@book{Swat, author = {Swat, Steffen}, title = {Einf{\"u}hrung in die Simulation von Kraftwerken mit EBSILON®Professional Version 15}, edition = {1. Auflage}, publisher = {Neopubli GmbH}, address = {Berlin}, isbn = {978-3-754142-04-2}, pages = {81}, abstract = {EBSILON®Professional ist ein leistungsf{\"a}higes Modellierungssystem, welches zur Simulation von thermodynamischen Kreisprozessen entwickelt wurde. Es eignet sich als Hilfsmittel bei der Anlagenplanung, -auslegung und -optimierung von thermischen Kraftwerken mit einem Wasserdampf-Prozess oder einem Gasturbinen-Prozess sowie Anlagen mit erneuerbaren Energien (Biomasse, Windenergie, Solarenergie und Geothermie). Die Einf{\"u}hrung beschreibt die Grundprinzipien und die Arbeitsschritte zur Erstellung eines Modells der Anlage. Weiterhin wird die Arbeit mit der internen Programmierungsumgebung EbsScript und der Umgang mit der Berechnung von Zeitreihen vorgestellt.}, language = {de} } @book{Swat, author = {Swat, Steffen}, title = {Introduction to the simulation of power plants for EBSILON®Professional Version 15}, edition = {1. Auflage}, publisher = {Neopubli GmbH}, address = {Berlin}, isbn = {978-3-754142-08-0}, pages = {78}, abstract = {EBSILON®Professional is a powerful modelling system developed for the simulation of thermodynamic cycles. It is suitable as a tool for plant planning, design and optimization of thermal power plants with a steam process or a gas turbine process as well as plants with renewable energies (biomass, wind energy, solar energy and geothermal energy). The introduction describes the basic principles and the working steps to create a model of the plant. Furthermore, the work with the internal programming environment EbsScript and the handling of the calculation of time series is presented.}, language = {en} } @misc{SharmaRoentzschShahi, author = {Sharma, Prerana and R{\"o}ntzsch, Lars and Shahi, Vinod K.}, title = {Advancements towards optimization of metal-organic framework-based polymer electrolyte membranes for aqueous redox flow batteries}, series = {Journal of materials chemistry : A, materials for energy and sustainability}, volume = {13}, journal = {Journal of materials chemistry : A, materials for energy and sustainability}, number = {17}, publisher = {Royal Society of Chemistry (RSC)}, address = {London}, issn = {2050-7488}, doi = {10.1039/D4TA08720H}, pages = {11952 -- 11988}, abstract = {Aqueous redox flow batteries (ARFBs) are considered a potential technology for large-scale energy storage owing to their eco-friendliness, high current density, and tuneable capacity. Polymer electrolyte membranes (PEMs) are vital components of ARFB, but they suffer from significant capacity/efficiency deterioration due to a lack of advancement in structural framing. To enhance the effectiveness of ARFBs, various membrane types have been optimized. However, the development of an efficient PEM remains a significant problem. Metal-organic frameworks (MOFs) made up of metal sites and organic linkers have gained significant scientific interest. As a result of their large surface area, adjustable pore diameters, and customized functionality, MOF-based PEMs are regarded as effective separators for ARFB. This review covers the state of the art MOF-based PEMs as ARFB separators. In recent years, significant efforts have been made to utilize the unique characteristics of MOFs as they not only improve the conductivity (attributed to their 3D channel structure) and gradient distribution in the polymer framework but also stabilize and mitigate active species cross-over by regulating the effective pore size. The aforementioned tactics can stimulate more research on energy storage technologies and provide future insight into the development and design of size-sieving separators for ARFB.}, language = {en} } @inproceedings{SchreiberKrautzMueller, author = {Schreiber, Matthias and Krautz, Hans Joachim and M{\"u}ller, R.}, title = {Entwicklung einer Software zur verfahrenstechnischen Auslegung von Bioverbundstandorten}, language = {de} } @inproceedings{SchreiberKrautz, author = {Schreiber, Matthias and Krautz, Hans Joachim}, title = {Einfluss der Modellierung des Impulsaustausches auf die Eigenschaften von Braunkohlewirbelschichten}, language = {de} } @inproceedings{SchreiberKrautz, author = {Schreiber, Matthias and Krautz, Hans Joachim}, title = {Numerical and Experimental Investigation of Tube-to-Bed Heat Transfer in a Bubbling Fluidized Bed of Lignite Particles}, series = {21st International Conference on Fluidized Bed Combustion, Neapel, 2012}, booktitle = {21st International Conference on Fluidized Bed Combustion, Neapel, 2012}, language = {en} } @inproceedings{SchreiberAsegehegnKrautz, author = {Schreiber, Matthias and Asegehegn, Teklay Weldeabzgi and Krautz, Hans Joachim}, title = {Numerical study of bubbling fluidized bed hydrodynamics}, language = {de} } @inproceedings{SchreiberAsegehegnKrautz, author = {Schreiber, Matthias and Asegehegn, Teklay Weldeabzgi and Krautz, Hans Joachim}, title = {Numerical study of bubbling fluidized beds: Influence of immersed tubes,extraction methods and averaging periods}, language = {en} } @inproceedings{SchreiberAsegehegnKrautz, author = {Schreiber, Matthias and Asegehegn, Teklay Weldeabzgi and Krautz, Hans Joachim}, title = {Untersuchung des Einflusses von dicht gepackten Tauchheizfl{\"a}chen auf die Eigenschaften von Wirbelschichten mittels numerischer Str{\"o}mungssimulation}, language = {de} } @misc{SchreiberAsegehegnKrautz, author = {Schreiber, Matthias and Asegehegn, Teklay Weldeabzgi and Krautz, Hans Joachim}, title = {Numerical and Experimental Investigation of Bubbling Gas-Solid Fluidized Beds with Dense Immersed Tube Bundles}, language = {en} } @phdthesis{Schreiber, author = {Schreiber, Matthias}, title = {Modellierung von Hydrodynamik und W{\"a}rme{\"u}bertragung in blasenbildenden Wirbelschichten zur Trocknung von Braunkohle}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-27263}, language = {de} } @inproceedings{SchraderPaulickKrautz, author = {Schrader, A. and Paulick, G. and Krautz, Hans Joachim}, title = {Entwicklung eines druckaufgeladenen Feuerungs-systems f{\"u}r Wirbelschichtkohle}, language = {de} } @misc{SchleifringRistauTaube, author = {Schleifring, Birgit and Ristau, Herbert and Taube, Stefan}, title = {Aufbau der kraftwerkstechnischen Großlabore an der BTU Cottbus und am Energieressourcen-Institut in J{\"a}nschwalde}, language = {de} } @misc{SchierackRistauLisk, author = {Schierack, Kristin and Ristau, Herbert and Lisk, Alexander}, title = {Laudatio: Universit{\"a}ts-Professor Hans Joachim Krautz zum 65. Geburtstag}, series = {VGB PowerTech}, volume = {98}, journal = {VGB PowerTech}, number = {8}, issn = {1435-3199}, pages = {47 -- 48}, language = {de} } @inproceedings{SchierackRombrechtKrautz, author = {Schierack, Frank and Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Stand der Forschung an der Versuchsanlage mit zirkulierender Druckwirbelschichtfeuerung der 2. Generation in Cottbus sowie M{\"o}glichkeiten der Einbindung eines Heißgasfilters an dieser Versuchsanlage}, language = {de} } @inproceedings{SchierackRombrechtKrautz, author = {Schierack, Frank and Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Stand der Forschung an der Versuchsanlage mit zirkuliernder Druckwirbelschichtfeuerung der 2.Generation in Cottbus sowie M{\"o}glichkeiten der Einbindung eines Heißgasfilters an dieser Versuchsanlage}, language = {de} } @inproceedings{SchierackPriesmeierKrautzetal., author = {Schierack, Frank and Priesmeier, U. and Krautz, Hans Joachim and Thielen, W.}, title = {Theoretische Voruntersuchungen zum Versuchsbetrieb an der Technikumsanlage mit zirkulierender Druckwirbelschichtfeuerung (ZDWSF 2.Generation) der BTU Cottbus}, isbn = {3-18-091535-9}, language = {de} } @inproceedings{SchierackKrautzRistau, author = {Schierack, Frank and Krautz, Hans Joachim and Ristau, Herbert}, title = {Development of a new Brown coal fired Combined-Cycle Power Plant using CPFBC, 2nd Generation}, language = {en} } @inproceedings{SchierackKrautzPriesmeieretal., author = {Schierack, Frank and Krautz, Hans Joachim and Priesmeier, U. and Nies, T.}, title = {Advancement of circulating pressurized fluidized bed combustion up to plants of the 2nd Generation}, isbn = {3-18-091535-9}, language = {en} } @inproceedings{SchierackKrautzGriebe, author = {Schierack, Frank and Krautz, Hans Joachim and Griebe, Steffen}, title = {Development of a new Brown coal fired Combined-Cycle Power Plant using CPFBC, 2nd Generation}, language = {en} } @phdthesis{Schierack, author = {Schierack, Frank}, title = {Untersuchungen zu einem Kraftwerksprozess mit Teilvergasung in einer Zirkulierenden Druckwirbelschicht}, publisher = {Cuvillier Verlag}, address = {G{\"o}ttingen}, isbn = {3-86537-318-6}, language = {de} } @incollection{SampangiRoentzsch, author = {Sampangi, Shiva Kumar and R{\"o}ntzsch, Lars}, title = {Electrolysis - Proton-exchange membrane electrolyzer | Proton exchange membrane water electrolysis: State-of-the-art technique and systems}, series = {Reference Module in Chemistry, Molecular Sciences and Chemical Engineering}, booktitle = {Reference Module in Chemistry, Molecular Sciences and Chemical Engineering}, editor = {Reedijk, Jan}, publisher = {Elsevier}, isbn = {978-0-12-409547-2}, doi = {10.1016/B978-0-323-96022-9.00237-1}, language = {en} } @misc{SampangiJarubulaElasmaretal., author = {Sampangi, Shiva Kumar and Jarubula, Charath Krishna and Elasmar, Mohamed and R{\"o}ntzsch, Lars}, title = {Advanced anion exchange membrane electrolyser with 360 cm² active cell area}, series = {EFCF 2025 : Fuel Cells, Electrolysers \& H2 Processing}, journal = {EFCF 2025 : Fuel Cells, Electrolysers \& H2 Processing}, publisher = {European Fuel Cell Forum AG}, address = {Luzern}, doi = {10.5281/zenodo.17244119}, pages = {1 -- 6}, abstract = {Anion Exchange Membrane Water Electrolysis (AEMWE) has emerged as a promising technology for generating green hydrogen, particularly using intermittent renewable energy sources. AEMWE offers a compelling opportunity for cost-effective and sustainable hydrogen production by combining the advantages of traditional alkaline water electrolysis, such as the use of abundant and low-cost catalysts, with the benefits of Proton Exchange Membrane (PEM) electrolysis, which includes membrane separation with pure or low-concentration alkaline water and operation at high current densities. However, the widespread commercialization of AEMWE remains in its early stages, with small-scale active cell areas (less than 300 cm²) and ongoing challenges related to performance and durability. Consequently, it is vital to develop high-performance, durable AEMWE cells with larger active areas to facilitate the broader adoption of this technology. This contribution presents our recent progress in AEMWE, focusing on the development of cells with an active area of up to 360 cm². In particular, we are advancing AEMWE technology to Technology Readiness Level (TRL) 5/6, incorporating precious metal-free catalysts and advanced membranes to enhance the flexibility and efficiency of hydrogen production. As part of this effort, we have designed and experimentally tested a 100 cm² AEMWE cell and conceptualized and designed a 4-kW short-stack with a total active cell area of 1800 cm², as shown in Figure. 1, for high-pressure operation at 30 bar. Our ongoing efforts includes the laboratory testing of this newly designed stack at high pressure operation and evaluating its electrochemical performance and durability up to 1,000 h continuous operation using precious metal-free electrocatalysts.}, language = {en} } @misc{SakkasZiemsPosseltetal., author = {Sakkas, Nikolaos Panagiotis and Ziems, Christian and Posselt, Joachim and Krautz, Hans Joachim}, title = {Entwicklung von Algorithmen zur Einsatzplanung und Steuerung von Power-to-Heat-Anlagensystemen zur effizienteren Nutzung regenerativer {\"U}berschussenergie}, series = {VGB PowerTech}, volume = {98}, journal = {VGB PowerTech}, number = {8}, issn = {1435-3199}, pages = {82 -- 87}, language = {de} } @misc{SakkasAbang, author = {Sakkas, Nikolaos Panagiotis and Abang, Roger Atini}, title = {Thermal load prediction of communal district heating systems by applying data-driven machine learning methods}, series = {Energy Reports}, volume = {8}, journal = {Energy Reports}, issn = {2352-4847}, doi = {10.1016/j.egyr.2021.12.082}, pages = {1883 -- 1895}, abstract = {Load forecasting is an essential part of the operational management of combined heat and electrical power units, since a reliable hour- and day-ahead estimation of their thermal and electrical load can significantly improve their technical and economic performance, as well as their reliability. Among different types of prediction techniques, data-driven machine learning methods appear to be more suitable for load estimation in operational systems, compared to the classical forward approach. Research so far has been concentrated mainly on the magnitude of buildings with single load types. It has only been extended to a limited degree on the level of a district heating network where several end users with different characteristics merge into one bigger scale heat consumer (city or group of communities). In this study, artificial neural networks are utilized, to develop a load prediction model for district heating networks. A segmented analytical multi-phase approach is employed, to gradually optimize the predictor by varying the characteristics of the input variables and the structure of the neural network. The comparison against the load prediction time series generated by a local communal energy supplier using a commercial software reveals that, although the latter is enhanced by manual human corrections, the optimized fully automatic predictors developed in the present study generate a more reliable load forecast.}, language = {en} } @misc{SakkasGillungThummaretal., author = {Sakkas, Nikolaos P. and Gillung, Frank and Thummar, Krunalkumar and Abang, Roger and R{\"o}ntzsch, Lars}, title = {Advanced pressurized alkaline water electrolysis at high temperatures up to 130 °C}, series = {International journal of hydrogen energy}, volume = {149}, journal = {International journal of hydrogen energy}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0360-3199}, doi = {10.1016/j.ijhydene.2025.150075}, pages = {1 -- 12}, abstract = {Operating alkaline water electrolysers above 100 °C improves electrolyte conductivity and reaction kinetics significantly. To examine alkaline water electrolysis in this area in more detail a high-temperature pressurized test rig is designed and constructed. Nickel (Ni) foam electrodes coated with Raney nickel (Raney Ni) or nickel manganese (NiMn) and expanded Ni mesh electrodes coated with nickel(II) oxide (NiO) are utilized and the effect of electrolyte flow rate, electrode structure, pressure and temperature variation on the cell performance at temperatures up to 130 °C and pressures up to 16 bar are investigated. At the maximum current density of 1.67 A/cm2, 110 °C and 16 bar the electrode combination of Raney Ni coated Ni foam as cathode and NiO coated expanded Ni mesh electrode as anode attain the best outcome with a cell voltage of 2.29 V. In a 70 h duration test three-dimensional (3D) Ni foam electrodes with Raney Ni cathode and NiMn anode catalyst show a moderate cell degradation of 9.26 μV/h.}, language = {en} } @inproceedings{RombrechtRistauKrautz, author = {Rombrecht, Hans-Bernd and Ristau, Herbert and Krautz, Hans Joachim}, title = {Ein braunkohlebasierter Kombikraftwerksprozess (ZDWSF) - Versuchsergebnisse und -erfahrungen}, language = {de} } @inproceedings{RombrechtMerzschKrautz, author = {Rombrecht, Hans-Bernd and Merzsch, Matthias and Krautz, Hans Joachim}, title = {Die Druckaufgeladene Dampfwirbelschicht-Trocknung (DDWT) und die Kohlendioxidabtrennung mittels Gasw{\"a}sche}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Stand der Untersuchungen an der Versuchsanlage mit zirkulierender Druckwirbelschichtfeuerung der 2. Generation der BTU Cottbus}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Ein braunkohlenbasierter Kombikraftwerksprozeß (ZDWSF) - Anlagenkonzept und Betriebsergebnisse}, abstract = {Vortrag auf 4. Statusseminar "Druckflamm", Dortmund}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Weiterentwicklung der ZDWSF-Versuchsanlage der Brandenburgischen Technischen Universit{\"a}t Cottbus}, abstract = {Vortrag auf XXXVI. Kraftwerkstechnisches Kolloquium "Entwicklungspotentiale f{\"u}r Kraftwerke mit fossilen Brennstoffen", Dresden}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Proces Oxyfuel - przysloscia spalania wegla?}, language = {ru} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Ein braunkohlebasierter Kombikraftwerksprozeß (ZDWSF) - Anlagenkonzept und Betriebsergebnisse}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Weiterentwicklung der ZDWSF-Versuchsanlage der BTU Cottbus}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {The BTU Cottbus PFCBC, 2nd Generation Lab-scale-Plant Experiences and Results}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Hans Joachim}, title = {Results and operation experiences of the lignite fired laboratory-scale plant with pressurized circulating fluidized bed combustion of the 2nd generation (PFBC)}, language = {en} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Gerd}, title = {Biomischpellets aus landwirtschaftlichen Reststoffen - die Alternative zu Holz}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Gerd}, title = {Bionmischpellets - Ergebnisse des Forschungsprojektes NEBrA}, language = {de} } @inproceedings{RombrechtKrautz, author = {Rombrecht, Hans-Bernd and Krautz, Gerd}, title = {Biomischpellets aus landwirtschaftlichen Reststoffen - die Alternative zu {\"O}l und Gas}, language = {de} } @inproceedings{RombrechtFindeisenKrautz, author = {Rombrecht, Hans-Bernd and Findeisen, Alexander and Krautz, Hans Joachim}, title = {Die Energiestrategie 2010 in Brandenburg}, language = {de} } @inproceedings{RombrechtFindeisenKrautz, author = {Rombrecht, Hans-Bernd and Findeisen, Alexander and Krautz, Hans Joachim}, title = {Die Entwicklung von Kombikraftwerksprozessen}, language = {de} } @inproceedings{RombrechtFindeisenKrautz, author = {Rombrecht, Hans-Bernd and Findeisen, Alexander and Krautz, Gerd}, title = {Qualit{\"a}t von Brennstoffen f{\"u}r Biomassekraftwerke}, language = {de} } @inproceedings{Rombrecht, author = {Rombrecht, Hans-Bernd}, title = {Pelet bioenergetyczny jako alternatywa dla ropy i gazu}, language = {ru} } @inproceedings{Rombrecht, author = {Rombrecht, Hans-Bernd}, title = {Biomasseverwertung in Brandenburg}, language = {de} } @inproceedings{Rombrecht, author = {Rombrecht, Hans-Bernd}, title = {Biomischpellets - Ergebnisse des Forschungsprojektes NEBrA}, language = {de} } @inproceedings{Rombrecht, author = {Rombrecht, Hans-Bernd}, title = {Das Projekt NEBrA - neue Perspektiven f{\"u}r die Landwirtschaft in der Spree-Neiße-Bober-Region}, language = {de} } @inproceedings{RogollWalterKrautz, author = {Rogoll, A. and Walter, E. and Krautz, Hans Joachim}, title = {Co-generation plant Cottbus with ABB P200- Pressurized Fluidized Bed Combustion}, language = {en} } @article{RochlitzKrautz, author = {Rochlitz, Lisbeth and Krautz, Hans Joachim}, title = {Entwicklung, Untersuchung und Modellierung eines Mikroreformers als Teil eines Systems zur netzfernen Stromversorgung mit PEM-Brennstoffzellen im Bereich einiger 100 Watt}, language = {de} } @phdthesis{Rochlitz, author = {Rochlitz, Lisbeth}, title = {Development, investigation and modelling of a micro reformer as part of a system for off-grid power suppy with PEM fuel cells}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-5900}, language = {de} } @inproceedings{RistauMrozKrautz, author = {Ristau, Herbert and Mroz, Marcin and Krautz, Hans Joachim}, title = {Research and Development of Progressive Power Plant Techniques at the Brandenburg University of Technology Cottbus}, language = {en} }