TY  - CHAP
A1  - Dören, Horst-Peter
A1  - Molitor, M.
A1  - Ertl, Karl-Heinz
ED  - Lugscheider, Erich
T1  - Problematik der Härtemessung an pulverflammgespritzten Verschleißschutzschichten mit Hilfe mobiler, dynamischer Härteprüfverfahren
T2  - Thermische Spritzkonferenz : TS 96 ; Vorträge und Posterbeiträge. Essen 6. bis 8. März 1996. DVS-Berichte. Bd. 175
Y1  - 1996
SN  - 3-87155-480-4
SP  - 249
EP  - 254
PB  - DVS-Verl.
CY  - Düsseldorf
ER  - 
TY  - BOOK
A1  - Dören, Horst-Peter
T1  - Fügetechnik, Schweißtechnik / Horst-Peter Dören (Hrsg.).- 6. Aufl.
Y1  - 2013
SN  - 3-87155-786-2
PB  - DVS Verl.
CY  - Düsseldorf
ER  - 
TY  - BOOK
A1  - Dören, Horst-Peter
T1  - Fügetechnik, Schweißtechnik / Horst-Peter Dören (Hrsg.).- 7., aktualis. Aufl.
Y1  - 2007
SN  - 978-3-87155-907-5
PB  - DVS Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Claßen, R.
A1  - Dören, Horst-Peter
A1  - Codani, L.
A1  - Watermeyer, Klaus
T1  - Begleitende Untersuchungen beim Löten mit vorübergehend flüssiger Phase (TL PB) einschließlich Aktivkomponente an Verbindungen verschiedener Kupfer- und Kohlenstoffwerkstoffe (CFC).
T2  - Fortschritte in der Metallographie. Vortragstexte der 33. Metallographie-Tagung, 15.-17. September 1999 in Rostock. Hrsg. Gerhard Schneider... Praktische Metallographie. Sonderband 31.
Y1  - 2013
SP  - 97
EP  - 104
PB  - Werkstoff-Informationsgesellschaft
CY  - Frankfurt
ER  - 
TY  - CHAP
A1  - Aydin, I.
A1  - Dören, Horst-Peter
A1  - Küpper, H.
T1  - Plasma-Auftragschweißen mit Wolframschmelzkarbid-haltigen Metallpulvern und ihre Einsatzgebiete
T1  - PTA surfacing with tungsten molten carbides containing metal powders and the area of their applications
T2  - Thermische Spritzkonferenz = Thermal Spraying Conference. Erich Lugscheider [Hrsg.] DVS-Berichte 175
Y1  - 2013
SN  - 3-87155-480-4
SP  - 137
EP  - 142
PB  - DVS-Verlag
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Dören, Horst-Peter
A1  - Plaschka, K.
A1  - Pohl, M.
T1  - Die Untersuchung von Schutzgasschweißdrähten mit Hilfe des Rasterelektronenmikroskops
T1  - Investigation of wires for gas shielded arc welding using the scanning electron microscope
T2  - Fortschritte in der Metallographie. Berichte der 7. Internationalen Metallographie-Tagung Leoben 15. bis 17. Oktober 1986. Sonderbände der Praktischen Metallographie. 18
Y1  - 1987
SN  - 0343-3579
SP  - 333
EP  - 345
PB  - Riederer
CY  - Stuttgart
ER  - 
TY  - CHAP
A1  - Dören, Horst-Peter
A1  - Wernicke, K.
T1  - Einfluß der Schweißparameter beim Plasmaauftragschweißen mit Pulvern
T1  - Influence of the welding parameters in plasma-arc overlay welding with powder
T2  - Schweißen und Schneiden '85 = Welding and Cutting '85. Vorträge der Großen Schweißtechnischen Tagung in Essen vom 11. bis 13. September 1985. Veranst.: Deutscher Verband für Schweißtechnik (DVS). DVS-Berichte. 100
Y1  - 1985
SN  - 3-87155-405-7
SP  - 72
EP  - 76
PB  - Dt. Verl. für Schweißtechnik (DVS)
CY  - Düsseldorf
ER  - 
TY  - BOOK
A1  - Dören, Horst-Peter
T1  - Anwendung von AlN- bzw. AlN-Al2O3-Mischungen als Festelektrolyt in Eisenschmelzen bei 1640° C
Y1  - 1977
N1  - Dissertation, RWTH Aachen
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Dören, Horst-Peter
T1  - Fügetechnik, Schweißtechnik. Horst-Peter Dören (Hrsg.).- 8., aktualis. und erw. Aufl.
Y1  - 2012
SN  - 978-3-87155-999-0
PB  - DVS Media
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Braun, Christian
T1  - Neuerungen bei der Blitzschutznorm. Teil 2
JF  - etz Elektrotechnik und Automation
Y1  - 2013
SN  - 0170-1711
N1  - Printausg. in der Bibliothek der FH Aachen vorhanden: 23 Z 133 ; 63 ZS 035
VL  - Bd. 134
IS  - H. 8
SP  - 66
EP  - 69
PB  - VDE-Verlag
CY  - Wuppertal
ER  - 
TY  - CHAP
A1  - Hartung, I.
A1  - Dilger, Klaus
A1  - Hellmanns, Mark
A1  - Böhme, Stefan
T1  - Repair of non-weldable steel structures to extend the life cycle
T2  - Proceedings of the IIW International Conference on Advances in Welding and Allied Technologies : July 16 - 17, 2009, Singapore. (Welding in the world ; 53.2009, special issue)
Y1  - 2009
SN  - 978-981-08-3259-9
SP  - 569
EP  - 574
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Böhm, Stefan
A1  - Dilger, Klaus
T1  - Weight and noise reduction in power transmissions through epoxy resin foams
T2  - Proceedings of the 31st annual meeting of the Adhesion Society : 17. - 20.2.2008, Austin, Texas
Y1  - 2008
SP  - 291
EP  - 293
PB  - Adhesion Society
CY  - Blacksburg
ER  - 
TY  - RPRT
A1  - Hellmanns, Mark
A1  - Hesse, Joachim
T1  - Geräuschminderung und Leichtbau in Leistungsgetrieben durch den Einsatz von Werkstoffverbunden : Abschlussbericht zu Nr. 3.1 : Berichtszeitraum: 1.3.2005 - 31.8.2007
Y1  - 2007
PB  - Bundesministerium für Wirtschaft und Arbeit (BMWi)
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Böhm, Stefan
A1  - Dilger, Klaus
T1  - Implementation of a velocity controlled manual applicator for adhesives and sealants in the automotive industry in consideration of quality control
T2  - Proceedings of the 29th annual meeting of the Adhesion Society : 19. - 22.2.2006, Jacksonville, Florida
Y1  - 2006
SN  - 1086-9506
SP  - 68
EP  - 70
PB  - Adhesion Society
CY  - Blacksburg, Va.
ER  - 
TY  - JOUR
A1  - Hellmanns, Mark
A1  - Böhm, Stefan
A1  - Dilger, Klaus
T1  - Manual applications of adhesives
JF  - Journal of adhesion and interface
Y1  - 2006
VL  - Vol. 7
IS  - No. 4
SP  - 24
EP  - 27
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Böhm, Stefan
A1  - Dilger, Klaus
A1  - Welters, T.
T1  - Neue Möglichkeiten der Klebstoffverarbeitung durch geschwindigkeitsproportionalen Handauftrag
T2  - Adhesive bonding and hybrid bonding in body-in-white shop and assembly : proceedings, 25/26 April 2006, Bad Nauheim/Frankfurt
Y1  - 2006
SP  - 81
PB  - Technik & Kommunikation Verl.-GmbH
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Böhm, Stefan
A1  - Dilger, Klaus
T1  - Progress of the manual application of adhesives
T2  - Proceedings of the 3rd World Congress on Adhesion and Related Phenomena : WCARP-III, October 15 -18, 2006, Beijing, China
Y1  - 2006
SP  - 275
EP  - 277
PB  - Beijing Adhesion Society of China
CY  - Beijing
ER  - 
TY  - CHAP
A1  - Böhm, Stefan
A1  - Hellmanns, Mark
A1  - Backes, Andreas
A1  - Dilger, Klaus
T1  - Lock-in thermography based NDT of automotive parts
T2  - Proceedings of the 3rd World Congress on Adhesion and Related Phenomena : WCARP-III, October 15 -18, 2006, Beijing, China
Y1  - 2006
SP  - 382
EP  - 384
PB  - Beijing Adhesion Society of China
CY  - Beijing
ER  - 
TY  - JOUR
A1  - Böhm, Stefan
A1  - Hellmanns, Mark
A1  - Backes, Andreas
A1  - Dilger, Klaus
T1  - Lock-in thermography based NDT of parts for the automotive industry
JF  - Journal of adhesion and interface
Y1  - 2006
VL  - Vol. 7
IS  - No. 4
SP  - 10
EP  - 12
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Hartung, I.
A1  - Dilger, Klaus
A1  - Böhm, Stefan
T1  - Quality assurance of manual guided joining and welding devices
T2  - Proceedings of the IIW International Conference on Advances in Welding and Allied Technologies : July 16 - 17, 2009, Singapore
Y1  - 2009
SN  - 9789810832605
SP  - 219
EP  - 222
PB  - International Institute of Welding
CY  - Roissy
ER  - 
TY  - THES
A1  - Hellmanns, Mark
T1  - Qualitätssicherung von handgeführten Applikationsprozessen durch Nachverfolgung der Handhabungseinheit. (Fortschrittsberichte aus der Produktionstechnik ; 1)
Y1  - 2012
SN  - 978-3-8440-1379-5
N1  - Zugl.: Kassel, Univ., Diss., 2012
PB  - Aachen
CY  - Shaker
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Fischer, F.
A1  - Dilger, Klaus
T1  - Applikation und Einsatz von faserverstärkten Klebstoffen im Bauwesen
T2  - Tagungsband / 13. Kolloquium Gemeinsame Forschung in der Klebtechnik : 26. und 27. Februar 2013, Frankfurt am Main
Y1  - 2013
SP  - 61
EP  - 62
PB  - DECHEMA
CY  - Frankfurt a.M.
ER  - 
TY  - CHAP
A1  - Goldbach, Daniel
T1  - Diagnosemaßnahmen in der funktionalen Sicherheit
T2  - Diagnose in mechatronischen Fahrzeugsystemen, VI : neue Verfahren für Test, Prüfung und Diagnose von E/E-Systemen im Kfz : 7. Tagung "Diagnose in Mechatronischen Fahrzeugsystemen". Bernhard Bäker ... (Hrsg.)
Y1  - 2013
SN  - 978-3-8169-3221-5
SP  - 179
EP  - 198
PB  - Expert Verlag
CY  - Renningen
ER  - 
TY  - CHAP
A1  - Goldbach, Daniel
T1  - Zuverlässigkeitsanalyse zur Verifikation der Einhaltung von quantitativen Sicherheitsanforderungen.
T2  - Diagnose in mechatronischen Fahrzeugsystemen V : neue Verfahren für Test, Prüfung und Diagnose von E/E-Systemen im Kfz ; [anlässlich der 6. Tagung "Diagnose in Mechatronischen Fahrzeugsystemen" in Dresden]. Bernard Bäker ... (Hrsg.)
Y1  - 2012
SN  - 978-3-8169-3149-2
SP  - 116
EP  - 132
PB  - Expert Verlag
CY  - Renningen
ER  - 
TY  - CHAP
A1  - Stollenwerk, Dominik
A1  - Kuvarakul, T.
A1  - Kuperjans, Isabel
T1  - Renewable energy supply for power dominated, energy intense production processes - a systematic conversion approach for the anodizing process
T2  - IOP conference series: Earth and environmental science (EES)
Y1  - 2013
SN  - 1755-1315
SN  - 1755-1307
VL  - Vol. 16
IS  - H. 1
SP  - 012142/1
EP  - 012142/4
ER  - 
TY  - JOUR
A1  - Sabitova, A.
A1  - Ebert, Ph.
A1  - Lenz, A.
A1  - Schaafhausen, S.
A1  - Ivanova, L.
A1  - Dähne, M.
A1  - Hoffmann, A.
A1  - Dunin-Borkowski, R. E.
A1  - Förster, Arnold
A1  - Grandidier, B.
A1  - Eisele, H.
T1  - Intrinsic bandgap of cleaved ZnO(112¯0) surfaces
JF  - Applied physics letters
Y1  - 2013
SN  - 1077-3118 (E-Journal); 0003-6951 (Print)
VL  - Vol. 102
SP  - 021608
ER  - 
TY  - CHAP
A1  - Takenaga, Shoko
A1  - Herrera, Cony F.
A1  - Werner, Frederik
A1  - Biselli, Manfred
A1  - Schnitzler, Thomas
A1  - Schöning, Michael Josef
A1  - Öhlschläger, Peter
A1  - Wagner, Torsten
T1  - Detection of the metabolic activity of cells by differential measurements based on a single light-addressable potentiometric sensor chip
T2  - 11. Dresdner Sensor-Symposium : 9.-11.12.2013
Y1  - 2013
SN  - 978-3-9813484-5-3
SP  - 63
EP  - 67
ER  - 
TY  - CHAP
A1  - Goldbach, Daniel
A1  - Hochrein, Ulrich
T1  - Functional Safety Management und Analysemethoden in der Entwicklung eines sicherheitskritischen Systems im Automobil
T2  - Diagnose in mechatronischen Fahrzeugsystemen IV : neue Verfahren für Test, Prüfung und Diagnose von E/E-Systemen im Kfz :  [anlässlich der 5. Tagung "Diagnose in Mechatronischen Fahrzeugsystemen"]
Y1  - 2011
SN  - 978-3-8169-3068-6
SP  - 175
EP  - 194
PB  - Expert Verlag
CY  - Renningen
ER  - 
TY  - JOUR
A1  - Goldbach, Daniel
T1  - Fahrstabilitätserhöhung bei Gespannen durch Querverschiebung des Anhängerkupplungspunktes
JF  - mechatronik mobil
Y1  - 2010
SN  - 1867-7371
VL  - 2
IS  - 1
SP  - 23
EP  - 29
PB  - Expert Verlag
CY  - Renningen
ER  - 
TY  - CHAP
A1  - Goldbach, Daniel
T1  - Management der funktionalen Sicherheit einer Entwicklung eines sicherheitskritischen Systems im Bereich Nutzfahrzeuge
T2  - Commercial vehicle technology 2010 : proceedings of the 1st Commercial Vehicle Technology Symposium (CVT 2010), March 16 - 18, 2010, Kaiserslautern / K. Berns ... (ed.)
Y1  - 2010
SN  - 978-3-8322-9040-5
SP  - 487
EP  - 495
PB  - Shaker
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Goldbach, Daniel
A1  - Ament, Christoph
ED  - Scharff, Peter
T1  - Stabilized reversing with vehicle trailer combinations
T2  - Crossing borders within the ABC : automation, biomedical engineering and computer science; proceedings; 55. IWK Internationales Wissenschaftliches Kolloquium; 13 - 17 September 2010, Ilmenau
Y1  - 2010
SN  - 978-3-938843-53-6
SP  - 352
EP  - 357
PB  - Verl. ISLE
CY  - Ilmenau
ER  - 
TY  - BOOK
A1  - Goldbach, Daniel
T1  - Zur Verbesserung des Fahrverhaltens von Zugfahrzeug-Anhänger-Gespannen. (Fortschrittberichte VDI. Reihe 12, Verkehrstechnik, Fahrzeugtechnik ; Nr. 703)
Y1  - 2009
SN  - 978-3-18-370312-8
N1  - Zugl.: Ilmenau, Techn. Univ., Diss., 2009
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - BOOK
A1  - Goldbach, Daniel
T1  - Steuerung und Regelung der aktiven Anhängerkupplung eines Farhzeuggespanns
Y1  - 2002
N1  - Fulda, Fachhochsch., Dipl.-Arbeit, 2002
ER  - 
TY  - CHAP
A1  - Kern, Alexander
T1  - Die neue DIN EN 62305-2 (VDE 0185-305-2) Ed.2:2013-02 - Änderungen zur Ed.l und zugehörige Beiblätter
T2  - 10. VDE, VBB-Blitzschutztagung : Vorträge der 10. VDE, ABB-Fachtagung vom 24. bis 25. Oktober 2013 in Neu-Ulm. (VDE-Fachbericht ; 70)
Y1  - 2013
SN  - 978-3-8007-3540-2
SP  - 9
EP  - 16
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Scheibe, K.
A1  - Kern, Alexander
T1  - Stand der Normung für Überspannungsschutzgeräte
T2  - 10. VDE, VBB-Blitzschutztagung : Vorträge der 10. VDE, ABB-Fachtagung vom 24. bis 25. Oktober 2013 in Neu-Ulm. (VDE-Fachbericht ; 70)
Y1  - 2013
SN  - 978-3-8007-3540-2
SP  - 23
EP  - 27
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Alebouyeh Samami, Behzad
A1  - Pieper, Martin
A1  - Breitbach, Gerd
A1  - Hodapp, Josef
T1  - Heat production in the windings of the stators of electric machines under stationary condition
JF  - Heat and mass transfer
N2  - In electric machines due to high currents and resistive losses (joule heating) heat is produced. To avoid damages by overheating the design of effective cooling systems is required. Therefore the knowledge of heat sources and heat transfer processes is necessary. The purpose of this paper is to illustrate a good and effective calculation method for the temperature analysis based on homogenization techniques. These methods have been applied for the stator windings in a slot of an electric machine consisting of copper wires and resin. The key quantity here is an effective thermal conductivity, which characterizes the heterogeneous wire resin-arrangement inside the stator slot. To illustrate the applicability of the method, the analysis of a simplified, homogenized model is compared with the detailed analysis of temperature behavior inside a slot of an electric machine according to the heat generation. We considered here only the stationary situation. The achieved numerical results are accurate and show that the applied homogenization technique works in practice. Finally the results of simulations for the two cases, the original model of the slot and the homogenized model chosen for the slot (unit cell), are compared to experimental results.
Y1  - 2014
U6  - https://doi.org/10.1007/s00231-014-1371-8
SN  - 0947-7411 (Print) ; 1432-1181 (E-Journal)
VL  - 50
SP  - 1707
EP  - 1716
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - CHAP
A1  - Goldbach, Daniel
ED  - Wahl, Michael
T1  - Diagnosemaßnahmen im Umfeld der Funktionalen Sicherheit
T2  - AmE 2014 - Automotive meets electronics [Elektronische Ressource] : Beiträge der 5. GMM-Fachtagung vom 18. bis 19. Februar 2014 in Dortmund / Veranst.: VDE/VDI-Gesellschaft Mikroelektronik, Mikrosystem- und Feinwerktechnik (GMM)
Y1  - 2014
SN  - 978-3-8007-3580-8
N1  - GMM-Fachbericht ; 78
SP  - 172
EP  - 179
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jildeh, Zaid B.
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Pieper, Martin
T1  - Simulating the electromagnetic‐thermal treatment of thin aluminium layers for adhesion improvement
JF  - Physica status solidi (a)
N2  - A composite layer material used in packaging industry is made from joining layers of different materials using an adhesive. An important processing step in the production of aluminium-containing composites is the surface treatment and consequent coating of adhesive material on the aluminium surface. To increase adhesion strength between aluminium layer and the adhesive material, the foil is heat treated. For efficient heating, induction heating was considered as state-of-the-art treatment process. Due to the complexity of the heating process and the unpredictable nature of the heating source, the control of the process is not yet optimised. In this work, a finite element analysis of the process was established and various process parameters were studied. The process was simplified and modelled in 3D. The numerical model contains an air domain, an aluminium layer and a copper coil fitted with a magnetic field concentrating material. The effect of changing the speed of the aluminium foil (or rolling speed) was studied with the change of the coil current. Statistical analysis was used for generating a general control equation of coil current with changing rolling speed.
Y1  - 2015
U6  - https://doi.org/10.1002/pssa.201431893
SN  - 1862-6319
VL  - Vol. 212
IS  - 6
SP  - 1234
EP  - 1241
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Pechnig, Renate
A1  - Taugs, Renate
A1  - Kröger, Jens
A1  - Thomsen, Claudia
A1  - Hesse, Fabian
A1  - Liebsch-Doerschner, Thomas
T1  - Erstellung eines geothermischen Modells für Teile Hamburgs und anliegende Gebiete
JF  - BBR - Fachmagazin für Brunnen- und Leitungsbau
Y1  - 2010
SN  - 1611-1478
VL  - 61
IS  - 12
SP  - 52
EP  - 59
PB  - WVGW Wirtschafts- u. Verl.Ges. Gas und Wasser
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Berg, Milena
A1  - Angerer, Anita
A1  - Martinelli, Walter
A1  - Hammer, Stephan
A1  - Mottaghy, Darius
T1  - Erkundung des geothermischen Potenzials eines ehemaligen Untertagebergbaus
JF  - BBR - Fachmagazin für Brunnen- und Leitungsbau
Y1  - 2013
VL  - 64
IS  - 6
SP  - 46
EP  - 52
ER  - 
TY  - CHAP
A1  - Mottaghy, Darius
A1  - Majorowicz, Jacek
A1  - Rath, Volker
T1  - Ground Surface Temperature Histories Reconstructed from Boreholes in Poland: Implications for Spatial Variability
T2  - The Polish Climate in the European Context: An Historical Overview
Y1  - 2009
SN  - 978-90-481-3167-9
U6  - https://doi.org/10.1007/978-90-481-3167-9_17
SP  - 375
EP  - 387
PB  - Springer Science+Business Media
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Pechnig, Renate
A1  - Vogt, Christian
T1  - The geothermal project Den Haag: 3D numerical models for temperature prediction and reservoir simulation
JF  - Geothermics
N2  - The proposed Den Haag Zuidwest district heating system of the city of The Hague consists of a deep doublet in a Jurassic sandstone layer that is designed for a production temperature of 75 °C and a reinjection temperature of 40 °C at a flow rate of 150 m3 h−1. The prediction of reservoir temperature and production behavior is crucial for success of the proposed geothermal doublet. This work presents the results of a study of the important geothermal and geohydrological issues for the doublet design. In the first phase of the study, the influences of the three-dimensional (3D) structures of anticlines and synclines on the temperature field were examined. A comprehensive petrophysical investigation was performed to build a large scale 3D-model of the reservoir. Several bottomhole temperatures (BHTs), as well as petrophysical logs were used to calibrate the model using thermal conductivity measurements on 50 samples from boreholes in different lithological units in the study area. Profiles and cross sections extracted from the calculated temperature field were used to study the temperature in the surrounding areas of the planned doublet. In the second phase of the project, a detailed 3D numerical reservoir model was set up, with the aim of predicting the evolution of the producer and injector temperatures, and the extent of the cooled area around the injector. The temperature model from the first phase provided the boundary conditions for the reservoir model. Hydraulic parameters for the target horizons, such as porosity and permeability, were taken from data available from the nearby exploration wells. The simulation results are encouraging as no significant thermal breakthrough is predicted. For the originally planned location of the producer, the extracted water temperature is predicted to be around 79 °C, with an almost negligible cooling in the first 50 years of production. When the producer is located shallower parts of the reservoir, the yield water temperatures is lower, starting at ≈76 °C and decreasing to ≈74 °C after 50 years of operation. This comparatively larger decrease in temperature with time is caused by the structural feature of the reservoir, namely a higher dip causes the cooler water to easily move downward. In view of the poor reservoir data, the reservoir simulation model is constructed to allow iterative updates using data assimilation during planned drilling, testing, and production phases. Measurements during an 8 h pumping test carried out in late 2010 suggest that a flow rate of 150 m3 h−1 is achievable. Fluid temperatures of 76.5 °C were measured, which is very close to the predicted value.
Y1  - 2011
U6  - https://doi.org/10.1016/j.geothermics.2011.07.001
SN  - 0375-6505
VL  - 40
IS  - 3
SP  - 199
EP  - 210
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Kürten, Sylvia
A1  - Mottaghy, Darius
A1  - Ziegler, Martin
T1  - Wärmeübergangswiderstand bei flächigen thermo-aktiven Bauteilen am Beispiel thermo-aktiver Abdichtungselemente
JF  - Bautechnik
Y1  - 2013
U6  - https://doi.org/10.1002/bate.201300035
SN  - 1437-0999
VL  - 90
IS  - 7
SP  - 387
EP  - 394
PB  - Ernst & Sohn
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Schwamborn, G.
A1  - Rath, V.
T1  - Past climate changes and permafrost depth at the Lake El'gygytgyn site: implications from data and thermal modeling
JF  - Climate of the Past
Y1  - 2013
U6  - https://doi.org/10.5194/cp-9-119-2013
SN  - 1814-9332
VL  - 9
IS  - 1
SP  - 119
EP  - 133
PB  - Copernicus
CY  - Katlenburg-Lindau
ER  - 
TY  - JOUR
A1  - Vogt, Christian
A1  - Iwanowski-Strahser, Katha
A1  - Marquart, Gabriele
A1  - Arnold, Juliane
A1  - Mottaghy, Darius
A1  - Pechnig, Renate
A1  - Gnjezda, Daniel
A1  - Clauser, Christoph
T1  - Modeling contribution to risk assessment of thermal production power for geothermal reservoirs
JF  - Renewable Energy
Y1  - 2013
U6  - https://doi.org/10.1016/j.renene.2012.11.026
SN  - 0960-1481
VL  - 53
SP  - 230
EP  - 241
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Ziegler, M.
A1  - Schüller, R.
A1  - Mottaghy, Darius
T1  - Numerical simulation of energy consumption of artificial ground freezing applications subject to water seepage
T1  - Simulation numérique de la consummation d´énergie des applications pour la congélation artificielle du sol soumise au flux de l´eau souterraine
T2  - Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
Y1  - 2013
SP  - 2985
EP  - 2988
ER  - 
TY  - JOUR
A1  - Kürten, Sylvia
A1  - Mottaghy, Darius
A1  - Ziegler, Martin
T1  - Planung, Auslegung und Dimensionierung von thermo-aktiven Bauteilen am Beispiel thermo-aktiver Abdichtungselemente
JF  - Geothermie, Bohr- und Brunnentechnik
Y1  - 2014
SP  - 18
EP  - 20
PB  - Ernst & Sohn
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Schellschmidt, R.
A1  - Popov, Y. A.
A1  - Clauser, C.
A1  - Kukkonen, I. T.
A1  - Nover, G.
A1  - Milanovsky, S.
A1  - Romushkevich, R. A.
T1  - New heat flow data from the immediate vicinity of the Kola super-deep borehole: Vertical variation in heat flow density confirmed and attributed to advection
JF  - Tectonophysics
Y1  - 2005
U6  - https://doi.org/10.1016/j.tecto.2005.03.005
SN  - 1879-3266
VL  - 401
IS  - 1-2
SP  - 119
EP  - 142
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Rath, Volker
T1  - Latent heat effects in subsurface heat transport modelling and their impact on palaeotemperature reconstructions
JF  - Geophysical Journal International
Y1  - 2006
U6  - https://doi.org/10.1111/j.1365-246X.2005.02843.x
SN  - 1365-246X
VL  - 164
IS  - 1
SP  - 236
EP  - 245
ER  - 
TY  - JOUR
A1  - Vogt, C.
A1  - Mottaghy, Darius
A1  - Wolf, A.
A1  - Rath, V.
A1  - Pechnig, R.
A1  - Clauser, C.
T1  - Reducing temperature uncertainties by stochastic geothermal reservoir modelling
JF  - Geophysical Journal International
N2  - Quantifying and minimizing uncertainty is vital for simulating technically and economically successful geothermal reservoirs. To this end, we apply a stochastic modelling sequence, a Monte Carlo study, based on (i) creating an ensemble of possible realizations of a reservoir model, (ii) forward simulation of fluid flow and heat transport, and (iii) constraining post-processing using observed state variables. To generate the ensemble, we use the stochastic algorithm of Sequential Gaussian Simulation and test its potential fitting rock properties, such as thermal conductivity and permeability, of a synthetic reference model and—performing a corresponding forward simulation—state variables such as temperature. The ensemble yields probability distributions of rock properties and state variables at any location inside the reservoir. In addition, we perform a constraining post-processing in order to minimize the uncertainty of the obtained distributions by conditioning the ensemble to observed state variables, in this case temperature. This constraining post-processing works particularly well on systems dominated by fluid flow. The stochastic modelling sequence is applied to a large, steady-state 3-D heat flow model of a reservoir in The Hague, Netherlands. The spatial thermal conductivity distribution is simulated stochastically based on available logging data. Errors of bottom-hole temperatures provide thresholds for the constraining technique performed afterwards. This reduce the temperature uncertainty for the proposed target location significantly from 25 to 12 K (full distribution width) in a depth of 2300 m. Assuming a Gaussian shape of the temperature distribution, the standard deviation is 1.8 K. To allow a more comprehensive approach to quantify uncertainty, we also implement the stochastic simulation of boundary conditions and demonstrate this for the basal specific heat flow in the reservoir of The Hague. As expected, this results in a larger distribution width and hence, a larger, but more realistic uncertainty estimate. However, applying the constraining post-processing the uncertainty is again reduced to the level of the post-processing without stochastic boundary simulation. Thus, constraining post-processing is a suitable tool for reducing uncertainty estimates by observed state variables.
Y1  - 2010
U6  - https://doi.org/10.1111/j.1365-246X.2009.04498.x
SN  - 1365-246X
VL  - 181
IS  - 1
SP  - 321
EP  - 333
PB  - Oxford University Press
CY  - Oxford
ER  -