| Steam gasification of biomass in dual fluidized bed gasifiers: A review J Karl, T Pröll Renewable and Sustainable Energy Reviews 98, 64-78, 2018 | 239 | 2018 |
| High temperature solid oxide fuel cell integrated with novel allothermal biomass gasification: Part I: Modelling and feasibility study KD Panopoulos, LE Fryda, J Karl, S Poulou, E Kakaras Journal of Power Sources 159 (1), 570-585, 2006 | 202 | 2006 |
| Dezentrale Energiesysteme: Neue Technologien im liberalisierten Energiemarkt J Karl Oldenbourg Verlag, 2012 | 151* | 2012 |
| The impact of renewables on electricity prices in Germany–An estimation based on historic spot prices in the years 2011–2013 M Dillig, M Jung, J Karl Renewable and Sustainable Energy Reviews 57, 7-15, 2016 | 142 | 2016 |
| An innovative biomass gasification process and its coupling with microturbine and fuel cell systems S Karellas, J Karl, E Kakaras Energy 33 (2), 284-291, 2008 | 126 | 2008 |
| Integrating biomass gasification with solid oxide fuel cells: effect of real product gas tars, fluctuations and particulates on Ni-GDC anode P Hofmann, KD Panopoulos, LE Fryda, A Schweiger, JP Ouweltjes, J Karl International journal of hydrogen energy 33 (11), 2834-2844, 2008 | 115 | 2008 |
| Biological CO2-Methanation: An Approach to Standardization M Thema, T Weidlich, M Hörl, A Bellack, F Mörs, F Hackl, M Kohlmayer, ... Energies 12 (9), 1670, 2019 | 112 | 2019 |
| High temperature solid oxide fuel cell integrated with novel allothermal biomass gasification: Part II: Exergy analysis KD Panopoulos, L Fryda, J Karl, S Poulou, E Kakaras Journal of Power Sources 159 (1), 586-594, 2006 | 98 | 2006 |
| Operation of solid oxide fuel cell on biomass product gas with tar levels> 10 g Nm− 3 P Hofmann, KD Panopoulos, PV Aravind, M Siedlecki, A Schweiger, ... International journal of hydrogen energy 34 (22), 9203-9212, 2009 | 95 | 2009 |
| Exergetic analysis of solid oxide fuel cell and biomass gasification integration with heat pipes L Fryda, KD Panopoulos, J Karl, E Kakaras Energy 33 (2), 292-299, 2008 | 82 | 2008 |
| Modelling and assessment of acid gas removal processes in coal-derived SNG production EI Koytsoumpa, K Atsonios, KD Panopoulos, S Karellas, E Kakaras, J Karl Applied Thermal Engineering 74, 128-135, 2015 | 81 | 2015 |
| Investigations on the mechanisms of ash-induced agglomeration in fluidized-bed combustion of biomass B Gatternig, J Karl Energy & Fuels 29 (2), 931-941, 2015 | 79 | 2015 |
| Reversible heat pump–organic Rankine cycle systems for the storage of renewable electricity S Staub, P Bazan, K Braimakis, D Müller, C Regensburger, D Scharrer, ... Energies 11 (6), 1352, 2018 | 77 | 2018 |
| Pumped thermal energy storage with heat pump-ORC-systems: Comparison of latent and sensible thermal storages for various fluids B Eppinger, L Zigan, J Karl, S Will Applied Energy 280, 115940, 2020 | 71 | 2020 |
| Carnot battery: Simulation and design of a reversible heat pump-organic Rankine cycle pilot plant B Eppinger, D Steger, C Regensburger, J Karl, E Schlücker, S Will Applied Energy 288, 116650, 2021 | 64 | 2021 |
| The impact of renewables on electricity prices in Germany-An update for the years 2014–2018 S Kolb, M Dillig, T Plankenbühler, J Karl Renewable and Sustainable Energy Reviews 134, 110307, 2020 | 61 | 2020 |
| Analysis of the product gas from biomass gasification by means of laser spectroscopy S Karellas, J Karl Optics and Lasers in Engineering 45 (9), 935-946, 2007 | 59 | 2007 |
| Planar high temperature heat pipes for SOFC/SOEC stack applications M Dillig, J Leimert, J Karl Fuel Cells 14 (3), 479-488, 2014 | 57 | 2014 |
| A review of thermochemical biomass conversion combined with Stirling engines for the small-scale cogeneration of heat and power T Schneider, D Müller, J Karl Renewable and Sustainable Energy Reviews 134, 110288, 2020 | 56 | 2020 |
| Design aspects of a reversible heat pump-Organic rankine cycle pilot plant for energy storage D Steger, C Regensburger, B Eppinger, S Will, J Karl, E Schlücker Energy 208, 118216, 2020 | 56 | 2020 |
Sotirios KarellasAssociate Professor, School of Mechanical Engineering, National Technical University of AthensVerified email at mail.ntua.gr
