Prof. Dr.-Ing. Jürgen Karl
Leuchtturm der Energieforschung/ Person
/ Prof. Dr.-Ing. Jürgen Karl

Prof. Dr.-Ing. Jürgen Karl

Lehrstuhlinhaber
Prof. Dr.-Ing. Jürgen Karl
FAU Erlangen-Nürnberg / Lehrstuhl für Energieverfahrenstechnik (EVT)
+49 911/5302-9021
+49 911/5302-9030

Über die Person

Prof. Dr.-Ing. Jürgen Karl ist Experte im Bereich Energieverfahrenstechnik. Er beschäftigt sich in seiner Lehre und Forschung vor allem mit den Thema Verbrennung und Vergasung von Energieträgern, insbesondere Biomasse.

  • Energetische Nutzung von Biomasse
  • Verbrennung und Vergasung in Wirbelschichten
  • Methanisierung und SOFC-Brennstoffzellen
  • Carbon Capture und Sequestration

2016-2018

erster Prodekan der Technischen Fakultät an der Universität Erlangen-Nürnberg

seit 2011

Inhaber des Lehrstuhls für Energieverfahrenstechnik an der Universität Erlangen-Nürnberg

2007-2011

Institutsleiter und Universitätsprofessor am Institut für Wärmetechnik der Technischen Universität Graz

2007

Gründung der Agnion Energy Inc. – Start-Up zur Entwicklung und Vermarktung einer innovativen Technologie für die allotherme Vergasung von Biomasse – des Biomass Heatpipe-Reformers (www.agnion.net)

2003-2004

Professorenvertretung am Lehrstuhl für Energieanlagen der Universität Rostock

1992-2007

Promotion und Habilitation am Lehrstuhl für Thermische Kraftanlagen (heute Lehrstuhl für Energiesysteme) der Technischen Universität München

1987-1992

Studium Maschinenbau, Fachrichtung Verfahrenstechnik an der TU München

  • Koordination der EU-Projekte BioHPR, BioCellus, CO2freeSNG
  • Gutachter (Evaluator) für das 6. und 7. Rahmenprogramm der EU
  • Mitglied der Technical Advisory Group TGC3 des Research Funds Coal and Steel der EU
  • Mitglied der Processnet-Fachgruppen „Hochtemperaturtechnik“ und „Energieverfahrenstechnik“

Im November 2018 veröffentlichte Prof. Karl ein Sachbuch mit dem Titel Klimawende - Eine Energiebilanz für morgen. Mehr Informationen dazu auf der Lehrstuhlhomepage.

Publikationen

Hier finden Sie alle bisher veröffentlichten Publikationen – Zeitschriftenartikel, Rezensionen, Entscheidungsanmerkungen, Fallbesprechungen, Sammelwerke, Kommentare, Konferenz- oder Diskussionsberichte, Konferenzbeiträge und andere Beiträge, Editorials, Festschriften usw.
Weitzer Maximilian, Mueller Dominik, Karl Juergen (2022)
Two-phase expansion processes in heat pump - ORC systems (Carnot batteries) with volumetric machines for enhanced off-design efficiency
Renewable Energy
Alexander Hauser, Michael Neubert, Alexander Feldner, Alexander Horn, Fabian Grimm, Jürgen Karl (2022)
Design and Implementation of an Additively Manufactured Reactor Concept for the Catalytic Methanation
Applied Sciences
Sebastian Kolb, Jakob Müller, Natalia Luna-Jaspe, Jürgen Karl (2022)
Renewable hydrogen imports for the German energy transition – A comparative life cycle assessment
Journal of Cleaner Production
Hauser Alexander, Wolf-Zoellner Philipp, Haag Stephane, Dettori Stefano, Tang Xiaoliang, Mighani Moein, Matino Ismael, Mocci Claudio, Colla Valentina, Kolb Sebastian, Bampaou Michael, Panopoulos Kyriakos, Kieberger Nina, Rechberger Katharina, Karl Juergen (2022)
Valorizing Steelworks Gases by Coupling Novel Methane and Methanol Synthesis Reactors with an Economic Hybrid Model Predictive Controller
Metals
Steffen Leimbach, Johannes Lukas, Sebastian Kolb, Lei Yang, Thomas Plankenbühler, Marcello Sega, Jens Harting, Jürgen Karl (2022)
Early Detection of Agglomeration in Fluidized Beds by Means of Frequency Analysis of Pressure Fluctuations
Energy & Fuels
Tanja Schneider, Dominik Müller, Jürgen Karl (2022)
Effect of Natural Ilmenite on the Solid Biomass Conversion of Inhomogeneous Fuels in Small-Scale Bubbling Fluidized Beds
Energies
Tanja Schneider, Julian Moffitt, Nicklas Volz, Dominik Müller, Jürgen Karl (2022)
Long-term effects of ilmenite on a micro-scale bubbling fluidized bed combined heat and power pilot plant for oxygen carrier aided combustion of wood
Applied Energy
Simon Markthaler, Thomas Plankenbühler, Jonas Miederer, Sebastian Kolb, Katharina Herkendell, Jürgen Karl (2022)
Combined Two-Model CFD Simulation of Trickle Bed Reactors with Head-Sump Extension: Case Study on Hydrodynamics and Biological Methanation
Industrial & Engineering Chemistry Research
Maximilian Weitzer, Dominik Müller, Daniel Steger, Antonios Charalampidis, Sotirios Karellas, Jürgen Karl (2022)
Organic flash cycles in Rankine-based Carnot batteries with large storage temperature spreads
Energy Conversion and Management
Yang Lei, Sega Marcello, Leimbach Steffen, Kolb Sebastian, Karl Juergen, Harting Jens (2022)
Capillary Interactions, Aggregate Formation, and the Rheology of Particle-Laden Flows: A Lattice Boltzmann Study
Industrial & Engineering Chemistry Research
Yixing Li, Yin Pang, Hengyong Tu, Federica Torrigino, Serge M.A. Biollaz, Zhuo Li, Yanqin Huang, Xiuli Yin, Fabian Grimm, Jürgen Karl (2021)
Impact of syngas from biomass gasification on solid oxide fuel cells: A review study for the energy transition
Energy Conversion and Management
Kolb S, Planenbühler T, Hofmann K, Bergerson J, Karl J (2021)
Life cycle greenhouse gas emissions of renewable gas technologies: A comparative review
Renewable and Sustainable Energy Reviews
Schneider T, Krumrein J, Müller D, Karl J (2021)
Investigation of the Oxygen Supply and Distribution in a Bubbling Fluidized Bed by Using Natural Ilmenite for Oxygen Carrier Aided
Energy & Fuels
Hauser A, Weitzer M, Gunsch S, Neubert M, Karl J (2021)
Dynamic hydrogen-intensified methanation of synthetic by-product gases from steelworks
Fuel Processing Technology
Schneider T, Ruf F, Müller D, Karl J (2021)
Performance of a fluidized bed-fired Stirling engine as micro-scale combined heat and power system on wood pellets
Applied Thermal Engineering
Thema M, Weidlich T, Kaul A, Böllmann A, Huber H, Bellack A, Karl J, Sterner M (2021)
Optimized biological CO2-methanation with a pure culture of thermophilic methanogenic archaea in a trickle-bed reactor.
Bioresource Technology
Eppinger B., Steger D., Regensburger C., Karl J., Schlücker E., Will S. (2021)
Carnot battery: Simulation and design of a reversible heat pump-organic Rankine cycle pilot plant
Applied Energy
Sebastian Kolb, Thomas Plankenbühler, Jonas Frank, Johannes Dettelbacher, Ralf Ludwig, Jürgen Karl, Marius Dillig (2021)
Scenarios for the integration of renewable gases into the German natural gas market – A simulation-based optimisation approach
Renewable & Sustainable Energy Reviews
Kalu A, Vrzel J, Kolb S, Karl J, Marzahn P, Pfaffenberger F, Ludwig R (2021)
Considering the Environmental Impacts of BioenergyTechnologies to Support German Energy Transition
Energies
Lange C, Müller D, Karl J (2021)
High Temperature CaO/CaCO3-Storage for Flexible Steam Power Plants
Karl J (2021)
Experiences of fermentation of real syngas to methane
Markthaler S, Grimm F, Karl J (2021)
Direct catalytic methanation of Biogas (DMB): From laboratory experiments to demonstration scale
Markthaler S, Grimm F, Karl J (2021)
Experimentelle Untersuchung zur Katalysatordeaktivierung und zur Leistungsfähigkeit eines zweistufigen Methanisierungssystems für die Dirketmethanisierung von Biogas
Stegner D, Karl J, Schlücker E (2021)
Launch and fird experimental results of a reversible heat pump-orc pilot plant as carnot battery
Wondra C, Karl J (2021)
Determination of flammability limits and laminar flame velocity of biogenic synthtesis gases
Torrigino F, Grimm F, Karl J (2021)
Utilization of wood gas in SOFC stacks
Weitzer M, Müller D, Karl J (2021)
Reduktion der Emissionen und Steigerung der Effizienz eines KWK Pelletkessels durch Primärmaßnahmen
Li Y, Grimm F, Neubert M, Treiber P, Karl J (2021)
The impact of tar contaminants on SOFC performance under high fuel utilization condition
Vincenzo Iannino, Valentina Colla, Claudio Mocci, Ismael Matino, Stefano Dettori, Sebastian Kolb, Thomas Plankenbühler, Jürgen Karl (2021)
Multi-agent systems to improve efficiency in steelworks
Materiaux et Techniques
Weitzer M, Müller D, Karl J (2021)
Advanced Organic Rankine Cycles for thermally integrated Carnot Batteries
Miederer J, Markthaler S, Kolb S, Karl J (2021)
Enhancement of catalytic direct methanation for application in wastewater treatment plants
Kolb S, Plankenbühler T, Neubert M, Karl J (2020)
Erneuerbare Gase für das Energiesystem der Zukunft
gwf: Gas+Energie
T. Schneider, D. Müller, J. Karl (2020)
A review of thermochemical biomass conversion combined with Stirling engines for the small-scale cogeneration of heat and power
Renewable & Sustainable Energy Reviews
Sebastian Kolb, Marius Dillig, Thomas Plankenbühler, Jürgen Karl (2020)
The impact of renewables on electricity prices in Germany - An update for the years 2014–2018
Renewable & Sustainable Energy Reviews
Markthaler S, Plankenbühler T, Weidlich T, Neubert M, Karl J (2020)
Numerical simulation of trickle bed reactors for biological methanation
Chemical Engineering Science
Eppinger B., Zigan L., Karl J., Will S. (2020)
Pumped thermal energy storage with heat pump-ORC-systems: Comparison of latent and sensible thermal storages for various fluids
Applied Energy
Steger D, Regensburger C, Eppinger B, Will S, Karl J, Schlücker E (2020)
Design aspects of a reversible heat pump - Organic rankine cycle pilot plant for energy storage
Energy
Kolb S, Dillig M, Plankenbühler T, Karl J (2020)
The impact of renewables on electricity prices in Germany - An update for the years 2014–2018
Renewable and Sustainable Energy Reviews
Daniel Scharrer, Bernd Eppinger, Pascal Schmitt, Johan Zenk, Peter Bazan, Jürgen Karl, Stefan Will, Marco Pruckner, Reinhard German (2020)
Life Cycle Assessment of a Reversible Heat Pump–Organic Rankine Cycle–Heat Storage System with Geothermal Heat Supply
Energies
Plankenbühler T, Kolb S, Grümer F, Müller D, Karl J (2020)
Image-Based Model for Assessment of Wood Chip Quality and Mixture Ratios
Processes
Dominik Müller, Thomas Plankenbühler, Jürgen Karl (2020)
A Methodology for Measuring the Heat Release Efficiency in Bubbling Fluidised Bed Combustors
Energies
Grimm F, Neubert M, Karl J, Menzler N, Guillon O (2020)
Selection of cathode materials for forsterite-supported solid oxide fuel cells – Part II: Electro-catalytic activity
Journal of Power Sources
Markthaler S, Neuber M, Karl J (2020)
Katalytische Methanisierung von Biogas zur Anlagenflexibilisierung - das Projekt Power-to-Biogas
Weitzer M, Karl J (2020)
Development of a pellet boiler for micro-CHP with an organic Rankine cycle
Yin Pang, Thomas Hammer, Dominik Müller, Jürgen Karl (2019)
Investigation on the influence of non-thermal plasma on reaction degree of wood gasification in a drop tube reactor
Fuel
Thema Martin, Weidlich Tobias, Hoerl Manuel, Bellack Annett, Moers Friedemann, Hackl Florian, Kohlmayer Matthias, Gleich Jasmin, Stabenau Carsten, Trabold Thomas, Neubert Michael, Ortloff Felix, Brotsack Raimund, Schmack Doris, Huber Harald, Hafenbradl Doris, Karl Juergen, Sterner Michael (2019)
Biological CO2-Methanation: An Approach to Standardization
Energies
Gatternig B, Karl J (2019)
Application of chemical equilibrium calculations for the prediction of ash-induced agglomeration
Biomass Conversion and Biorefinery
Pang Y, Hammer T, Müller D, Karl J (2019)
Plasma-gestützte Biomassevergasung mit Fokus auf Konversionsgrad und Reaktionskinetik
Hauser A, Neubert M, Karl J (2019)
Methanisierung von kohlenstoffreichen Kuppelgasen der Stahlindustrie – das Projekt i³upgrade
Hauser A, Weitzer M, Gunsch S, Neubert M, Karl J (2019)
Dynamic methanation of by-product gases from the steel industry in the scope of the project i³upgrade
Schneider T, Müller D, Karl J (2019)
Long-term operation experience of a fluidized bed-fired Stirling engine in micro-scale CHP
Plankenbühler T., Müller D., Karl J. (2019)
Influence of fine fuel particles on ash deposition in industrial-scale biomass combustion: Experiments and computational fluid dynamics modeling
Energy & Fuels
Trabold T, Weidlich T, Karl J (2019)
Tars and Inhibition of Biological Methanation Using Synthesis Gas of an Allothermal Wood Gasifier
Karl J (2019)
Indirect heating of bubbling fluidized beds by means of liquid metal heat pipes
S. Kolb, T. Plankenbühler, F. Pfaffenberger, J. Vrzel, A. Kalu, C. Holtz-Bacha, R. Ludwig, J. Karl, M. Dillig (2019)
Scenario-based analysis for the integration of renewable gases into the german gas market
Kolb S, Plankenbühler T, Dillig M, Karl j (2019)
Scenarios for the Integration of Renewable Gases into the German Gas Market: A simulation based Optimisation Approach
Schneider T, Müller D, Karl J (2019)
Kleinskalige KWK mit einem wirbelschichtgefeuerten Stirlingmotor zur Verstromung von biogenen Reststoffen
Karl J (2019)
Some thoughts on the future of Bioenergy: Do (Why) we need Bioenergy
Li Y, Karl J (2019)
SOFC single cells fed with wood gas: The influence of tar contaminants on cell performance
Pang Y, Hammer T, Müller D, Karl J (2019)
Investigation of Nonthermal Plasma Assisted Charcoal Gasification for Production of Hydrogen-Rich Syngas
Processes
Kolb S, Plankenbühler T, Pfaffenberger F, Vrzel J, Kalu A, Holtz-Bacha C, Ludwig R, Karl J, Dillig M (2019)
Scenario-based analysis for the integration of renewable gases into the german gas market
Pang Y., Bosch H., Hammer T., Müller D., Karl J. (2019)
Plasma-Aided Reforming of Toluene and Isopropanol with Analysis of Decomposition Mechanism
Waste and Biomass Valorization
Trabold T, Weidlich T, Karl J (2019)
Direct Biological Methanation of the Synthesis Gas of an Allothermal Wood Gasifier
Gatternig B., Karl J. (2019)
A discrete element cohesive particle collision model for the prediction of ash-induced agglomeration
International Journal of Ambient Energy
Weidlich T, Trabold T, Neubert M, Treiber P, Karl J (2019)
Trickle-Bed Reactor For Biological Methanation
Hauser A, Weitzer M, Neubert M, Karl J (2019)
Die wasserstoffintensivierte Methansynthese als Möglichkeit der stofflichen Verwertung von Kuppelgasen der Stahlindustrie – das Projekt i³upgrade
Steger D, Regensburger C, Eppinger B, Will S, Karl J, Schlücker E (2019)
COMBINING AN ORGANIC RANKINE CYCLE AND A HEAT PUMPCYCLE IN A TEST PLANT FOR REVERSIBLE STORAGE OFENERGY
Weidlich T, Trabold T, Neubert M, Treiber P, Karl J (2019)
Trickle-Bed Reactor for Biological Methanation
Weidlich T, Trabold T, Thema M, Sterner M, Karl J (2019)
Trickle-Bed Reactor For Biological Methanation
Neubert M, Hauser A, Treiber P, Karl J (2019)
Vorschlag einer katalytischen Methanisierung für kleinskalige dezentrale SNG Erzeugung
Schneider T, Müller D, Karl J (2019)
BioWasteStirling - Langzeitbetriebserfahrungen mit einem wirbelschichtgefeuerten Stirlingmotor für die kleinskaligen KWK
Pang Y, Müller D, Karl J (2019)
A Review Study on Chinese Domestic Gasification Technologies
Pang Y, Hammer T, Müller D, Karl J (2018)
Gasification of Biomass and its derived-Products using non-equilibrium Plasma at laboratory Scale
Gatternig B, Karl J (2018)
Application of chemical equilibrium calculations for the prediction of ash-induced agglomeration
Biomass Conversion and Biorefinery
Bahr L, Fendt P, Zigan L, Braeuer A, Hammer T, Pang Y, Karl J, Will S (2018)
Spectroscopic Temperature Measurements in a Plasma-Assisted Gasification Process
Leimert J, Neubert M, Treiber P, Dillig M, Karl J (2018)
Combining the Heatpipe Reformer technology with hydrogen-intensified methanation for production of synthetic natural gas
Applied Energy
Pang Y, Bahr L, Fendt P, Zigan L, Will S, Hammer T, Baldauf M, Fleck R, Müller D, Karl J (2018)
Plasma-Assisted Biomass Gasification in a Drop Tube Reactor at Atmospheric Pressure
Scharrer Daniel, Schmitt Bernd, Bazan Peter, Zigan Lars, Will Stefan, Karl Jürgen, German Reinhard (2018)
Properties of Reversible Heat Pump ORC Energy Storage Systems for Base Load Generation
Scharrer D, Eppinger B, Bazan P, Zigan L, Karl J, German R, Will S (2018)
Properties of Reversible Heatpump-ORC Energystorage Systems for Baseload Generation
Eppinger B, Bauer P, Karl J, Zigan L, Will S (2018)
Simulation eines kombinierten HP-ORC-Systems zur Energiespeicherung unter Aufwertung von Niedertemperaturwärme
Pang Y, Hammer T, Bahr L, Fendt P, Zigan L, Will S, Baldauf M, Fleck R, Müller D, Karl J (2018)
Investigation of biomass gasification with non-thermal plasma
Karl J (2018)
(K)eine Wende ohne Bioenergie? – Die Rolle der Biomasse in unserer künftigen Energiewirtschaft
Weidlich T, Neubert M, Dillig M, Karl J (2018)
Biological Methanation in Trickle-Bed Reactor
Pang Y, Hammer T, Bahr L, Fendt P, Will S, Müller D, Karl J (2018)
Kinetikuntersuchung einer NT-Plasma-gestützten Holzvergasung
Müller D, Schneider T, Plankenbühler T, Karl J (2018)
Kleinskalige Wirbelschichtfeuerungen zur (Hochtemperatur-) Wärmebereitstellung
Schneider T, Müller D, Karl J (2018)
Biomass conversion with a fluidized bed-fired Stirling engine in a micro-scale CHP plant
Staub S, Bazan P, Braimakis K, Müller D, Regensburger C, Scharrer D, Schmitt P, Steger D, German R, Karellas S, Pruckner M, Schlücker E, Will S, Karl J (2018)
Reversible heat pump-organic rankine cycle systems for the storage of renewable electricity
Energies
Dillig M, Plankenbühler T, Karl J (2018)
Thermal effects of planar high temperature heat pipes in solid oxide cell stacks operated with internal methane reforming
Journal of Power Sources
Weidlich T, Dillig M, Thema M, Sterner M, Karl J (2018)
Biological Methanation in a trickle-bed reactor
Schneider T, Müller D, Karl J (2018)
Verstromung von biogenen Reststoffen in einem wirbelschichtgefeuerten Stirlingmotor
Herrmann T, Birth S, Karl J, Dillig M (2018)
Monitoring a commercial µ-CHP SOFC-Stack by electrochemical impedance spectroscopy
Plankenbühler T, Müller D, Karl J (2018)
Prediction of Slagging in Fluidized bed boilers. 1st Discussion Forum on fluidized bed technology
Pang Y, Bahr L, Fendt P, Zigan L, Will S, Hammer T, Baldauf M, Fleck R, Müller D, Karl J (2018)
Plasma-Assisted Biomass Gasification with Focus on Carbon Conversion and Reaction Kinetics Compared to Thermal Gasification
Energies
Pang Y, Hammer T, Bahr L, Fendt P, Will S, Müller D, Karl J (2018)
Plasma-assisted biomass gasification in an atmospheric drop tube reactor
Saidi A, Trinkl C, Conti F, Goldbrunner M, Karl J (2018)
Partially Upgraded Biogas: Potential for Decentralized Utilization in Agricultural Machinery
Chemical Engineering & Technology
Lange C, Müller D, Karl J (2018)
Peak-Load High-Temperature Carbonate Storage
Leimert J, Dillig M, Karl J (2018)
Hydrogen production from solid feedstock by using a nickel membrane reformer
Journal of Membrane Science
Kolb S, Dillig M, Karl J (2018)
Integration of Renewable Gases into the Gas Market: A Nonlinear Optimization Approach
Karl J (2018)
Zentral oder dezentral – Technologien für die Energiewende
Neubert M, Hauser A, Dillig M, Karl J (2018)
Heatpipe-gekühltes Reaktorkonzept für die katalytische Methanisierung in power-to-gas Anwendungen
Trabold T, Dillig M, Neubert M, Karl J (2018)
Direct Biological Methanation of the Synthesis Gas of an Allothermal Wood Gasifier
Bahr L., Fendt P., Pang Y., Karl J., Hammer T., Braeuer A., Will S. (2018)
Temperature determination of superheated water vapor by rotational-vibrational Raman spectroscopy
Optics Letters
Herrmann T, Karl J, Schipke M (2018)
Technische Lösung zur Lebenszeitverlängerung von Brennstoffzellen und Einsatz von Vergasungsgas in Hochtemperatur-Brennstoffzellen
Neubert M., Hauser A., Pourhossein B., Dillig M., Karl J. (2018)
Experimental evaluation of a heat pipe cooled structured reactor as part of a two-stage catalytic methanation process in power-to-gas applications
Applied Energy
Karl J., Pröll T. (2018)
Steam gasification of biomass in dual fluidized bed gasifiers: A review
Renewable & Sustainable Energy Reviews
Lange C, Müller D, Karl J (2018)
Spitzenlastfähige Hochtemperaturspeicher
Kolb S, Plankenbühler T, Karl J, Dillig M (2018)
SustainableGas - Model for the Integration of Renewable Gases (MIREG)
Karl J, Neubert M (2017)
Production of Substitute Natural Gas: Thermochemical Methods
Herrmann T, Dillig M, Hauth M, Karl J (2017)
Conversion of tars on solid oxide fuel cell anodes and its impact on voltages and current densities
Energy Science and Engineering
Y. Pang, T. Hammer, J. Karl, S. Will (2017)
Experimentelle Untersuchung einer plasma-gestützten Biomassevergasung in Labormaßstab
Leimert J, Karl J, Dillig M (2017)
Dry Reforming of Methane Using a Nickel Membrane Reactor
Processes
Herrmann T, Dillig M, Karl J (2017)
Modelling Tar Conversion on SOFC Anodes
Karl J (2017)
Zentral oder dezentral – Technologien für die Energiewende
Neubert M, Treiber P, Dillig M, Karl J (2017)
Methanisierung im katalytischen Festbett für die SNG-Erzeugung in kleinen bis mittleren Anlagengrößen
Plankenbühler T, Müller D, Karl J (2017)
Slagging prevention and plant optimization by means of numerical simulation
Karl J (2017)
Aus der Forschung heraus erfolgreich gründen
Karl J (2017)
Balancing renewable energies - the European Challenge
Neubert M, Dillig M, Karl J (2017)
SNG production through fixed-bed methanation of biomass derived syngas with simplified warm gas cleaning
Pang Y, Muller D, Karl J, Hammer T, Bahr L (2017)
Biomass Gasification using non-thermal Plasma in a drop tube reactor
VDI-Berichte
Neubert M., Reil S., Wolff M., Pöcher D., Stork H., Ultsch C., Meiler M., Messer J., Kinzler L., Dillig M., Beer S., Karl J. (2017)
Experimental comparison of solid phase adsorption (SPA), activated carbon test tubes and tar protocol (DIN CEN/TS 15439) for tar analysis of biomass derived syngas
Biomass & Bioenergy
Pang Y, Müller D, Karl J, Hammer T, Bahr L (2017)
Biomassvergasung mittels nichtthermischen Plasmen im Fallrohrreaktor
Treiber P, Schneider T, Neubert M, Karl J (2017)
Allothermal gasification of biomass and lignite with integrated syngas cleaning for synthesis processes
Leimert JM, Treiber P, Neubert M, Sieber A, Karl J (2017)
Performance of a 100 kW Heatpipe Reformer operating on Lignite
Energy & Fuels
Karl J (2017)
Diskussion, Zusammenfassung und Ausblick
Schmitt B, Bauer P, Karl J, Zigan L, Will S (2017)
Simulation eines kombinierten HP-ORC-Systems zur Energiespeicherung unter Aufwertung von Niedertemperaturwärme
Neubert M, Treiber P, Krier C, Hackel M, Hellriegel T, Dillig M, Karl J (2017)
Influence of hydrocarbons and thiophene on catalytic fixed bed methanation
Fuel
Leimert JM, Karl J (2017)
Herstellung von Wasserstoff durch Nutzung der Heatpipe Reformer Technologie mit integrierter Wasserstoffabtrennung
Großmann K, Dellermann T, Dillig M, Karl J (2017)
Coking behavior of nickel and a rhodium based catalyst used in steam reforming for power-to-gas applications
International Journal of Hydrogen Energy
Leimert JM, Karl J (2017)
Performance and efficiency of the Heatpipe Reformer gasification system
Neubert M, Widzgowski J, Roensch S, Treiber P, Dillig M, Karl J (2016)
Simulation-Based Evaluation of a Two-Stage Small-Scale Methanation Unit for Decentralized Applications
Energy & Fuels
Staub S, Bauer J, Müller D, Franke J, Karl J (2016)
CO2-Neutral Generation of Heat and Power in Smart Homes by Organic Rankine Cycle Powered Combined Heat and Power Micro Plants
Advanced Engineering Forum
Müller D, Plankenbühler T, Karl J (2016)
Small-scale CHP Stirling Engines based on fluidized-bed combustion of biomass
Großmann K, Karl J (2016)
PtG without electrolysis: Hydrogen production from renewable sources in the natural gas grid by partial reforming
Treiber P, Neubert M, Leimert J, Karl J (2016)
Allotherme Vergasung von Braunkohle und Gasreinigung mit integrierter Abtrennung von CO2 zur Optimierung des C/H/O-Verhältnisses im Produktgas
Dillig M, Jung M, Karl J (2016)
The impact of renewables on electricity prices in Germany - An estimation based on historic spot prices in the years 2011-2013
Renewable & Sustainable Energy Reviews
Höftberger D, Karl J (2016)
The Indirectly Heated Carbonate Looping Process for CO2 Capture—A Concept With Heat Pipe Heat Exchanger
Journal of Energy Resources Technology-Transactions of the Asme
Reschmeier R, Karl J (2016)
Experimental study of wood char gasification kinetics in fluidized beds
Biomass & Bioenergy
Leimert J, Treiber P, Karl J (2016)
The Heatpipe Reformer with optimized combustor design for enhanced cold gas efficiency
Fuel Processing Technology
Leimert J, Karl J (2016)
Einsatz von Nickelmembranen zur in-situ Wasserstoffabtrennung im Heatpipe Reformer
Plankenbühler Th, Müller D, Karl J (2016)
Numerical simulation and experimental investigation of slagging in biomass combustion
Müller D, Karl J (2016)
Mikro-KWK mit einem biomassebetriebenen Stirlingmotor auf Basis einer stationären Wirbelschichtfeuerung
Leimert J, Karl J (2016)
Generation of Hydrogen from Solid Feedstock Using the Heatpipe Reformer Technology with in-Situ Hydrogen Separation By Nickel Membranes
Leimert JonasM, Dillig Marius, Karl Jürgen (2016)
Hydrogen inactivation of liquid metal heat pipes
International Journal of Heat and Mass Transfer
Leimert J., Karl J. (2016)
Nickel membranes for in-situ hydrogen separation in high-temperature fluidized bed gasification processes
International Journal of Hydrogen Energy
Müller D, Plankenbühler T, Karl J (2016)
Numerical simulations of staged fluidized bed boilers based on heat release measurements
Großmann K, Treiber P, Karl J (2016)
Steam methane reforming at low S/C ratios for power-to-gas applications
International Journal of Hydrogen Energy
Leimert J., Bartolf A., Karl J. (2016)
Hydrogen concentration measurement in high temperature applications using hydrogen permeation
International Journal of Hydrogen Energy
Treiber P, Neubert M, Karl J (2016)
Allothermal Gasification of Lignite and Biomass with Integrated Syngas Cleaning and CO2 Removal
Dillig M., Karl J (2016)
Reversible SOFC-Stacks durch thermisches Stackmanagement mit planaren Hochtemperatur-Heatpipes
Gatternig B, Karl J (2015)
Prediction of ash-induced agglomeration in biomass-fired fluidized beds by an advanced regression-based approach
Fuel
Dillig Marius, Biedermann Thomas, Karl Jürgen (2015)
Thermal contact resistance in solid oxide fuel cell stacks
Journal of Power Sources
Dillig M, Meyer T, Karl J (2015)
Integration of Planar Heat Pipes to Solid Oxide Cell Short Stacks
Fuel Cells
Gatternig B, Karl J (2015)
Investigations on the mechanisms of ash-induced agglomeration in fluidized-bed combustion of biomass
Energy & Fuels
Hoeftberger D, Karl J (2015)
The Indirectly Heated Carbonate Looping Process for CO2 Capture - A Concept with Heat Pipe Heat Exchanger
Dillig M, Karl J (2015)
Deutschland ohne erneuerbare Energien? Entwicklung der Stromkosten und Versorgungssicherheit ohne den Ausbau erneuerbarer Energien
BWK Das Energie Fachmagazin
Plankenbühler T, Karl J (2015)
Numerische Simulation und experimentelle Untersuchung der Verschlackungsneigung biogener Brennstoffe
Hoeftberger D, Karl J (2015)
Der indirekt beheizte Carbonate Looping Process zur CO2-Abscheidung aus Rauchgasen von Kohlekraftwerken
Karl J (2015)
Motives for biomass based bio-SNG production and perspectives of the Heatpipe Reformer technology
Müller D, Karl J (2015)
Charakterisierung von Ilmenit als Additiv für herkömmliche Bettmaterialien bei der stationären Wirbelschichtverbrennung
Hoeftberger D, Karl J (2015)
The Indirectly Heated Carbonate Looping Process for CO2 Capture
Leimert J, Karl J (2015)
Herstellung von Wasserstoff auf Basis der Heatpipe Reformer Technologie mit verbessertem Kaltwirkungsgrad
Müller D, Karl J (2015)
Bestimmung der Wärmeentbindung in biomassegefeuerten Wirbelschichten
Treiber P, Leimert J, Neubert M, Karl J (2015)
Integrated Syngas Cleaning and CO2 Removal for Medium-scale Coal-to-SNG Plants
Koytsoumpa E, Atsonios K, Panopoulos K, Karellas S, Kakaras E, Karl J (2015)
Modelling and assessment of acid gas removal processes in coal-derived SNG production
Applied Thermal Engineering
Dillig M, Karl J (2014)
"Deutschland ohne Erneuerbare Energien?"
Gatternig Bernhard, Karl Jürgen (2014)
The Influence of Particle Size, Fluidization Velocity, and Fuel Type on Ash-Induced Agglomeration in Biomass Combustion
Frontiers in Energy Research
Reschmeier R, Roveda D, Müller D, Karl J (2014)
Pyrolysis kinetics of wood pellets in fluidized beds
Journal of Analytical and Applied Pyrolysis
Dillig M, Leimert J, Karl J (2014)
Planar high temperature heat pipes for SOFC/SOEC stack applications
Fuel Cells
Plankenbühler T, Karl J (2014)
Influence on fuel fine particles on slagging of commercial size biomass boilers
Leimert J, Karl J (2014)
Herstellung von Wasserstoff auf Basis der Heatpipe Reformer Technologie
Müller D, Karl J (2014)
Burnout optimization of staged small-scale fluidized bed combustion systems
Karl J (2014)
Biomass heat pipe reformer—design and performance of an indirectly heated steam gasifier
Biomass Conversion and Biorefinery
Dillig M, Karl J (2014)
Operation of SOFC short stacks with integrated planar high temperature heat pipes
Hoeftberger D (2013)
Self-Fluidization in an Indirectly Heated Calciner
Chemical Engineering & Technology
Baumhakl C, Karl J, Kienberger T, Schweiger A, Buchholz D, Bajohr S, Koytsoumpa E, Karellas S (2013)
Substitute natural gas from Coal with internal sequestration of CO2
Reil S, Baumhakl C, Karl J, Messer J, Stork H, Beer S (2013)
Vergleich verschiedener Methoden zur Teeranalytik auf Basis von SPA und nasschemischen Verfahren bei der thermochemischen Biomassevergasung
Dillig M, Karl J (2013)
Substitute Natural Gas from Biomass - Decentralised Gasification and Methanation
Reschmeier R, Karl J (2013)
Kinetik der Pyrolyse von Holzwürfeln in Wirbelschichten
Baumhakl C, Karl J (2013)
Optimized Bio-SNG Production from Thermal Gasification with Hot-gas-cleaning Technologies
Karl J (2013)
Liberalisierter Energiemarkt - Neue Technologien und dezentrale Energiesysteme bilden die Grundlage für die Energiewende
ReSource
Plankenbühler T, Karl J (2013)
Erweiterung des Brennstoffbandes moderner Biomassefeuerungen
Baumhakl C, Karl J (2013)
Efficient Bio-SNG Production from Thermal Gsification with Hot-gas-cleaning Technologies
Gatternig B, Karl J (2013)
Development of novel modelling approaches for agglomeration prediction
Kienberger T, Zuber C, Novosel K, Baumhakl C (2013)
Desulfurization and in situ tar reduction within catalytic methanation of biogenous synthesis gas
Fuel
Patuzzi F, Roveda D, Mimmo T, Karl J, Baratieri M (2013)
A comparison between on-line and off-line tar analysis methods applied to common reed pyrolysis
Fuel
Müller D, Karl J (2013)
Biomass CHP with Micro-Fluidized-bed combustion
Karellas S, Panopoulos K, Panousis G, Rigas A, Karl J (2012)
An evaluation of Substitute natural gas production from different coal gasification processes based on modeling
Energy
Karl J (2012)
Dezentrale Energiesysteme: Neue Technologien im liberalisierten Energiemarkt
Karl J (2012)
Kraft-Wärme-Kopplung mit Biomasse: 27./28. März 2012, Neumarkt
Dillig M (2012)
Thermal management of high temperature solid oxide electrolyser cell/fuel cell systems
Energy Procedia
Hauth M, Kienberger T, Karl J (2011)
Transient operation effects of SOFCs driven with tar loaded synthesis gas
Koytsoumpa E, Griendl L, Karellas S, Panopoulos K, Nikolopoulos A, Karl J, Kakaras E (2011)
Simulations of a fixed bed catalytic reactor for the production of methane from syngas
Karellas S, Panopoulos K, Karl J, Kakaras E (2011)
A modelling evaluation of synthetic natural gas production from coal/lignite steam gasification process
Hauth M, Lerch W, König K, Karl J (2011)
Impact of naphthalene on the performance of SOFCs during operation with synthetic wood gas
Journal of Power Sources
Kienberger T, Karl J (2010)
Substitute Natural Gas (SNG)--Stand der Technik, theoretische Grundlagen, Forschung am Institut für Wärmetechnik
Karl J (2010)
Kraft-Wärme-Kopplung mit Biomasse: 9./10. März 2010, Augsburg;[OTTI Fachforum]
Karl J (2010)
Technische Grundlagen der Kraft-Wärme-Kopplung
Hauth M, Karl J (2010)
Entwicklungsstand innovativer SOFC Systeme zur dezentralen Energiebereitstellung
Hofmann Ph, Panopoulos KD, Aravind PV, Siedlecki M, Schweiger A, Karl J, Ouweltjes JP, Kakaras E (2009)
Operation of solid oxide fuel cell on biomass product gas with tar levels >10 g Nm-3
International Journal of Hydrogen Energy
Karl J (2009)
Kraft-Wärme-Kopplung mit Biomasse: technische, wirtschaftliche und rechtliche Rahmenbedingungen, Stand der Technik, Projektfinanzierung und Kosten, innovative Konzepte und Systeme; 07./08. April 2009, Regenstauf
Karl J, Frank N, Karellas S, Saule M, Hohenwarter U (2009)
Conversion of syngas from biomass in solid oxide fuel cells
Journal of Fuel Cell Science and Technology
Schweiger A, Hochleitner T, Karl J, Kienberger T (2009)
Method for manufacturing a product gas and generating steam, and modular product gas-steam reactor for carrying out said method
Kienberger T, Muehlberger T, Lettner J, Karl Juergen (2009)
METHANATION WITH AN ALLOTHERMAL SMART LAB-SCALE GASIFICATION SYSTEM 17TH BIOMASS CONFERENCE--HAMBURG 2009
Hofmann P, Panopoulos K, Fryda L, Schweiger A, Ouweltjes J (2008)
Integrating biomass gasification with solid oxide fuel cells: Effect of real product gas tars, fluctuations and particulates on Ni-GDC anode
International Journal of Hydrogen Energy
Karl J (2008)
Distributed generation of substitute natural gas from biomass
Karellas S, Kakaras E, Papadopoulos T, Schäfer C, Karl J (2008)
Hydrogen production from allothermal biomass gasification by means of palladium membranes
Fuel Processing Technology
Karellas S, Karl J, Kakaras E (2008)
An innovative biomass gasification process and its coupling with microturbine and fuel cell systems
Energy
Fryda L, Panopoulos K, Karl J, Kakaras E (2008)
Exergetic analysis of solid oxide fuel cell and biomass gasification integration with heat pipes
Energy
Schuster A, Karl J, Karellas S (2007)
Simulation of an innovative stand-alone solar desalination system using an organic rankine cycle
International Journal of Thermodynamics
Karellas S, Karl J (2007)
Analysis of the product gas from biomass gasification by means of laser spectroscopy
Optics and Lasers in Engineering
Schuster A., Storch G., Karl J., Hauer A. (2007)
Innovative concepts for combined heat and power production with biogenous gases
ECOS 2007 - Proceedings of the 20th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Hofmann Ph, Schweiger A, Fryda L, Panopoulos KD, Hohenwarter U, Ouweltjes JP, Karl J, Kakaras E (2007)
Results from planar SOFCs operated on hot cleaned gas derived from two experimental gasification facilities
Panopoulos KD, Fryda LE, Karl J, Poulou S, Kakaras E (2006)
High temperature solid oxide fuel cell integrated with novel allothermal biomass gasification. Part I: Modelling and feasibility study
Journal of Power Sources
Frank N, Saule M, Karl J (2006)
Degradation of solid oxide fuel cells with wood
Karl J, Frank N, Karellas S, Saule M, Hohenwarter U (2006)
Conversion of syngas from biomass in solid oxide fuel cells
Karellas S, Karl J, Kakaras E (2006)
An innovative biomass gasification process and its coupling with microturbine and fuel cell systems
Karl J, Schuster A (2006)
Concepts for Combined Heat and Power with biogenous gases | Konzepte für die kraft-wärme-kopplung mit biogenen gasen
Gas und Wasserfach, Gas, Erdgas
Hein D, Karl J (2006)
5.2 Biomass conversion to heat and electricity
Karl J, Schuster a (2006)
Konzepte für die Kraft-Wärme-Kopplung mit biogenen Gasen
Gas und Wasserfach, Gas, Erdgas
Schuster A, Karellas S, Karl J (2006)
Innovative applications of organic rankine cycle
Saule M, Frank N, Hofmann P, Ouweltjes JP, Schweiger A, Karl J (2006)
Operation of Solid Oxide Fuel Cells with Syngas from Biomass
Karl Jurgen (2006)
Facility for the gasification of carbon-containing feed materials
Panopoulos KD, Fryda L, Karl J, Poulou S, Kakaras E (2006)
High temperature solid oxide fuel cell integrated with novel allothermal biomass gasification. Part II: Exergy analysis
Journal of Power Sources
Karl J, Karellas S, Frank N, Spliethoff H (2005)
Highly efficient conversion of syngas from biomass gasification in Solid Oxide Fuel Cells
Karl J (2004)
Power generation from biomass in Munich
Fuel Cells Bulletin
Karl J (2004)
Wirbelschichtvergasung-Stand der Technik
Karellas S, Raindl M, Karl J (2004)
Online optical analysis of the product gas from the gasification of biomass
VDI-Berichte
Karellas S, Karl J, Metz T, Kuhn S (2004)
Use of the Raman spectroscopy for the analysis of the product gas from the allothermal biomass gasification
VDI-Berichte
Karl J, Karellas S (2004)
Highly efficient SOFC systems with indirect gasification
Karl J, Karellas S, Kuhn S, Metz T (2004)
Erzeugung von Synthesegas mit dem Biomass Heatpipe Reformer--Betriebserfahrungen und Leistungsgrenzen
KARL J (2004)
Dezentrale Biomasse-und Reststoffvergasung: Erzeugung wasserstoffreicher Brenngase mit dem Heatpipe-Refomner
Euroheat and Power (English Edition)
Karl J, Karellas S, Kuhn S, Metz T (2004)
Generation of synthesis gas with the biomass heatpipe reformer. Operating experiences and output limits | Erzeugung von synthesegas mit dem biomass heatpipe reformer -Betriebserfahrungen und leistungsgrenzen
DGMK Tagungsbericht
Metz T, Kuhn S, Karellas S, Stocker R, Karl J, Hein D (2004)
Experimental results of the biomass heatpipe reformer
Kautz M, Hansen U, Karl J (2004)
The externally fired gas turbine | Die extern gefeuerte gasturbine
DGMK Tagungsbericht
Goldbrunner M, Karl J, Hein D (2003)
Local phenomena in case of condensation at stratified flow with non condensable gases
Ottmann M, Karl J, Hein D (2003)
Entwicklung von Sonden zur "Online-Korrosionsmessung"
VDI-Berichte
Stockar R, Karl J (2003)
Bestimmung verbrennungsrelevanter Größen in Flammen mit einem optimierten laseroptischen Messverfahren
VDI-Berichte
Goldbrunner M, Karl J, Hein D (2003)
Concentration and temperature measurements by means of Raman spectroscopy in case of condensation with non-condensable gas
Kerntechnik
Ottmann M, Karl J, Hein D (2003)
Entwicklung fon Sonden zur "Online-Korrosionsmessung"
Goldbrunner M, Karl J, Hein D (2003)
Konzentrations-und Temperaturmessungen bei der Kondensation mit einem nichtkondensierbaren Gas mit Hilfe der linearen Ramanspektroskopie
Kerntechnik
Karl J, Brost Q, Metz T, Groll M, Hein D (2002)
Decentralized generation of heat and power by means of the Biomass Heatpipe Reformer
Stocker R, Harlfinger J, Karl J, Hein D (2001)
Laseroptische Messungen an Erdgasflammen bei variabler Warmeabfuhr
VDI-Berichte
Stocker R, Karl J, Hein D (2001)
OH LIF in atmospheric pressure flames excited by a tunable OPO (Type II) laser system
Karl J (2000)
DEVICE FOR THE GASIFICATION OF CARBONACEOUS FEEDSTOCK
Goldbrunner M, Karl J, Hein D (2000)
Spontaneous condensation in boundary layers at stratified flow
Karl J, Ottmann M (2000)
Measuring water temperatures by means of linear Raman spectroscopy
Karl J (2000)
Spontaneous condensation in boundary layers
Heat and Mass Transfer
Stocker R, Karl J, Hein D (2000)
Fluorescence spectroscopic measurements in methane/air and hydrogen/oxygen atmospheric pressure flames in the excitation wavelength range of 303 nm to 240 nm
Goldbrunner M, Karl J, Hein D (2000)
Experimental investigation of heat transfer phenomena during direct contact condensation in the presence of non condensable gas by means of linear raman spectroscopy
Karl J, Hein D (1999)
Effect of Spontaneous Condensation on Condensation Heat Transfer in the Presence of Non Condensable Gases
Hein D, Karl J, Ruile H (1998)
Transport phenomena and heat transfer with direct contact condensation
Kerntechnik
Karl J, Weiss T (1997)
Measurement of condensation heat transfer coefficients at stratified flow using linear raman spectroscopy
Journal of Flow Visualization and Image Processing
Karl Jürgen (1997)
Untersuchung des Wärmeübergangs bei der Partialkondensation mittels linearer Ramanspektroskopie
Karl J, Hein D (1997)
Measuring water temperature profiles at stratified flow by means of linear Raman spectroscopy