No photo of Sønnik Clausen
  • Frederiksborgvej 399, 313, 013

    4000 Roskilde

    Denmark

1990 …2022

Research output per year

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Research Output

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Journal article
2019

From wood chips to pellets to milled pellets: The mechanical processing pathway of Austrian pine and European beech

Masche, M., Puig-Arnavat, M., Jensen, P. A., Holm, J. K., Clausen, S., Ahrenfeldt, J. & Henriksen, U. B., 2019, In : Powder Technology. 350, p. 134-145

Research output: Contribution to journalJournal articleResearchpeer-review

2018

Experiments and modeling of single plastic particle conversion in suspension

Nakhaei, M., Wu, H., Grévain, D., Jensen, L. S., Glarborg, P., Clausen, S. & Dam–Johansen, K., 2018, In : Fuel Processing Technology. 178, p. 213-225

Research output: Contribution to journalJournal articleResearchpeer-review

Measurements of the NOx precursors and major species concentrations above the grate at a waste-to-energy plant

Jepsen, M. S., Jensen, P. A., Clausen, S., Fateev, A., Glarborg, P. & Norman, T., 2018, In : Fuel. 222, p. 475-484

Research output: Contribution to journalJournal articleResearchpeer-review

Wood pellet milling tests in a suspension-fired power plant

Masche, M., Puig-Arnavat, M., Wadenbäck, J., Clausen, S., Jensen, P. A., Ahrenfeldt, J. & Henriksen, U. B., 2018, In : Fuel Processing Technology. 173, p. 89–102

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
25 Downloads (Pure)
2017

Accurate particle speed prediction by improved particle speed measurement and 3-dimensional particle size and shape characterization technique

Cernuschi, F., Rothleitner, C., Clausen, S., Neuschaefer-Rube, U., Illemann, J., Lorenzoni, L., Guardamagna, C. & Larsen, H. E., 2017, In : Powder Technology. 318, p. 95-109

Research output: Contribution to journalJournal articleResearchpeer-review

High-resolution absorption measurements of NH3 at high temperatures: 2100–5500 cm−1

Barton, E. J., Yurchenko, S. N., Tennyson, J., Clausen, S. & Fateev, A., 2017, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 189, p. 60-65 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access

Imaging of Flames in Cement Kilns To Study the Influence of Different Fuel Types

Pedersen, M. N., Nielsen, M., Clausen, S., Jensen, P. A., Jensen, L. S. & Dam-Johansen, K., 2017, In : Energy and Fuels. 31, 10, p. 11424-11438

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
225 Downloads (Pure)
2016

Direct and inverse problems of infrared tomography

Sizikov, V. S., Evseev, V., Fateev, A. & Clausen, S., 2016, In : Applied Optics. 55, 1, p. 208-220

Research output: Contribution to journalJournal articleResearchpeer-review

ExoMol molecular line lists - XIV. The rotation-vibration spectrum of hot SO2

Underwood, D. S., Tennyson, J., Yurchenko, S. N., Huang, X., Schwenke, D. W., Lee, T. J., Clausen, S. & Fateev, A., 2016, In : Monthly Notices of the Royal Astronomical Society. 459, 4, p. 3890-3899

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
181 Downloads (Pure)

ExoMol molecular line lists - XVII. The rotation-vibration spectrum of hot SO3

Underwood, D. S., Yurchenko, S. N., Tennyson, J., Al-Refaie, A. F., Clausen, S. & Fateev, A., 2016, In : Monthly Notices of the Royal Astronomical Society. 462, 4, p. 162-75

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
419 Downloads (Pure)

High temperature and high pressure gas cell for quantitative spectroscopic measurements

Christiansen, C., Stolberg-Rohr, T., Fateev, A. & Clausen, S., 2016, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 169, p. 96-103

Research output: Contribution to journalJournal articleResearchpeer-review

2015

An inverse radiation model for optical determination of temperature and species concentration: Development and validation

Ren, T., Modest, M. F., Fateev, A. & Clausen, S., 2015, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 151, p. 198-209

Research output: Contribution to journalJournal articleResearchpeer-review

High-resolution absorption measurements of NH3 at high temperatures: 500–2100cm−1

Barton, E. J., Yurchenko, S. N., Tennyson, J., Clausen, S. & Fateev, A., 2015, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 167, p. 126-134

Research output: Contribution to journalJournal articleResearchpeer-review

UV absorption cross-sections of selected sulfur-containing compounds at temperatures up to 500°C

Grosch, H., Fateev, A. & Clausen, S., 2015, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 154, p. 28-34

Research output: Contribution to journalJournal articleResearchpeer-review

Validation of HITEMP-2010 for carbon dioxide and water vapour at high temperatures and atmospheric pressures in 450-7600cm-1 spectral range

Alberti, M., Weber, R., Mancini, M., Fateev, A. & Clausen, S., 2015, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 157, p. 14-33

Research output: Contribution to journalJournal articleResearchpeer-review

2014

Determining the emissivity of pig skin for accurate infrared thermography

Sørensen, D. D., Clausen, S., Mercer, J. B. & Pedersen, L. J., 2014, In : Computers and Electronics in Agriculture. 109, p. 52-58

Research output: Contribution to journalJournal articleResearchpeer-review

Measurement and Modeling of Particle Radiation in Coal Flames

Bäckström, D., Johansson, R., Andersson, K. J., Johnsson, F., Clausen, S. & Fateev, A., 2014, In : Energy & Fuels. 28, 3, p. 2199-2210

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
580 Downloads (Pure)
2013

Hot gas flow cell for optical measurements on reactive gases

Grosch, H., Fateev, A., Nielsen, K. L. & Clausen, S., 2013, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 130, Special Issue, p. 392-399

Research output: Contribution to journalJournal articleResearchpeer-review

Improving the performance of infrared reflective night curtains for warming field plots

Bruhn, D., Larsen, K. S., de Dato, G. D., Duce, P., Zara, P., Beier, C., Schmidt, I. K., Clausen, S. & Mikkelsen, T. N., 2013, In : Agricultural and Forest Meteorology. 173, p. 53-62

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
436 Downloads (Pure)

Oxy-fuel combustion of millimeter-sized coal char: Particle temperatures and NO formation

Brix, J., Navascués, L. G., Nielsen, J. B., Bonnek, P. L., Larsen, H. E., Clausen, S., Glarborg, P. & Jensen, A. D., 2013, In : Fuel. 106, 0, p. 72-78

Research output: Contribution to journalJournal articleResearchpeer-review

2012

High-resolution transmission measurements of CO2 at high temperatures for industrial applications

Evseev, V., Fateev, A. & Clausen, S., 2012, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 113, p. 2222–2233

Research output: Contribution to journalJournal articleResearchpeer-review

11 Downloads (Pure)
2011

Comparison of Blackbodies for Calibration of Infrared Ear Thermometers

Pušnik, I., Clausen, S., Favreau, J-O., Gutschwager, B., Dogan, A. K., Diril, A., Guven, O. P., McEvoy, H., Hoem, S. S., Steiner, A. & van der Ham, E., Jan 2011, In : International Journal of Thermophysics. 32, 1-2, p. 127-138

Research output: Contribution to journalJournal articleResearchpeer-review

Validation of spectral gas radiation models under oxyfuel conditions. Part A: Gas cell experiments

Becher, V., Clausen, S., Fateev, A. & Spliethoff, H., 2011, In : International Journal of Greenhouse Gas Control. 5, p. S76-S99

Research output: Contribution to journalJournal articleResearchpeer-review

2010

Burnout of pulverized biomass particles in large scale boiler – Single particle model approach

Saastamoinen, J., Aho, M., Moilanen, A., Holst Sørensen, L., Clausen, S. & Berg, M., 2010, In : Biomass & Bioenergy. 34, 5, p. 728-736

Research output: Contribution to journalJournal articleResearchpeer-review

Physical limits of semiconductor laser operation: A time-resolved analysis of catastrophic optical damage

Ziegler, M., Hempel, M., Larsen, H. E., Tomm, J. W., Andersen, P. E., Clausen, S., Elliott, S. N. & Elsaesser, T., 2010, In : Applied Physics Letters. 97, 2, p. 021110

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
556 Downloads (Pure)

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

Christensen, D., Bjørk, R., Nielsen, K. K., Bahl, C. R. H., Smith, A. & Clausen, S., 2010, In : Journal of Applied Physics. 108, 6, p. 063913

Research output: Contribution to journalJournal articleResearchpeer-review

2009

In situ gas temperature measurements by UV-absorption spectroscopy

Fateev, A. & Clausen, S., 2009, In : International Journal of Thermophysics. 30, 1, p. 265-275

Research output: Contribution to journalJournal articleResearchpeer-review

2008

Mathematical modeling and experimental study of biomass combustion in a thermal 108 MW grate-fired boiler

Yin, C., Rosendahl, L., Kær, S. K., Clausen, S., Hvid, S. L. & Hille, T., 2008, In : Energy & Fuels. 22, p. 1380-1390

Research output: Contribution to journalJournal articleResearchpeer-review

2007

Spectral emissivity of surface blackbody calibrators

Clausen, S., 2007, In : International Journal of Thermophysics. 28, 6, p. 2145-2154

Research output: Contribution to journalJournal articleResearchpeer-review

2005

Calorimetry for dose measurement at electron accelerators in the 80-120 keV energy range

Helt-Hansen, J., Miller, A., Duane, S., Sharpe, P., McEwen, M. & Clausen, S., 2005, In : Radiation Physics and Chemistry. 74, 5, p. 354-371

Research output: Contribution to journalJournal articleResearchpeer-review

Comparison of noise sources in dual- and single-beam Fourier-transform near-infrared spectrometry

Andersen, H. V., Friderichsen, A., Clausen, S. & Bak, J., 2005, In : Appl. Opt.. 44, p. 6167-6175

Research output: Contribution to journalJournal articleResearchpeer-review

Hærdning med infrarød stråling

Clausen, S. & Svane, P., 2005, In : Industriel overfladebehandling. 2, p. 10-12, 14-15

Research output: Contribution to journalJournal articleCommunication

2002

A hot gas facility for high-temperature spectrometry

Clausen, S. & Bak, J., 2002, In : Measurement Science and Technology. 13, p. 1223-1229

Research output: Contribution to journalJournal articleResearchpeer-review

FTIR emission spectroscopy methods and procedures for real time quantitative gas analysis in industrial environments

Bak, J. & Clausen, S., 2002, In : Measurement Science and Technology. 13, p. 150-156

Research output: Contribution to journalJournal articleResearchpeer-review

Infrared thermography to evaluate milking induced alterations in teat tissue fluid circulation

Paulrud, C. O., Clausen, S., Andersen, P. E., Bjerring, M. & Rasmussen, M. D., 2002, In : Journal of Dairy Science. 85, Supp. 1, p. 84

Research output: Contribution to journalJournal articleResearch

2000

Lyset afslører detaljer i forbrændingsprocessen

Clausen, S., 2000, In : Byggeteknik Energi og Miljø. 10.april, p. 1 (2. sekt.)

Research output: Contribution to journalJournal articleCommunication

1999

AEROPROFILE - Risø-målinger i München og Napoli

Clausen, S. & Bak, J., 1999, In : Industriel IR-analyse. Nyhedsbrev. December, p. 1-2

Research output: Contribution to journalJournal articleCommunication

FTIR transmission emission spectroscopy of gases at high temperatures: Experimental set-up and analytical procedures

Clausen, S. & Bak, J., 1999, In : Journal of Quantitative Spectroscopy & Radiative Transfer. 61, p. 131-141

Research output: Contribution to journalJournal articleResearchpeer-review

Måling af forbrændingsgasser fra fly; Simulering af IR-gasspektre

Clausen, S. & Bak, J., 1999, In : Industriel IR-analyse. Nyhedsbrev. Marts, p. 1-2

Research output: Contribution to journalJournal articleCommunication

Signal-to-noise ratio of FT-IR CO gas spectra

Bak, J. & Clausen, S., 1999, In : Applied Spectroscopy. 53, 6, p. 697-700

Research output: Contribution to journalJournal articleResearch

1996

Improved temperature measurements of burning char and coal particles using an FT-IR spectrometer

Clausen, S. & Sørensen, L. H., 1996, In : Energy Fuels. 10, p. 1133-1141

Research output: Contribution to journalJournal articleResearch

Local measurement of gas temperature with an infrared fibre-optic probe

Clausen, S., 1996, In : Measurement Science and Technology. 7, p. 888-896

Research output: Contribution to journalJournal articleResearchpeer-review

Measurement of single moving particle temperatures with an FT-IR spectrometer

Clausen, S. & Sørensen, L. H., 1996, In : Applied Spectroscopy. 50, 9, p. 1103-1111

Research output: Contribution to journalJournal articleResearch

Measurement of surface temperature and emissivity by a multitemperature method for Fourier-transform infrared spectrometers

Clausen, S., Morgenstjerne, A. & Rathmann, O., 1996, In : Applied Optics. 35, 28, p. 5683-5691

Research output: Contribution to journalJournal articleResearchpeer-review

1991

Laser measurements in flames

Clausen, S., 1991, In : Dantec Inf.. 10, p. 5-6

Research output: Contribution to journalJournal articleCommunication

1990

Lasermåling i flammer

Clausen, S., 1990, In : Risønyt. 2, p. 8-9

Research output: Contribution to journalJournal articleResearch

Reactivity measurements of coke particles in five different flow reactors

Hustad, J. E., Aho, M. J., Hupa, M., Noopila, T., Sørensen, L. H., Clausen, S., Kiørboe, L., Gromulski, J., Bengtsson, M. & Leckner, B., 1990, In : Riv. Combustibili. 44, 10, p. 257-266

Research output: Contribution to journalJournal articleResearch