TY  - JOUR
A1  - Rieke, Christian
A1  - Stollenwerk, Dominik
A1  - Dahmen, Markus
A1  - Pieper, Martin
T1  - Modeling and optimization of a biogas plant for a demand-driven energy supply
JF  - Energy
N2  - Due to the Renewable Energy Act, in Germany it is planned to increase the amount of renewable energy carriers up to 60%. One of the main problems is the fluctuating supply of wind and solar energy. Here biogas plants provide a solution, because a demand-driven supply is possible. Before running such a plant, it is necessary to simulate and optimize the process. This paper provides a new model of a biogas plant, which is as accurate as the standard ADM1 model. The advantage compared to ADM1 is that it is based on only four parameters compared to 28. Applying this model, an optimization was installed, which allows a demand-driven supply by biogas plants. Finally the results are confirmed by several experiments and measurements with a real test plant.
Y1  - 2018
U6  - http://dx.doi.org/10.1016/j.energy.2017.12.073
SN  - 0360-5442
VL  - 145
SP  - 657
EP  - 664
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Schwager, Christian
A1  - Angele, Florian
A1  - Schwarzbözl, Peter
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Model predictive assistance for operational decision making in molten salt receiver systems
T2  - SolarPACES: Solar Power & Chemical Energy Systems
N2  - Despite the challenges of pioneering molten salt towers (MST), it remains the leading technology in central receiver power plants today, thanks to cost effective storage integration and high cost reduction potential. The limited controllability in volatile solar conditions can cause significant losses, which are difficult to estimate without comprehensive modeling [1]. This paper presents a Methodology to generate predictions of the dynamic behavior of the receiver system as part of an operating assistance system (OAS). Based on this, it delivers proposals if and when to drain and refill the receiver during a cloudy period in order maximize the net yield and quantifies the amount of net electricity gained by this. After prior analysis with a detailed dynamic two-phase model of the entire receiver system, two different reduced modeling approaches where developed and implemented in the OAS. A tailored decision algorithm utilizes both models to deliver the desired predictions efficiently and with appropriate accuracy.
KW  - Power plants
KW  - Associated liquids
KW  - Decision theory
KW  - Electrochemistry
Y1  - 2023
SN  - 978-0-7354-4623-6
U6  - http://dx.doi.org/10.1063/5.0151514
SN  - 1551-7616 (online)
SN  - 0094-243X (print)
N1  - 27th International Conference on Concentrating Solar Power and Chemical Energy Systems
27 September–1 October 2021
Online
IS  - 2815 / 1
PB  - AIP conference proceedings / American Institute of Physics
CY  - Melville, NY
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Zamdmer, N.
A1  - Hu, Qing
A1  - Verghese, S.
T1  - Mode-Discriminating Photoconductor and Coplanar Wave-Guide Circuits for Picosecond Sampling. Zamdmer, N.; Hu, Qing ; Verghese, S. ; Förster, A.
JF  - Applied Physics Letters. 74 (1999), H. 7
Y1  - 1999
SN  - 1077-3118
SP  - 1039
EP  - 1041
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
A1  - Kriegesmann, Bernd
A1  - Schaffner, M.
T1  - Mit vereinten Kräften die Wettbewerbsfähigkeit steigern - Kooperation als Antwort auf den In­novationsdruck . Kriegesmann, B.; Thielemann, F.; Schaffner, M.
JF  - Der Druckspiegel. 50 (1995), H. 10
Y1  - 1995
SN  - 0012-6500
SP  - 931
EP  - 935
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
T1  - Mit vereinten Kräften
JF  - Trockenbau, Akustik : Magazin für Planung und Ausführung. 15 (1998), H. 5
Y1  - 1998
SN  - 0179-8006
SP  - 60
EP  - 68
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
T1  - Mit strategischen Allianzen ins nächste Jahrtausend
JF  - Druckspiegel. 53 (1998), H. 5
Y1  - 1998
SN  - 0012-6500
SP  - 21
EP  - 24
ER  - 
TY  - JOUR
A1  - Dielmann, Klaus-Peter
A1  - Ihle, R.
T1  - Mikroturbinen : neue Chancen der Kraft-Wärme-(Kälte-)Kopplung im Leistungsbereich 30 - 200 kW(ind el) / R. Ihle ; K. Dielmann
JF  - Integrierte Energiesysteme : Chancen im Wettbewerb ; Tagung Nürnberg, 4. und 5. April 2000 / VDI-Gesellschaft Energietechnik. - (VDI-Berichte ; 1539)
Y1  - 2000
SN  - 3-18-091539-0
SP  - 245
EP  - 266
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Dielmann, Klaus-Peter
T1  - Mikrogasturbinen : Technik und Anwendung
JF  - BWK : das Energie-Fachmagazin . 53 (2001), H. 6
Y1  - 2001
SN  - 0006-9612
N1  - 2. ISSN: 1618-193X
SP  - 6
EP  - 9
ER  - 
TY  - CHAP
A1  - Dielmann, Klaus-Peter
A1  - Schieke, Wolf
T1  - Mikrogasturbinen - Aufbau und Anwendungen
N2  - Mikrogasturbinen: Funktion, Aufbau, Hersteller, Bauformen, Rekuperatorparameter, Besonderheit der Konstruktion, Regelung, Regelbarkeit, Vergleich mit anderen Systemen, Wirkungs- und Nutzungsgrade, Schadstoffemissionen, Nutzung in Kraft-Wärme-Kopplung, Kraft-Wärme-Kälte-Kopplung
KW  - Gasturbine
KW  - Mikrogasturbine
KW  - Micro turbine
Y1  - 2000
ER  - 
TY  - CHAP
A1  - Bouvy, C.
A1  - Kuperjans, Isabel
T1  - Mikro-Gasturbinen : eine neue Technologie zur Kraft-Wärme-Kopplung in kleinen und mittleren Unternehmen
T2  - Entwicklungslinien der Energietechnik 2004
Y1  - 2004
N1  - Themengebiet Rationelle Energieverwendung
PB  - VDI-Verlag
CY  - Düsseldorf
ET  - CD-ROM-Ausg.
ER  - 
TY  - JOUR
A1  - Dielmann, Klaus-Peter
A1  - Schieke, W.
T1  - Mikro-Gasturbinen : Aufbau und Anwendung
JF  - Gasturbinen für kombinierte Gas-Dampfturbinenanlagen : und Workshop Advanced Power Plant Processes for Solid Fuels Focussing on Combined Cycles ; Tagung Essen, 13. und 14. September 2000 / VDI-Gesellschaft Energietechnik. - (VDI-Berichte ; 1566)
Y1  - 2000
SN  - 3-18-091566-8
N1  - Workshop Advanced Power Plant Processes for Solid Fuels Focussing on Combined Cycles <2000, Essen>
SP  - 187
EP  - 210
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Dielmann, Klaus-Peter
T1  - Mikro-Gasturbine als Kleinst-BHKW-Bericht über Einsatzerfahrungen
JF  - Fünftes VWEW-Fachforum Nahwärme 2000 : Wärmedirekt-Service der Energiedienstleistungsunternehmen mit Fachausstellung Nahwärmetechnik 2000 ; 4. und 5. Mai 2000 in Halle
Y1  - 2000
N1  - Fachforum Nahwärme <5, 2000, Halle, Saale> ; Verlags- und Wirtschaftsgesellschaft der Elektrizitätswerke  <Frankfurt, Main>
SP  - 5.1
EP  - 5.22
PB  - VWEW
CY  - [Frankfurt, Main]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Dieker, C.
A1  - Gerthsen, D.
T1  - Microstructure of the AlAs/GaAs and AlAs/InGaAs resonant tunneling diodes and its correlation with the electrical properties / C. Dieker ; D. Gerthsen ; A. Förster ...
JF  - Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134)
Y1  - 1993
SN  - 0-7503-0290-9
N1  - Royal Microscopical Society Conference on Microscopy of Semiconducting Materials <8, 1993, Oxford> ; MSM <8, 1993, Oxford>
SP  - 253
EP  - ff.
PB  - Institute of Physics
CY  - Bristol [u.a.]
ER  - 
TY  - JOUR
A1  - Hoyler, Friedrich
T1  - Microscopic and semimicroscopic analysis of the reaction 27al- (p,#ga)24mg in the energy range between 20 and 45 mev
JF  - Physical review / C, nuclear physics. 31 (1985), H. 1
Y1  - 1985
SN  - 0556-2813
SP  - 17
ER  - 
TY  - CHAP
A1  - Dielmann, Klaus-Peter
A1  - Peters, Bernhard
T1  - Micro Turbine Using Different Gases and Liquid Fuels
N2  - Micro turbine using different gases and liquid fuels
KW  - Gasturbine
KW  - Mikrogasturbine
KW  - Micro turbine
Y1  - 2002
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Methodology for development of seismic vulnerability curve for existing unreinforced Masonry buildings
T2  - 17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.
N2  - Seismic behavior of an existing unreinforced masonry building built pre-modern code, located in the City of Ohrid, Republic of North Macedonia has been investigated in this paper. The analyzed school building is selected as an archetype in an ongoing project named “Seismic vulnerability assessment of existing masonry structures in Republic of North Macedonia (SeismoWall)”. Two independent segments were included in this research: Seismic hazard assessment by creating a cite specific response spectra and Seismic vulnerability definition by creating a region - specific series of vulnerability curves for the chosen building topology. A reliable Seismic Hazard Assessment for a selected region is a crucial point for performing a seismic risk analysis of a characteristic building class. In that manner, a scenario – based method that incorporates together the knowledge of tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity named Neo Deterministic approach is used for calculation of the response spectra for the location of the building. Variations of the rupturing process are taken into account in the nucleation point of the rupture, in the rupture velocity pattern and in the istribution of the slip on the fault. The results obtained from the multiple scenarios are obtained as an envelope of the response spectra computed for the cite using the procedure Maximum Credible Seismic Input (MCSI). Capacity of the selected building has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) was used for verification of the structural safety of the chosen unreinforced masonry structure. In the process of optimization of the number of samples, computational cost required in a Monte Carlo simulation is significantly reduced since the simulation is performed on a polynomial response surface function for prediction of the structural response. Performance point, found as the intersection of the capacity of the building and the spectra used, is chosen as a response parameter. Five levels of damage limit states based on the capacity curve of the building are defined in dependency on the yield displacement and the maximum displacement. Maximum likelihood estimation procedure is utilized in the process of vulnerability curves determination. As a result, region specific series of vulnerability curves for the chosen type of masonry structures are defined. The obtained probabilities of exceedance a specific damage states as a result from vulnerability curves are compared with the observed damages happened after the earthquake in July 2017 in the City of Ohrid, North Macedonia.
KW  - Masonry structures
KW  - Vulnerability Curves
KW  - Capacity Curve
KW  - Neo-Deterministic
KW  - Seismic Hazard
Y1  - 2020
N1  - Die Konferenz war ursprünglich für den 13-18 September 2020 angesetzt.
ER  - 
TY  - JOUR
A1  - Schmidt, R.
A1  - Tonnesmann, A.
A1  - Förster, Arnold
A1  - Grimm, M.
A1  - Kordos, P.
A1  - Lüth, H.
T1  - Metamorphic InAlAs/InGaAs HEMT's on GaAs substrates using an InP buffer layer
JF  - 8th IEEE International Symposium on High Performance Electron Devices for Microwave and Optoelectronic Applications : EDMO 2000 ; [13 - 14 November 2000, University of Glasgow] / organised by Department of Electronics and Electrical Engineering, University of Glasgow, Glasgow Scotland. MTT/ED/AP/LEO Societies Joint Chapter, United Kingdom and Republic of Ireland Section. With technical co-sponsorship from IEEE Electron Device Society
Y1  - 2000
SN  - 0-7803-6550-X
N1  - EDMO <8, 2000, Glasgow> ; University <Glasgow> / Department of Electronics and Electrical Engineering ; IEEE catalog number 00TH8534
SP  - 95
EP  - 98
PB  - IEEE Operations Center
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
T1  - Messverfahren zur Charakterisierung der Abscheidung luftgetragener Partikel in Filtern
JF  - Schutzmaßnahmen vor mikrobiellen Belastungen des Innenraumes / VII. Lübecker Fachtagung für Umwelthygiene. [Hrsg.:] Reinhard Keller ...
Y1  - 2003
N1  - Lübecker Fachtagung für Umwelthygiene <7, 2003, Lübeck>
SP  - 35
EP  - 61
PB  - Inst. f. Medizinische Mikrobiologie u. Hygiene d. Med. Univ.
CY  - Lübeck
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Zischank, Wolfgang J.
T1  - Melting effects on metal sheets and air termination wires caused by direct lightning strikes
JF  - Conference proceedings : Graz, Österreich, 25. - 29. April 1988 / Gesamtorganisation: Österr. Verb. für Elektrotechnik (ÖVE), Fachausschuß Blitzschutz ... [Red.: G. Diendorfer ...]
Y1  - 1988
SN  - 3-85133-001-3
N1  - International Conference on Lightning Protection >19, 1988, Graz> ; ICLP <19, 1988, Graz> ; Österreichischer Verband für Elektrotechnik / Fachausschuss Blitzschutz
PB  - Eigenverl. des ÖVE
CY  - Wien
ER  - 
TY  - CHAP
A1  - Pieper, Martin
A1  - Wählisch, Georg
T1  - Mehrwert von E-Learning durch fächerübergreifenden Einsatz
T2  - Teaching is Touching the Future & ePS 2016 - Kompetenzorientiertes Lehren, Lernen und Prüfen
Y1  - 2017
SN  - 978-3-946017-05-9
SP  - 193
EP  - 196
PB  - UVW Universitätsverlag Webler
CY  - Bielefeld
ER  -