Forschung:

• Soot Modeling

Lehre:

• Thermodynamik I

• F. Loffredo, R. Langer, M. Vivenzo and H. Pitsch. Improving the Efficiency of Sensitivity Analysis Algorithms for Combustion Problems through Reformulation and Adjoint Methods. Work-in-Progress Poster, 40th International Symposium on Combustion, 2024.
• S. Girhe, A. Snackers, T. Lehmann, R. Langer, F. Loffredo, R. Glaznev, J. Beeckmann and H. Pitsch. Ammonia and ammonia/hydrogen combustion: Comprehensive quantitative assessment of kinetic models and examination of critical parameters. Combustion and Flame, vol. 267, page 113560, 2024. [DOI]
• M. Hellmuth, S. Girhe, J. Beeckmann, R. Langer and H. Pitsch. Blending effects on aromatics formation in iso-octane counterflow diffusion flames by adding dimethyl carbonate. International Sooting Flame Workshop, Milan, Italy, 2024.
• R. Langer, Q. Mao and H. Pitsch. A detailed kinetic model for aromatics formation from small hydrocarbon and gasoline surrogate fuel combustion. Combustion and Flame, 2022. [DOI]
• R. Langer, Q. Mao and H. Pitsch. A detailed kinetic model for aromatics formation from small hydrocarbon and gasoline surrogate fuel combustion. 6th International Workshop on Flame Chemistry, August 15 - 19, online, 2022.
• Q. Mao, L. Cai, R. Langer and H. Pitsch. The role of resonance-stabilized radical chain reactions in polycyclic aromatic hydrocarbon growth: Theoretical calculation and kinetic modeling. Proceedings of the Combustion Institute, vol. 38, pages 1459-1466, 2021.
• M. Hellmuth, R. Langer, B. Chen, M. Plümke and H. Pitsch. Impact factors on ion current for premixed laminar CH4-fuel blends. In Proceedings of the 10th European Combustion Meeting, April 14-15, Naples (Italy) / Online, 2021.
• G. Scialabba, R. Langer, A. Attili, L. Berger and H. Pitsch. The relevance of soot diffusion in counterflow laminar flame configurations. In Proceedings of the 10th European Combustion Meeting, April 14-15, Naples (Italy) / Online, 2021.
• R. Langer, J. Lotz, L. Cai, F. vom Lehn, K. Leppkes, U. Naumann and H. Pitsch. Adjoint sensitivity analysis of kinetic, thermochemical, and transport data of nitrogen and ammonia chemistry. Proceedings of the Combustion Institute, vol. 38, pages 777-785, 2021. [DOI]
• L. Cai, F. vom Lehn, R. Langer and H. Pitsch. Highly-automated model development for promising e-fuels from renewable electricity. In Fuels, Processes, and Combustion Physics in the Energy Transformation - 715. WE-Heraeus-Seminar, 08-12 March, Bad Honnef, Germany, 2020.
• L. Cai, S. Jacobs, R. Langer, F. vom Lehn, K.A. Heufer and H. Pitsch. Auto-ignition of oxymethylene ethers (OMEn, n = 2–4) as promising synthetic e-fuels from renewable electricity: shock tube experiments and automatic mechanism generation. Fuel, vol. 264, page 116711, 2020. [DOI]
• T. Falkenstein, A. Rezchikova, R. Langer, M. Bode, S. Kang and H. Pitsch. The role of differential diffusion during early flame kernel development under engine conditions - part I: Analysis of the heat-release-rate response. Combustion and Flame, vol. 221, pages 502-515, 11 2020. [DOI]
• L. Cai, S. Jacob, F. vom Lehn, R. Langer, K.A. Heufer and H. Pitsch. Automatic mechanism generation for auto-ignition of the promising e-fuels oxymethylene ethers (OMEn, n = 2-4). In Proceedings of the 1st International Conference on Smart Energy Carriers, January 21-23, Naples, Italy, 2019.
• A. Wick, R. Langer, A. Attili, M. Frenklach and H. Pitsch. Statistical Modeling of Aerosol Dynamics in a Turbulent Flame. In Seventeenth International Conference on Numerical Combustion, May 6-8, Aachen, Germany, 2019.
• R. Langer, A. Cuoci, L. Cai, U. Burke, C. Olm, H. Curran, T. Turányi, S. Klippenstein and H. Pitsch. Comparing the results and performance of chemical kinetic modeling software. In 4th International Workshop on Flame Chemistry, July 28th-29th, Dublin, Ireland, 2018.
• R. Langer, A. Cuoci, L. Cai, U. Burke, C. Olm, H. Curran, T. Turányi and H. Pitsch. A Comparison of Numerical Frameworks for Modelling Homogeneous Reactors and Laminar Flames. In Joint Meeting of the German and Italian Sections of the Combustion Institute, May 23 - 26, Sorrento, Italy, 2018.
• L. Cai, R. Langer and H. Pitsch. Automatic chemical mechanism generation using optimized rate rules. Case study: Ether oxidation. In Sixteenth International Conference on Numerical Combustion, April 3rd - 5th, Orlando, USA, 2017.