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LEAT Staff

Dipl.-Phys. Dr.-Ing. Martin Schiemann
Department of Energy Plant Technology
Ruhr-Universität Bochum
Universitätsstraße 150, IC 2/121
D-44780 Bochum
Phone: +49 (0)234 / 32-27362
E-Mail: schiemann(at)

Fields of activity:

Optical measurement

Characterization of the ignition behavior of solid fuels

Spray rosting reactors in the steel industry


Graeser, P.; Schiemann, M., Emissivity of burning bituminous coal char particles - burnout effects, Fuel, accepted for publication, 2017
Gronarz, T.; Schulze, J.C.; Laemmerhold, M.; Graeser, P.; Goreoda, J.; Kez, V.; Habermehl, M.; Schmieann, M.; Stroehle, J.; Epple, B.; Scherer, V.; Kneer, R., Quantification of the influence of submodels on radiative heat transport in an oxy-fuel operated boiler, Fuel Processing Technology, accepted for publication, 2016
Apicella, B.; Senneca, O.; Russo, C.; Heuer, S.; Cortese, L.; Cerciello, F.; Scherer, V.; Schiemann, M.; Ciajolo, A., Separation and characterization of carbonaceous particulate (soot and char) produced from fast pyrolysis of coal in inert and CO2 rich atmospheres, FUEL, accepted for publication, 2016
Farazi, S.; Sadr, M.; Kang, S.; Schiemann, M.; Vorobiev, N.; Scherer, V., Resolved simulations of single char particle combustion in a laminar flow field, FUEL, accepted for publication, 2016
X. Ren, R. Sun, X. Meng, N. Vorobiev, M. Schiemann, Y.A. Levendis, Carbon, Sulfur and Nitrogen Oxide Emissions from Combustion of Pulverized Raw and Torrefied Biomass, Fuel, accepted for publication
P. Graeser, M. Schiemann, Char particle emissivity of two coal chars in oxy-fuel atmospheres, Fuel 183 (2016) 405-413.
M. Schiemann, P. Fischer, J. Bergthorson, G. Schmid, D. Taroata, Combustion of Lithium Particles in N2 Reaction Rates, Combustion Science and Technology (2016), accepted for publication.
N. Vorobiev, M. Geier, M. Schiemann, V. Scherer, Experimentation for Char Combustion Kinetics Measurements: Bias from Char Preparation, Fuel Processing Technolgy 151 (2016) 151-165.
S. Heuer, O. Senneca, A. Wütscher, H. Düdder, M. Schiemann, M. Muhler, V. Scherer, Effects of oxy-fuel conditions on the products of pyrolysis in a drop tube reactor, Fuel Processing Technolgy 150 (2016) 41-49.
R. Knappstein, G. Kuenne, A. Ketelheun, J. Köser, L. Becker, S. Heuer, M. Schiemann, V. Scherer, A. Dreizler, A. Sadiki, J. Janicka, Devolatilization and volatiles reaction of individual coal particles in the context of FGM tabulated chemistry, Combustion and Flame 169 (2016) 72-84.
H. Düdder, A. Wütscher, N. Vorobiev, M. Schiemann, V. Scherer, M. Muhler, Oxidation characteristics of a cellulose-derived hydrochar in thermogravimetric and laminar flow burner experiments, Fuel Processing Technology 148 (2016) 85-90.
T. Oschmann, M. Schiemann, H. Kruggel-Emden, Development and verification of a resolved 3D inner particle heat transfer model for the Discrete Element Method (DEM), Powder Technology 291 (2016) 392-407.
M. Schiemann, S. Haarmann, S. Wirtz, V. Scherer, M. Ehmann, C. Kuhr, Combustion characterisation of fuels for power plants: From laboratory experiments to boiler furnace simulation, VGB PowerTech. 3 (2016) 3340.
M. Schiemann, J. Bergthorson, P. Fischer, V. Scherer, D. Taroata, G. Schmid, A Review on Lithium Combustion, Applied Energy 162 (2016) 948-965.
M. Schiemann, N. Vorobiev, V. Scherer, A Stereoscopic Pyrometer for Char Combustion Characterization, Applied Optics 54 (2015) 1097-1108.
M. Schiemann, M. Geier, C. Shaddix, N. Vorobiev, V. Scherer, Determination of char combustion kinetics parameters: Comparison of point detector and imaging-based particle-sizing pyrometry, Review of Scientific Instruments 85, 075114 (2014).
F. Greffrath, J. Gorewoda, M. Schiemann, V. Scherer, Influence of chemical composition and physical structure on normal radiant emittance characteristics of ash deposits, FUEL 134 (2014) 307-314.
M. Schiemann, S. Haarmann, N. Vorobiev, Char burning Kinetics from Imaging Pyrometry: Particle Shape Effects, FUEL 134 (2014) 53-62.
M. Schiemann, S. Wirtz, V. Scherer, F. Bärhold, Spray Roasting of Iron Chloride FeCl2: Numerical Modelling of Industrial Scale Reactors, Powder Technology. 245 (2013) 70-79.
S. Haarmann, M. Schiemann, V. Scherer, On the combustion behaviour of pulverized torrefied biomass: Experiments on pyrolysis and char burn out, in: The 38th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Fl, 2013: pp. 357-370.
S. Haarmann, M. Schiemann, V. Scherer, Experimental Investigation on the Combustion Behaviour of Torrefied Biomass, in: 21st European Biomass Conference, Kopenhagen, 2013.
M. Schiemann, S. Wirtz, V. Scherer, F. Bärhold, Spray roasting of iron chloride FeCl2: laboratory scale experiments and a model for numerical simulation, Powder Technology. 228 (2012) 301-308.
M. Schiemann, S. Wirtz, V. Scherer, Optical measurement of temperature, particle size and particle shape of burning biomass particles, in: The 36th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, 2011.
H. Wakamatsu, T. Mine, M. Schiemann, V. Scherer, A. Gwosdz, A Study on Char Burning Rate for Single Particle Combustion with in-situ Measurement under Oxyfuel Condition, in: The 36th International Technical Conference on Clean Coal & Fuel Systems, 2011.
M. Schiemann, S. Wirtz, V. Scherer, Optical measurement of pulverized coal combustion in a laminar flow reactor: ignition, particle temperature, and alkali release, in: International Conference on Clombustion and Energy Utilization, Mugla (Turkey), 2010.
M. Schiemann, S. Wirtz, V. Scherer, Gas phase alkali release from solid fuels determined with a low-cost fiber spectrometer, in: The 35th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Fl, 2010: pp. 571-578.
M. Schiemann, V. Scherer, S. Wirtz, Optical Coal Particle Temperature Measurement under Oxy-Fuel Conditions: Measurement Methodology and Initial Results, Chemical Engineering & Technology. 32 (2009) 2000-2004.