maldistribution in the anode of a high pressure PEM water electrolysis cell

Olesen, A. C., Rømer, C. & Kær, S. K., Jan 2016, In : International Journal of Hydrogen Energy. 41, 1, p. 52–68 17 p.

Research output: Contribution to journalJournal articleResearchpeer-review

two phase flow
electrolysis
Electrolysis
Two phase flow
Ion exchange
21 Citations (Scopus)
Proton exchange membrane fuel cells (PEMFC)
Electricity
Temperature
Lead
Stirling engines
37 Citations (Scopus)
297 Downloads (Pure)

A study of multi-phase flow through the cathode side of an interdigitated flow field using a multi-fluid model

Berning, T., Odgaard, M. & Kær, S. K., Feb 2010, In : Journal of Power Sources. 195, 15, p. 4842-4852 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

multiphase flow
Multiphase flow
Flow fields
flow distribution
Cathodes
6 Citations (Scopus)

Boundary model-based reference control of blower cooled high temperature polymer electrolyte membrane fuel cells

Jensen, H-C. B. & Kær, S. K., Apr 2011, In : International Journal of Hydrogen Energy. 36, 8, p. 5030-5037 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

blowers
Blowers
Proton exchange membrane fuel cells (PEMFC)
fuel cells
Fuel cells
62 Citations (Scopus)
3 Downloads (Pure)

Characterisation and Modelling of a High Temperature PEM Fuel Cell Stack using Electrochemical Impedance Spectroscopy

Andreasen, S. J., Jespersen, J. L., Schaltz, E. & Kær, S. K., 2009, In : Fuel Cells. 9, 4, p. 463-473

Research output: Contribution to journalJournal articleResearchpeer-review

Electrochemical impedance spectroscopy
Fuel cells
Temperature
Equivalent circuits
Data acquisition
81 Citations (Scopus)

Chemistry and radiation in oxy-fuel combustion: A computational fluid dynamics modeling study

Yin, C., Rosendahl, L. & Kær, S. K., Apr 2011, In : Fuel. 90, 7, p. 2519-2529 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Computational fluid dynamics
Radiation
Furnace fuels
Computer simulation
Heat radiation
65 Citations (Scopus)

Co-firing straw with coal in a swirl-stabilized dual-feed burner: modelling and experimental validation

Yin, C., Kær, S. K., Rosendahl, L. & Hvid, S. L., 2010, In : Bioresource Technology. 101, 11, p. 4169-4178 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Coal
Straw
Fuel burners
straw
coal
16 Citations (Scopus)
406 Downloads (Pure)

Comparative study of the break in process of post doped and sol–gel high temperature proton exchange membrane fuel cells

Vang, J. R., Andreasen, S. J., Araya, S. S. & Kær, S. K., Sep 2014, In : International Journal of Hydrogen Energy. 39, 27, p. 14959–14968 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

File
Proton exchange membrane fuel cells (PEMFC)
fuel cells
impedance
membranes
protons
12 Citations (Scopus)
2 Downloads (Pure)

Comparison of reynolds averaged navier stokes based simulation and large eddy simulation for one isothermal swirling flow

Yang, Y. & Kær, S. K., 2012, In : Journal of Thermal Science. 21, 2, p. 154-161 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

swirling
large eddy simulation
vortex breakdown
grids
simulation
22 Citations (Scopus)

Comprehensive study of ignition and combustion of single wooden particles

Momenikouchaksaraei, M., Yin, C., Kær, S. K. & Hvid, S. L., 2013, In : Energy & Fuels. 27, 2, p. 1061-1072

Research output: Contribution to journalJournal articleResearchpeer-review

Ignition
Pulverized fuel
Biomass
Oxygen
Wood
36 Citations (Scopus)
454 Downloads (Pure)

Control and experimental characterization of a methanol reformer for a 350 W high temperature polymer electrolyte membrane fuel cell system

Andreasen, S. J., Kær, S. K. & Sahlin, S. L., 6 Feb 2013, In : International Journal of Hydrogen Energy. 38, 3, p. 1676-1684 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Proton exchange membrane fuel cells (PEMFC)
fuel cells
Methanol
methyl alcohol
electrolytes
18 Citations (Scopus)
54 Downloads (Pure)

Degradation Behavior of Lithium-Ion Batteries during Calendar Ageing – The Case of the Internal Resistance Increase

Stroe, D-I., Swierczynski, M. J., Kær, S. K. & Teodorescu, R., 1 Jan 2018, In : I E E E Transactions on Industry Applications. 54, 1, p. 517-525 9 p., 8048537.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Aging of materials
Energy storage
Degradation
Temperature
Lithium-ion batteries
47 Citations (Scopus)
2 Downloads (Pure)

Directly connected series coupled HTPEM fuel cell stacks to a Li-ion battery DC bus for a fuel cell electrical vehicle

Andreasen, S. J., Ashworth, L., Remón, I. N. & Kær, S. K., 28 Nov 2008, In : International Journal of Hydrogen Energy. 33, 23, p. 7137-7145 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
fuel cells
electric batteries
Fuel cells
vehicles
26 Citations (Scopus)
296 Downloads (Pure)

Dynamic Model of the High Temperature Proton Exchange Membrane Fuel Cell Stack Temperature

Andreasen, S. J. & Kær, S. K., 12 Aug 2009, In : Journal of Fuel Cell Science and Technology. 6, 4, p. 041006-1-041006-8 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
Dynamic models
Fuel cells
Temperature
Cathodes
1 Citation (Scopus)

Effect of Bad Connection on Surface Temperature of Lithium-Ion Batteries by Using Infrared Thermography

Madani, S. S., Schaltz, E. & Kær, S. K., Aug 2018, In : ECS Transactions. 87, 1, p. 39-50 12 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Electric vehicles
Temperature distribution
Temperature
Vehicle performance
Thermocouples
15 Downloads (Pure)

Effect of Current Rate and Prior Cycling on the Coulombic Efficiency of a Lithium-Ion Battery

Madani, S. S., Schaltz, E. & Kær, S. K., Aug 2019, In : Batteries. 5, 3, 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Aging of materials
Degradation
Lithium-ion batteries
Experiments
27 Citations (Scopus)
80 Citations (Scopus)

Electrochemical characterization of a polybenzimidazole-based high temperature proton exchange membrane unit cell

Jespersen, J. L., Schaltz, E. & Kær, S. K., 2009, In : Journal of Power Sources. 91, 2, p. 289-296

Research output: Contribution to journalJournal articleResearchpeer-review

polybenzimidazole
Protons
Ion exchange
Stoichiometry
impedance
1129 Downloads (Pure)

Electrochemical Impedance Spectroscopy (EIS) Characterization of Reformate-operated High Temperature PEM Fuel Cell Stack

Sahlin, S. L., Simon Araya, S., Andreasen, S. J. & Kær, S. K., Apr 2017, In : International Journal of Power and Energy Research. 1, 1, p. 20-40 20 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Electrochemical impedance spectroscopy
Stoichiometry
Fuel cells
Anodes
Reforming reactions
9 Citations (Scopus)

Electrothermal impedance spectroscopy as a cost efficient method for determining thermal parameters of lithium ion batteries: Prospects, measurement methods and the state of knowledge

Swierczynski, M. J., Stroe, D. L., Stanciu, T. & Kær, S. K., Jul 2017, In : Journal of Cleaner Production. 155, Part 1, p. 63-71 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

measurement method
lithium
spectroscopy
Spectroscopy
ion
89 Citations (Scopus)

Energy management strategy based on short-term generation scheduling for a renewable microgrid using a hydrogen storage system

Cau, G., Cocco, D., Petrollese, M., Kær, S. K. & Milan, C., Nov 2014, In : Energy Conversion and Management. 87, p. 820-831 12 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Energy management
Hydrogen storage
Scheduling
Energy storage
Wind turbines
8 Citations (Scopus)
37 Citations (Scopus)

Evaluation of Fuel-Cell Range Extender Impact on Hybrid Electrical Vehicle Performance

Jensen, H-C. B., Schaltz, E., Koustrup, P. S., Andreasen, S. J. & Kær, S. K., Jan 2013, In : I E E E Transactions on Vehicular Technology. 62, 1, p. 50-60 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Vehicle performance
Fuel cells
Electric vehicles
Hybrid vehicles
Internal combustion engines
2 Citations (Scopus)

Experimental and numerical study of flow in expanded metal plate for water electrolysis applications

Lafmejani, S. S., Müller, M., Olesen, A. C. & Kær, S. K., Sep 2018, In : Journal of Power Sources. 397, p. 334-342 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Plate metal
metal plates
electrolysis
Electrolysis
Metals
120 Citations (Scopus)

Experimental characterization and modeling of commercial polybenzimidazole-based MEA performance

Korsgaard, A., Refshauge, R. H., Nielsen, M. P., Bang, M. & Kær, S. K., 2006, In : Journal of Power Sources. 162, 1, p. 239-245 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

polybenzimidazole
fuel cells
stoichiometry
assembly
cathodes
23 Citations (Scopus)

Experimental Characterization of the Poisoning Effects of Methanol-Based Reformate Impurities on a PBI-Based High Temperature PEM Fuel Cell

Araya, S. S., Andreasen, S. J. & Kær, S. K., 24 Oct 2012, In : Energies. 5, 11, p. 4251-4267

Research output: Contribution to journalJournal articleResearchpeer-review

Fuel Cell
Impurities
Fuel cells
Methanol
Membrane
5 Citations (Scopus)
654 Downloads (Pure)

Experimental Evaluation of a Pt-based Heat Exchanger Methanol Reformer for a HTPEM Fuel Cell Stack

Andreasen, S. J., Kær, S. K. & Nielsen, M. P., 2008, In : ECS Transactions. 12, 1, p. 571-578 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Heat exchangers
Fuel cells
Methanol
Hydrogen
Reforming reactions
16 Citations (Scopus)

Experimental investigation of carbon monoxide poisoning effect on a PBI/H3PO4 high temperature polymer electrolyte membrane fuel cell: Influence of anode humidification and carbon dioxide

Zhou, F., Andreasen, S. J., Kær, S. K. & Park, J. O., Nov 2015, In : International Journal of Hydrogen Energy. 40, 43, p. 14932- 14941 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

carbon monoxide poisoning
Proton exchange membrane fuel cells (PEMFC)
dioxides
Carbon monoxide
fuel cells
17 Citations (Scopus)

Experimental study of cell reversal of a high temperature polymer electrolyte membrane fuel cell caused by H2 starvation

Zhou, F., Andreasen, S. J. & Kær, S. K., Jun 2015, In : International Journal of Hydrogen Energy. 40, 20, p. 6672–6680 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Proton exchange membrane fuel cells (PEMFC)
fuel cells
Current density
electrolytes
membranes
44 Citations (Scopus)

Experimental study on effects of particle shape and operating conditions on combustion characteristics of single biomass particles

Momenikouchaksaraei, M., Yin, C., Kær, S. K., Troels, B. H., Jensen, P. & Glarborg, P., 2013, In : Energy & Fuels. 27, 1, p. 507-514

Research output: Contribution to journalJournal articleResearchpeer-review

Ignition
Biomass
Oxygen
CCD cameras
Combustors
12 Citations (Scopus)
25 Downloads (Pure)

Experimental study to distinguish the effects of methanol slip and water vapour on a high temperature PEM fuel cell at different operating conditions

Thomas, S., Vang, J. R., Araya, S. S. & Kær, S. K., Apr 2017, In : Applied Energy. 192, p. 422–436 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

fuel cell
density current
Water vapor
methanol
Fuel cells
7 Citations (Scopus)
3 Downloads (Pure)

Fault Characterization of a Proton Exchange Membrane Fuel Cell Stack

Simon Araya, S., Zhou, F., Sahlin, S. L., Thomas, S., Jeppesen, C. & Kær, S. K., Jan 2019, In : Energies. 12, 1, p. 1-17 17 p., en12010152.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Fuel Cell
Proton exchange membrane fuel cells (PEMFC)
Drying
Fault
Membrane
8 Citations (Scopus)
208 Downloads (Pure)

Fault detection and isolation of high temperature proton exchange membrane fuel cell stack under the influence of degradation

Jeppesen, C., Araya, S. S., Sahlin, S. L., Thomas, S., Andreasen, S. J. & Kær, S. K., Aug 2017, In : Journal of Power Sources. 359, p. 37-47 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

File
fault detection
Proton exchange membrane fuel cells (PEMFC)
Fault detection
fuel cells
isolation
20 Citations (Scopus)

Field Experience from Li-Ion BESS Delivering Primary Frequency Regulation in the Danish Energy Market

Swierczynski, M. J., Stroe, D. I., Lærke, R., Stan, A-I., Kjær, P. C., Teodorescu, R. & Kær, S. K., 2014, In : ECS Transactions. 61, 37, p. 1-14 14 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Energy storage
Inspection
Degradation
Ions
Lithium-ion batteries
21 Citations (Scopus)

Flow and Pressure Distribution in Fuel Cell Manifolds

Lebæk, J., Bang, M. & Kær, S. K., Aug 2010, In : Journal of Fuel Cell Science and Technology. 7, 6, p. 061001-1 - 061001-8 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Pressure distribution
Fuel cells
Pressure gages
Cathodes
Air
2 Citations (Scopus)

From rotating disk electrode to single cell: Exploration of PtNi/C octahedral nanocrystal as practical proton exchange membrane fuel cell cathode catalyst

Wang, J., Li, B., Gao, X., Yang, D., Lv, H., Xiao, Q., Kær, S. K. & Zhang, C., Dec 2018, In : Journal of Power Sources. 406, p. 118-127 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

cell cathodes
rotating disks
Rotating disks
Proton exchange membrane fuel cells (PEMFC)
Nanocrystals
27 Citations (Scopus)
195 Downloads (Pure)

Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

Stroe, D. L., Swierczynski, M. J., Stroe, A-I. & Kær, S. K., Dec 2016, In : Batteries. 2, 4, 20 p., 37.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Open circuit voltage
Parameterization
Energy storage
Economics
Lithium-ion batteries
313 Citations (Scopus)
3380 Downloads (Pure)

Grate-firing of biomass for heat and power production

Yin, C., Rosendahl, L. & Kær, S. K., 2008, In : Progress in Energy and Combustion Science. 34, 6, p. 725-754 30 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Biomass
Boilers
Boiler firing
Fluidized bed combustion
Hot Temperature
3 Citations (Scopus)
89 Downloads (Pure)

Heat Loss Measurement of Lithium Titanate Oxide Batteries under Fast Charging Conditions by Employing Isothermal Calorimeter

Madani, S. S., Schaltz, E. & Kær, S. K., Nov 2018, In : Batteries. 4, 4, p. 1-15 15 p., 59.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Calorimeters
Heat losses
Lithium
Oxides
Temperature