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 Jakobs

Dr.-Ing. Tobias Jakobs

room: B430/R101
phone: (+49 721 608-)26763
Tobias JakobsXyb9∂kit edu

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)

 

Veröffentlichungen


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 Experimentelle Untersuchung zur Zerstäubung viskoser Fluide unter Verwendung einer neu entwickelten Hybrid-Düse basierend auf dem Effervescent-Konzept Markus Wirth
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
Praxisbericht Ortsaufgelöste Untersuchungen im Spray von Zweistoffdüsen mit einem PDA-System Philipp Bergdolt
Diplomarbeit Untersuchungen im Spray von aussenmischenden Zweistoffdüsen - Variation von Reaktordruck und dimensionslosen Kennzahlen Lars Schwarzer
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
Praxisbericht Untersuchungen im Spray einer Zweistoffdüse bei Überdruckbedingungen Philipp Bergdolt
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