Institute for Technical Chemistry (ITC)
 Jakobs

Dr.-Ing. Tobias Jakobs

  • Karlsruher Institut für Technologie
    Institut für Technische Chemie
    Postfach 3640
    76021 - Karlsruhe

Department Gasification Technology

 

 
 

Main Activities:

 
  • Atomization of high viscous liquids and suspensions (ATMO)
     
  • Influence of ambient pressure on atomization (PAT)
     
  • Development of twin-fluid nozzles for entrained flow gasification
     

 

Test Facilities:

 


 

Scientific Career:

 

since 2015 Head of Research Group Liquid Fuels / Atomization at Institute for Technical Chemistry (ITC), KIT
13.03.2015 PhD: Influence of ambient pressure on spray quality of external mixing twin fluid atomizers
2007 - 2015 Research Assistant at ITC - KIT
31.03.2007 Diploma Thesis at BASF: Flame monitoring of low rank fuels
2001 - 2007 Study of Chemical Engineering at University of Karlsruhe (TH)

 

Awards:

2017 ASME Turbo Expo, Best Paper Award in the Section Coal, Biomass & Alternative Fuels - Influence of Nozzle Design Upon the Primary Jet Breakup of High-Viscosity Fuels for Entrained Flow Gasification

Veröffentlichungen


Air-Assisted Atomization at Constant Mass and Momentum Flow Rate: Investigation into the Ambient Pressure Influence With the Smoothed Particle Hydrodynamics Method.
Chaussonnet, G.; Joshi, S.; Wachter, S.; Koch, R.; Jakobs, T.; Kolb, T.; Bauer, H.-J.
2020. Journal of engineering for gas turbines and power, 142 (3), 031019. doi:10.1115/1.4044968
Numerical and Experimental Investigations of Primary Breakup of High-Viscous Fluid at Elevated Pressure [in press].
Zhang, F.; Zirwes, T.; Wachter, S.; Jakobs, T.; Habisreuther, P.; Zarzalis, N.; Dimosthenis, T.; Kolb, T.
2019. 29th European Conference on Liquid Atomization and Spray Systems, Paris, 2-4 Sep 2019
Comparison of spray quality for two different flow configurations: Central liquid jet versus annular liquid sheet.
Wachter, S.; Jakobs, T.; Kolb, T.
2019. 29th European Conference on Liquid Atomization and Spray Systems, Paris, 2-4 Sep 2019
Application of the SPH Method to Predict Primary Breakup in Complex Geometries.
Chaussonnet, G.; Dauch, T.; Braun, S.; Keller, M.; Kaden, J.; Schwitzke, C.; Jakobs, T.; Koch, R.; Bauer, H.-J.
2019. High Performance Computing in Science and Engineering ’ 18 – Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2018. Ed.: W. Nagel, 309–322, Springer International Publishing, Cham. doi:10.1007/978-3-030-13325-2_19
Untersuchung von Brennerdüsen bei erhöhtem Systemdruck.
Wachter, S.; Jakobs, T.; Kolb, T.
2019, April 3. Jahrestreffen der ProcessNet-Fachgruppe Hochtemperaturtechnik (2019), Karlsruhe, Germany, April 2–3, 2019
Numerical and Experimental Investigations of Primary Breakup of High-Viscous Fluid at Elevated Pressure [in press].
Zhang, F.; Zirwes, T.; Wachter, S.; Jakobs, T.; Habisreuther, P.; Zarzalis, N.; Trimis, D.; Kolb, T.
2019. 29th European Conference Liquid Atomization and Spray Systems (ILASS 2019), Paris, France, September 2–4, 2019
Effect of elevated pressure on primary jet-breakup: Basic research for entrained flow gasification.
Zhang, F.; Müller, T.; Zirwes, T.; Wachter, S.; Jakobs, T.; Habisreuther, P.; Zarzalis, N.; Trimis, D.; Kolb, T.
2019. 29. Deutscher Flammentag (2019), Bochum, Germany, September 17–18, 2019
Air-Assisted Atomization at Constant Mass and Momentum Flow Rate: Investigation of the Ambient Pressure Influence with the SPH Method [in press].
Chaussonnet, G.; Joshi, S.; Wachter, S.; Koch, R.; Jakobs, T.; Kolb, T.; Bauer, H.-J.
2019. Proceedings of the ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition (GT2019)
Toward the development of a virtual spray test-rig using the Smoothed Particle Hydrodynamics method.
Chaussonnet, G.; Braun, S.; Dauch, T.; Keller, M.; Sänger, A.; Jakobs, T.; Koch, R.; Kolb, T.; Bauer, H.-J.
2019. Computers & fluids, 180, 68–81. doi:10.1016/j.compfluid.2019.01.010
Influence of Reactor Pressure on the Primary Jet Breakup of High-Viscosity Fuels: Basic Research for Simulation-Assisted Design of Low-Grade Fuel Burner.
Sänger, A.; Jakobs, T.; Kolb, T.; Müller, T.; Kadel, K.; Habisreuther, P.; Trimis, D.; Zarzalis, N.
2018. ASME Turbo Expo : Turbomachinery Technical Conference and Exposition (GT), Oslo, Norway, June 11–15, 2018. Vol.: 3, GT2018–75950, ASME, New York (NY). doi:10.1115/GT2018-75950
Simulation of the Primary Jet Breakup of Non-Newtonian Fuels: Basic Research for Simulation-Assisted Design of Low-Grade Fuel Burner.
Müller, T.; Kadel, K.; Habisreuther, P.; Trimis, D.; Zarzalis, N.; Sänger, A.; Jakobs, T.; Kolb, T.
2018. ASME Turbo Expo : Turbomachinery Technical Conference and Exposition GT2018, Oslo, Norway, June 11–15, 2018. Vol.: 3, GT2018–75945, ASME, New York (NY). doi:10.1115/GT2018-75945
Three-dimensional SPH simulation of a twin-fluid atomizer operating at high pressure [in press].
Chaussonnet, G.; Braun, S.; Dauch, T.; Keller, M.; Kaden, J.; Jakobs, T.; Schwitzke, C.; Koch, R.; Bauer, H.-J.
2018. Proceedings of the 14th International Conference on Liquid Atomization & Spray Systems (ICLASS2018), Chicago, IL, July 22-26, 2018
Entrained Flow Gasification Part 1 : Gasification of Glycol in an Atmospheric-pressure Experimental Rig.
Fleck, S.; Santo, U.; Hotz, C.; Jakobs, T.; Eckel, G.; Mancini, M.; Weber, R.; Kolb, T.
2018. Fuel, 217, 306–319. doi:10.1016/j.fuel.2017.12.077
Smoothed Particle Hydrodynamics Simulation of an Air-Assisted Atomizer Operating at High Pressure: Influence of Non-Newtonian Effects.
Chaussonnet, G.; Koch, R.; Bauer, H.-J.; Sänger, A.; Jakobs, T.; Kolb, T.
2018. Journal of fluids engineering, 140 (6), Art. Nr.: 061301. doi:10.1115/1.4038753
Coke Slurries with Improved Higher Heating Value and Good Processability via Particle Shape Design.
Jampolski, L.; Jakobs, T.; Kolb, T.; Willenbacher, N.
2017. Chemical engineering & technology, 40 (10), 1885–1894. doi:10.1002/ceat.201700061
SPH Simulation of an Air-Assisted Atomizer Operating at High Pressure : Influence of Non-Newtonian Effects.
Chaussonnet, G.; Koch, R.; Bauer, H.-J.; Sänger, A.; Jakobs, T.; Kolb, T.
2017. Proceedings of ASME Turbo Expo 2017 : Turbomachinery Technical Conference & Exposition, Volume 3 : Coal, Biomass and Alternative Fuels, Cycle Innovations; Electric Power, Industrial and Cogeneration Applications, Organic Rankine Cycle Power Systems, Charlotte, North Carolina, USA, 26th - 30th June 2017, Art.Nr. GT2017–63033, ASME, New York (NY). doi:10.1115/GT2017-63033
Influence of nozzle design upon the primary jet breakup of high-viscosity fuels for entrained flow gasification.
Müller, T.; Dullenkopf, A.; Sänger, A.; Habisreuther, P.; Jakobs, T.; Zarzalis, N.; Kolb, T.
2017. Proceedings of the ASME Turbo Expo 2017: Turbine Technical Conference and Expo, ASME, Charlotte, NC, June 26-30, 2017
Influence of Nozzle Design Upon the Primary Jet Breakup of High-Viscosity Fuels for Entrained Flow Gasification.
Müller, T.; Dullenkopf, A.; Habisreuther, P.; Zarzalis, N.; Sänger, A.; Jakobs, T.; Kolb, T.
2017. Proceedings of the ASME Turbo Expo 2017 : Turbomachinery Technical Conference and Exposition, Volume 3 : Coal, Biomass and Alternative Fuels : Cycle Innovations : Electric Power : Industrial and Cogeneration Applications : Organic Rankine Cycle Power Systems, Charlotte, North Carolina, USA, 26th - 30th June 2017, Art. Nr. V003T03A002, ASME, New York (NY). doi:10.1115/GT2017-63198
Tailoring the Flow Behavior of Coke Water Slurries for Entrained Flow Gasification.
Jampolski, L.; Sänger, A.; Jakobs, T.; Kolb, T.; Willenbacher, N.
2016. Advanced Biofuels Symposium 2016, Vancouver, CDN, 06.-08.07.2016
Flow Behavior and Aging of Pyrolysis Oils from Different Feedstocks.
Jampolski, L.; Tomasi-Morgano, M.; Jakobs, T.; Leibold, H.; Kolb, T.; Willenbacher, N.
2016. Advanced Biofuels Symposium 2016, 06.-08.07.2016, Vancouver, Canada
Untersuchung des Zerfalls des Brennstoffstrahls bei hochviskosen Brennstoffen im Flugstromvergaser.
Müller, T.; Sänger, A.; Habisreuther, P.; Jakobs, T.; Kolb, T.; Zarzalis, N.
2016. Jahrestreffen der ProcessNet Fachgruppe „Hochtemperaturtechnik”, Erlangen-Nürnberg, 10.-11. März 2016
Investigation on the jet breakup of high-viscous fuels for entrained flow gasification.
Müller, T.; Habisreuther, P.; Zarzalis, N.; Sänger, A.; Jakobs, T.; Kolb, T.
2016. ASME Turbo Expo. Turbomachinery Technical Conference and Exposition, Seoul, South Korea, June 14-16, 2016
Zerstäubung hochviskoser Brennstoffe aus Restbiomasse für die Hochdruck-Flugstromvergasung.
Jakobs, T.; Sänger, A.; Kolb, T.
2016. Jahrestreffen der ProcessNet Fachgruppen „Energieverfahrenstechnik” und „Abfallbehandlung und Wertstoffrückgewinnung", Frankfurt am Main, 23.-24.02.2016
Investigations on fuel rheology and spray quality for high pressure entrained flow gasification of biomass based fuels.
Jakobs, T.; Sänger, A.; Jampolski, L.; Willenbacher, N.; Kolb, T.
2016. Innovative Coal Value Chains. 8th International Freiberg Conference on IGCC & XtL Technologies. Köln, 12.-16.06.2016
Einfluss des Fließverhaltens von Koks-Wasser-Suspensionen im Rahmen des bioliq®-Verfahrens auf den Prozess.
Jampolski, L.; Jakobs, T.; Kolb, T.; Willenbacher, N.
2016. Rheologie als Schlüssel zu einem erfolgreichen Produktdesign. Gemeinsame Diskussionstagung der Deutschen Rheologischen Gesellschaft und der ProcessNet Fachgruppe „Rheologie" (DRG/ProcessNet – Rheologentagung), Berlin, 14.-15.03.2016
Using primary instability analysis for determination of apparent liquid viscosity at jet breakup atomizing non-Newtonian Fluids.
Sänger, A.; Jakobs, T.; Kolb, T.
2016. ILASS - Europe 2016, 27th Annual Conference on Liquid Atomization and Spray Systems, Brighton, UK, 04.-07.09.2016, Paper AA-18, 8 S., Fraunhofer IRB, München
Using primary instability analysis for determination of apparent liquid viscosity at jet breakup atomizing non-Newtonian Fluids.
Sänger, A.; Jakobs, T.; Kolb, T.
2016. ILASS - Europe 2016, 27th Annual Conference on Liquid Atomization and Spray Systems, Brighton, UK, 04.-07.09.2016
Investigation on Jet Breakup of High-Viscous Fuels for Entrained Flow Gasification.
Müller, T.; Habisreuther, P.; Zarzalis, N.; Sänger, A.; Jakobs, T.; Kolb, T.
2016. ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, Seoul, South Korea, June 13–17, 2016, Volume 3: Coal, Biomass and Alternative Fuels, V003T03A003/1–11, ASME, New York (NY). doi:10.1115/GT2016-56371
Simulation of the primary breakup of a high-viscosity liquid jet by a coaxial annular gas flow.
Müller, T.; Sänger, A.; Habisreuther, P.; Jakobs, T.; Trimis, D.; Kolb, T.; Zarzalis, N.
2016. International journal of multiphase flow, 87, 212–228. doi:10.1016/j.ijmultiphaseflow.2016.09.008
Improving the processability of coke water slurries for entrained flow gasification.
Jampolski, L.; Sänger, A.; Jakobs, T.; Guthausen, G.; Kolb, T.; Willenbacher, N.
2016. Fuel, 185, 102–111. doi:10.1016/j.fuel.2016.07.102
SPH Simulation of a Twin-Fluid Atomizer Operating with a High Viscosity Liquid.
Chaussonnet, G.; Braun, S.; Wieth, L.; Kolb, T.; Koch, R.; Bauer, H.-J.; Sänger, A.; Jakobs, T.; Djordjevic, N.
2015. 13th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS 2015), Tainan, TWN, August 23 - 27, 2015. Ed.: T. Lin, 1–8, National Cheng Kung University, Taiwan, TWN. doi:10.13140/RG.2.1.4320.7128
Tailoring of coke-water-slurries for EFG.
Jampolski, L.; Sänger, A.; Jakobs, T.; Kolb, T.; Willenbacher, N.
2015. EST - the International Conference and Exhibition on Energy, Science & Technology : Karlsruhe Convention Centre, Karlsruhe, Germany, 20 - 22 May 2015
Experimental investigation on the influence of ambient pressure on twin-fluid atomization of liquids with various viscosities.
Sänger, A.; Jakobs, T.; Djordjevic, N.; Kolb, T.
2015. ICLASS 2015 / 13th International Conference on Liquid Atomization and Spray Systems : August 23-27, 2015, Tainan, Taiwan. Chairman: Ta-Hui Lin, A2–1
Experimental investigation on the influence of ambient pressure on twin-fluid atomization of liquids with various viscosities.
Sänger, A.; Jakobs, T.; Djordjevic, N.; Kolb, T.
2015. ICLASS 2015, 13th Triennial Intenational Conference on Liquid Atomization and Spray Systems, Tainan, Taiwan, 23.-27.08.2015
Processing and Atomization of Complex Fluids for Entrained Flow Gasification.
Sänger, A.; Jakobs, T.; Jampolski, L.; Willenbacher, N.; Kolb, T.
2015. International Conference and Exhibition "Energy, Science and Technology" (EST) Karlsruhe, 20.-22.05.2015
Zerstäubung von biosyncrude.
Jakobs, T.; Sänger, A.; Jampolski, G.; Chaussonnet, G.; Müller, T.; Willenbacher, N.; Zarzalis, N.; Bauer, H.-J.; Kolb, T.
2015. Bioliq Statusseminar - Querschnittsverbund Sustainable Bioeconomy, Karlsruhe, 01.12.2015
Influence of reactor pressure on twin-fluid atomization: Basic investigations on burner design for high-pressure entrained flow gasifier.
Jakobs, T.; Djordjevic, N.; Sänger, A.; Zarzalis, N.; Kolb, T.
2015. Atomization and sprays, 25 (12), 1081–1105. doi:10.1615/AtomizSpr.2015011558
Processing and Atomization of Complex Fluids for Entrained Flow Gasification Application.
Sänger, A.; Jakobs, T.; Djordjevic, N.; Jampolski, L.; Kolb, T.; Willenbacher, N.
2015. Energy, Science and Technology 2015. The energy conference for scientists and researchers. Book of Abstracts, EST, Energy Science Technology, International Conference & Exhibition, 20-22 May 2015, Karlsruhe, Germany
Effect of primary instability of a high viscous liquid jet on the spray quality generated by a twin-fluid atomizer.
Sänger, A.; Jakobs, T.; Djordjevic, N.; Kolb, T.
2014, September 8. ILASS - Europe 2014, 26th Annual Conference on Liquid Atomization and Spray Systems, Bremen, 08.-10. September 2014
Basic investigations on burner design for high pressure entrained flow gasifier: Influence of pressure and fluid viscosity on twin fluid atomization.
Sänger, A.; Kolb, T.; Jakobs, T.; Djordjevic, N.; Zarzalis, N.
2013. 26.Deutscher Flammentag, Duisburg, 11.-12.September 2013
Basic investigations on burner design for high pressure entrained flow gasifier: Influence of pressure and fluid viscosity on twin fluid atomization.
Sänger, A.; Kolb, T.; Jakobs, T.; Djordjevic, N.; Zarzalis, N.
2013. Verbrennung und Feuerung : 26.Deutscher Flammentag, Duisburg, 11.-12.September 2013, 321–331, VDI-Verl.GmbH, Düsseldorf
Chemical energy storage.
Jakobs, T.; Kolb, T.
2013. Vortr.: Karlsruher Institut für Technologie (KIT), Karlsruhe, December 12, 2013
Influence of ambient pressure on twin fluid atomization R&D work for high pressure entrained flow gasification.
Jakobs, T.; Djordjevic, N.; Fleck, S.; Zarzalis, N.; Kolb, T.
2012. 12th International Conference on Liquid Atomization and Spray Systems (ICLASS 2012), Heidelberg, September 2-6, 2012
Influence of ambient pressure on twin fluid atomization R&D work for high pressure entrained flow gasification.
Jakobs, T.; Djordjevic, N.; Fleck, S.; Zarzalis, N.; Kolb, T.
2012. 12th International Conference on Liquid Atomization and Spray Systems (ICLASS 2012), Heidelberg, September 2-6, 2012. Ed.: E. Gutheil, CD-ROM, ILASS Europe, Neapel
Gasification of high viscous slurry R&D on atomization and numerical simulation.
Jakobs, T.; Djordjevic, N.; Fleck, S.; Mancini, M.; Weber, R.; Kolb, T.
2012. Applied Energy, 93, 449–456. doi:10.1016/j.apenergy.2011.12.026
Biomass to syngas by entrained-flow gasification R&D on atomization and fuel conversion.
Kolb, T.; Fleck, S.; Jakobs, T.; Seifert, H.; Zarzalis, N.
2011. 35th Internat.Technical Conf.on Clean Coal and Fuel Systems 2010, Clearwater, Fla., June 6-10, 2010
Gasification of high viscous slurry R&D on atomization and numerical simulation.
Jakobs, T.; Fleck, S.; Mancini, M.; Weber, R.; Kolb, T.
2011. 36th Internat.Technical Conf.on Clean Coal and Fuel Systems 2011, Clearwater, Fla., June 5-9, 2011
Atomization at high reactor pressures. R&D work for high pressure entrained flow gasification.
Jakobs, T.; Djordjevic, N.; Fleck, S.; Zarzalis, N.; Kolb, T.
2011. 25.Deutscher Flammentag, Karlsruhe, 14.-15.September 2011
Entrained flow gasification of biomass based slurry. Influence of gasificaiton conditions on syngas quality.
Flamme, M.; Fleck, S.; Stoesser, P.; Jakobs, T.; Kolb, T.
2011. tcbiomass 2011 : The Internat.Conf.on Thermomechanical Conversion Science, Chicago, Ill, September 28-30, 2011 Folien online veröff
Zerstäubung hochviskoser Fluide bei Überdruckbedingungen.
Jakobs, T.
2011. Vortr.: Engler-Bunte Institut, Bereich Chemische Energieträger, Karlsruhe, 25.Oktober 2011
Biomass to syngas by entrained-flow gasification R&D on atomization and fuel conversion.
Kolb, T.; Fleck, S.; Jakobs, T.; Seifert, H.; Zarzalis, N.
2011. Sakkestad, B.A. [Hrsg.] Coal: Rising to new Challenges : Proc.of the 35th Internat.Technical Conf.on Clean Coal and Fuel Systems 2010, Clearwater, Fla., June 6-10, 2010 CD-ROM Gaithersburg, Md. : Coal Technology Association, 2010
Gasification of high viscous slurry R&D on atomization and numerical simulation.
Jakobs, T.; Fleck, S.; Mancini, M.; Weber, R.; Kolb, T.
2011. Sakkestad, B.A. [Hrsg.] The Clearwater Clean Coal Conf. : 36th Internat.Technical Conf.on Clean Coal and Fuel Systems 2011, Clearwater, Fla., June 5-9, 2011 Red Hook, N.Y. : Curren Associates, 2011, 15–26
Atomization at high reactor pressures. R&D work for high pressure entrained flow gasification.
Jakobs, T.; Djordjevic, N.; Fleck, S.; Zarzalis, N.; Kolb, T.
2011. Verbrennung und Feuerung : 25.Deutscher Flammentag, Karlsruhe, 14.-15.September 2011 Düsseldorf : VDI-Verl.GmbH, 2011 (VDI-Berichte ; 2119) inkl.CD-ROM, 393–399
PAT - Zerstäubung bei hohem Druck.
Jakobs, T.; Kolb, T.
2010. KIT Energy News, (1), 12–13
Production of syngas from biomass-based slurry in an entrained-flow gasifier.
Kolb, T.; Jakobs, T.; Pantouflas, E.; Zarzalis, N.
2009. Verbrennung und Feuerung : 24.Deutscher Flammentag, Bochum, 16.-17.September 2009 Düsseldorf : VDI-Verl.GmbH, 2009 (VDI-Berichte ; 2056) inkl.CD-ROM
Investigations on atomization and gasification of biomass-based slurry at pressurized conditions.
Jakobs, T.; Kolb, T.
2009. 5th NoE Annual Researchers’ Meeting, Stratford, GB, October 21, 2008
Entrained-flow gasification of biomass-based slurry. Investigations on atomization and fuel conversion.
Kolb, T.; Zarzalis, N.; Santo, U.; Jakobs, T.; Eberhard, M.; Pantouflas, E.
2008. Bioenergy NoE Newsletter, 4# 2, 8
Current and completed Study- and Diploma Theses:
type topic tutor person in charge
Bachelorarbeit Analyse der Spraycharakterisik von realen AdBlue® Sprays über einem weiten Temperaturbereich Timo Stemler
Bachelorarbeit Bestimmung von Zündgrenzen und Mindestzündenergie an den Systemen Magnesium-Luft, Titancarbid-Luft und Zirkoncarbid-Luft Michael Schneider
Praxisbericht Einfluss des Primärstrahldurchmessers der Flüssigkeit auf die Spraygüte aussenmischender Zweistoffdüsen Hannah Schmid
Bachelorarbeit Experimentelle Untersuchung zur Zerstäubung viskoser Fluide unter Verwendung einer neu entwickelten Hybrid-Düse basierend auf dem Effervescent-Konzept Markus Wirth
Bachelorarbeit Inbetriebnahme eines Shadowgraphie-Messsystems zur Untersuchung des Reaktordruckeinflusses auf das Spray einer Zweistoffdüse Simon Griesbaum
Praxisbericht Laseroptische Messungen im Spray eines luftgestützten Zweistoffzerstäubers Simon Griesbaum
Praxisbericht Ortsaufgelöste Untersuchungen im Spray von Zweistoffdüsen mit einem PDA-System Philipp Bergdolt
Praxisbericht Tropfengrößenmessung im Spray außenmischender Zweistoffdüsen und der Einfluss der Spraygüte auf die Flugstromvergasung Philipp Bergdolt
Diplomarbeit Untersuchung des Sprays außenmischender Zweistoffdüsen – Einfluss des Reaktordrucks auf die Spraygüte Katharina Bär
Masterarbeit Untersuchung einer Zweistoff-Zerstäuberdüse mit Flüssigphase im Ringspalt - Einfluss der Gas-to-Liquid Ratio auf die Zerstäubung Moritz Dahlinger
Praxisbericht Untersuchungen im Spray einer Zweistoffdüse bei Überdruckbedingungen Philipp Bergdolt
Diplomarbeit Untersuchungen im Spray von aussenmischenden Zweistoffdüsen - Variation von Reaktordruck und dimensionslosen Kennzahlen Lars Schwarzer