TY  - CHAP
A1  - Teixeira Boura, Cristiano José
A1  - Eckstein, J.
A1  - Felinks, J.
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - Schmitz, S.
T1  - 3-D CFD simulation of an air-sand heat exchanger
T2  - SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain
Y1  - 2011
CY  - Granada
ER  - 
TY  - CHAP
A1  - Kreyer, Jörg
A1  - Müller, Marvin
A1  - Esch, Thomas
T1  - A Map-Based Model for the Determination of Fuel Consumption for Internal Combustion Engines as a Function of Flight Altitude
N2  - In addition to very high safety and reliability requirements, the design of internal combustion engines (ICE) in aviation focuses on economic efficiency. The objective must be to design the aircraft powertrain optimized for a specific flight mission with respect to fuel consumption and specific engine power. Against this background, expert tools provide valuable decision-making assistance for the customer. In this paper, a mathematical calculation model for the fuel consumption of aircraft ICE is presented. This model enables the derivation of fuel consumption maps for different engine configurations. Depending on the flight conditions and based on these maps, the current and the integrated fuel consumption for freely definable flight emissions is calculated. For that purpose, an interpolation method is used, that has been optimized for accuracy and calculation time. The mission boundary conditions flight altitude and power requirement of the ICE form the basis for this calculation. The mathematical fuel consumption model is embedded in a parent program. This parent program presents the simulated fuel consumption by means of an example flight mission for a representative airplane. The focus of the work is therefore on reproducing exact consumption data for flight operations. By use of the empirical approaches according to Gagg-Farrar [1] the power and fuel consumption as a function of the flight altitude are determined. To substantiate this approaches, a 1-D ICE model based on the multi-physical simulation tool GT-Suite® has been created. This 1-D engine model offers the possibility to analyze the filling and gas change processes, the internal combustion as well as heat and friction losses for an ICE under altitude environmental conditions. Performance measurements on a dynamometer at sea level for a naturally aspirated ICE with a displacement of 1211 ccm used in an aviation aircraft has been done to validate the 1-D ICE model. To check the plausibility of the empirical approaches with respect to the fuel consumption and performance adjustment for the flight altitude an analysis of the ICE efficiency chain of the 1-D engine model is done. In addition, a comparison of literature and manufacturer data with the simulation results is presented.
Y1  - 2020
U6  - https://doi.org/10.25967/490162
N1  - 68. Deutscher Luft- und Raumfahrtkongress 30.09.-02.10.2019, Darmstadt
PB  - DGLR
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Schwarzer, Klemens
T1  - A new kind of efficient solar cookers with and without temporary heat storage
T2  - Advances in solar cooking : proceedings of the First World Conference on Solar Cooking, Stockton, California, USA, June 19 - 20, 1992 / ed. by Edwin Pejack
Y1  - 1992
SP  - 107
EP  - 112
PB  - Solar Box Cookers International
CY  - Sacramento, Calif.
ER  - 
TY  - CHAP
A1  - Schwarzer, Klemens
A1  - Wiedenfeld, M.
A1  - Bansal, Narenda K.
A1  - Ertl, Karl-Heinz
T1  - A novel solar sterilization and water destillation system : experiment and thermodynamic analysis
T2  - 1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 2,II
Y1  - 1991
SN  - 0-08-041690-x
SP  - 2276
EP  - 2281
PB  - Pergamon Pr.
CY  - Oxford
ER  - 
TY  - CHAP
A1  - Späte, Frank
A1  - Hafner, B.
A1  - Schwarzer, Klemens
T1  - A system for solar process heat for decentralized applications in developing countries
T2  - ISES 1999 Solar World Congress, Jerusalem, Israel, July 4-9, 1999 : conference proceedings / ed. Gershon Grossman. Vol. 3
Y1  - 2000
SN  - 0-080-043895-4
SP  - 236
EP  - 291
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - CHAP
A1  - Pomp, Stefan
A1  - Schwarzbözl, Peter
A1  - Koll, Gerrit
A1  - Hennecke, Klaus
A1  - Schmitz, Mark
A1  - Hoffschmidt, Bernhard
T1  - Advanced concept for a solar thermal power plant with open volumetric air receiver
T2  - SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France
Y1  - 2010
SP  - 97
EP  - 98
PB  - Soc. OSC
CY  - Saint Maur
ER  - 
TY  - CHAP
A1  - Baumann, Torsten
A1  - Teixeira Boura, Cristiano José
A1  - Eckstein, Julian
A1  - Felinks, Jan
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - Schmitz, Stefan
A1  - Zunft, Stefan
T1  - Air-sand heat exchanger
T2  - 6th International Renewable Energy Storage Conference (IRES 2011) :  November 28 - 30, 2011, bcc Berlin Congress Center, Berlin, Germany / EUROSOLAR ...
Y1  - 2011
PB  - Eurosolar
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Warerkar, Shashikant
A1  - Schmitz, Stefan
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - Reißel, Martin
A1  - Tamme, Rainer
T1  - Air-sand heat exchanger for high-temperature storage
T2  - Proceedings of the ASME 3rd International Conference on Energy Sustainability : July 19 - 23, 2009, San Francisco, California, USA. Vol. 2
Y1  - 2009
SN  - 978-0-7918-4890-6
SP  - 655
EP  - 661
PB  - ASME
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Baumann, Torsten
A1  - Teixeira Boura, Cristiano José
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - Schmitz, Stefan
A1  - Zunft, Stefan
T1  - Air-sand heat exchanger: materials and flow properties
T2  - SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain
Y1  - 2011
CY  - Granada
ER  - 
TY  - CHAP
A1  - Baumann, T.
A1  - Teixeira Boura, Cristiano José
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - O'Connell, B.
A1  - Schmitz, S.
A1  - Zunft, S.
T1  - Air/Sand heat exchanger design and materials for solar thermal power plant applications
T2  - SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France
Y1  - 2010
SP  - 146
EP  - 147
PB  - Soc. OSC
CY  - Saint Maur
ER  - 
TY  - CHAP
A1  - Ziolko, C.
A1  - Schmitz, M.
A1  - Sattler, Johannes, Christoph
A1  - Khedim, Ahmed
A1  - Hoffschmidt, Bernhard
T1  - AlSol - the open volumetric receiver technology moves to Africa
T2  - SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France
Y1  - 2010
SP  - 93
EP  - 94
PB  - Soc. OSC
CY  - Saint Maur
ER  - 
TY  - CHAP
A1  - Vaeßen, Christiane
A1  - Alexopoulos, Spiros
A1  - Kluczka, Sven
A1  - Sattler, Johannes Christoph
A1  - Roeb, M.
A1  - Neises, M.
A1  - Abdellatif, T.
T1  - Analyse der Verfahren zur solaren Methanolproduktion aus CO2
T2  - Forschung und Entwicklung für solarthermische Kraftwerke : 14. Kölner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus Jülich der FH Aachen : Kurzfassungen der Vorträge und Poster
Y1  - 2011
SP  - 2 S.
PB  - DLR
CY  - Köln
ER  - 
TY  - CHAP
A1  - Gedle, Yibekal
A1  - Schmitz, Mark
A1  - Gielen, Hans
A1  - Schmitz, Pascal
A1  - Herrmann, Ulf
A1  - Teixeira Boura, Cristiano José
A1  - Mahdi, Zahra
A1  - Caminos, Ricardo Alexander Chico
A1  - Dersch, Jürgen
T1  - Analysis of an integrated CSP-PV hybrid power plant
T2  - SOLARPACES 2020
N2  - In the past, CSP and PV have been seen as competing technologies. Despite massive reductions in the electricity generation costs of CSP plants, PV power generation is - at least during sunshine hours - significantly cheaper. If electricity is required not only during the daytime, but around the clock, CSP with its inherent thermal energy storage gets an advantage in terms of LEC. There are a few examples of projects in which CSP plants and PV plants have been co-located, meaning that they feed into the same grid connection point and ideally optimize their operation strategy to yield an overall benefit. In the past eight years, TSK Flagsol has developed a plant concept, which merges both solar technologies into one highly Integrated CSP-PV-Hybrid (ICPH) power plant. Here, unlike in simply co-located concepts, as analyzed e.g. in [1] – [4], excess PV power that would have to be dumped is used in electric molten salt heaters to increase the storage temperature, improving storage and conversion efficiency. The authors demonstrate the electricity cost sensitivity to subsystem sizing for various market scenarios, and compare the resulting optimized ICPH plants with co-located hybrid plants. Independent of the three feed-in tariffs that have been assumed, the ICPH plant shows an electricity cost advantage of almost 20% while maintaining a high degree of flexibility in power dispatch as it is characteristic for CSP power plants. As all components of such an innovative concept are well proven, the system is ready for commercial market implementation. A first project is already contracted and in early engineering execution.
KW  - Hybrid energy system
KW  - Power plants
KW  - Electricity generation
KW  - Energy storage
KW  - Associated liquids
Y1  - 2022
SN  - 978-0-7354-4195-8
U6  - https://doi.org/10.1063/5.0086236
SN  - 1551-7616 (online)
SN  - 0094-243X (print)
N1  - SOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems, 28 September–2 October 2020, Freiburg, Germany
IS  - 2445 / 1
PB  - AIP conference proceedings / American Institute of Physics
CY  - Melville, NY
ER  - 
TY  - CHAP
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - May, Martin
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Analysis of volumetric solar radiation absorbers made of wire meshes
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - https://doi.org/10.1063/1.5117521
SN  - 0094243X
VL  - 2126
SP  - 030009-1
EP  - 030009-6
ER  - 
TY  - CHAP
A1  - Sauerborn, Markus
A1  - Liebenstund, Lena
A1  - Raue, Markus
A1  - Mang, Thomas
A1  - Herrmann, Ulf
A1  - Dueing, Andreas
T1  - Analytic method for material aging and quality analyzing to forecast long time stability of plastic micro heliostat components
T2  - AIP Conference Proceedings
Y1  - 2017
U6  - https://doi.org/10.1063/1.4984388
VL  - 1850
IS  - 1
SP  - 030045-1
EP  - 030045-8
ER  - 
TY  - CHAP
A1  - Aringhoff, R.
A1  - Geyer, Michael
A1  - Herrmann, Ulf
A1  - Kistner, Rainer
A1  - Nava, P.
A1  - Osuna, R.
ED  - Steinfeld, Aldo
T1  - AndaSol : 50MW Solar Plants with 9 Hour Storage for Southern Spain
T2  - Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich
Y1  - 2002
SN  - 3-9521409-3-7
SP  - 37
EP  - 42
PB  - Paul Scherrer Inst.
CY  - Villingen
ER  - 
TY  - CHAP
A1  - Voß, Alfred
A1  - Bundschuh, Vinzenz
A1  - Meliß, Michael
A1  - Oesterwind, Dieter
T1  - Andere Primärenergiequellen
T2  - Nichtkonventionelle Energiesysteme : Vorträge der VDI-Tagung Düsseldorf 1974. - (VDI-Bericht. 224.)
Y1  - 1974
SN  - 3-18-090224-8
SP  - 117
EP  - 125
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Razen, Manfred
A1  - Späte, Frank
A1  - Meliß, Michael
A1  - Breuer, Maria
A1  - Hubrich, Jörg
A1  - Rischert, Christa
T1  - Aus-, Fort- und Weiterbildung am Solar-Institut Jülich
T2  - Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule Köln / 11. Internationales Sonnenforum
Y1  - 1998
SP  - 1071
EP  - 1078
PB  - Solar Promotion
CY  - München
ER  - 
TY  - CHAP
A1  - Dümmler, Andreas
A1  - Oetringer, Kerstin
A1  - Göttsche, Joachim
T1  - Auslegungstool zur energieeffizienten Kühlung von Gebäuden
T2  - DKV-Tagung 2020, AA IV
N2  - Thematisch widmet sich das Projekt Coolplan- AIR der Fortentwicklung und Feldvalidierung eines Berechnungs-  und Auslegungstools zur energieeffizienten Kühlung von Gebäuden mit luftgestützten Systemen. Neben dem Aufbau und der Weiterentwicklung von Simulationsmodellen erfolgen Vermessungen der Gesamtsysteme anhand von Praxisanlagen im Feld. Der Schwerpunkt des Projekts liegt auf der Vermessung, Simulation und Integration rein luftgestützter Kühltechnologien. Im Bereich der Kälteerzeugung wurden Luft‐ Luft‐ Wärmepumpen, Anlagen zur adiabaten Kühlung bzw. offene Kühltürme und VRF‐ Multisplit‐ Systeme (Variable Refrigerant Flow) im Feld bzw. auf dem Teststand der HSD vermessen. Die Komponentenmodelle werden in die Matlab/Simulink‐ Toolbox CARNOT integriert und anschließend auf Basis der zuvor erhaltenen Messdaten validiert.
Einerseits erlauben die Messungen das Betriebsverhalten von Anlagenkomponenten zu analysieren. Andererseits soll mit der Vermessung im Feld geprüft werden, inwieweit die Simulationsmodelle, welche im Vorgängerprojekt aus Prüfstandmessungen entwickelt wurden, auch für größere Geräteleistungen Gültigkeit besitzen. Die entwickelten und implementierten Systeme, bestehend aus verschiedensten Anlagenmodellen und Regelungskomponenten, werden geprüft und dahingehend qualifiziert, dass sie in Standard-  Auslegungstools zuverlässig verwendet werden können.
Zusätzlich wird ein energetisches Monitoring eines Hörsaalgebäudes am Campus Jülich durchgeführt, das u. a. zur Validierung der Kühllastberechnungen in gängigen Simulationsmodelle genutzt werden kann.
Y1  - 2020
N1  - Deutsche Kälte- und Klimatagung, 19-20 November 2020, online
SP  - 1109
ER  - 
TY  - CHAP
A1  - Frantz, Cathy
A1  - Binder, Matthias
A1  - Busch, Konrad
A1  - Ebert, Miriam
A1  - Heinrich, Andreas
A1  - Kaczmarkiewicz, Nadine
A1  - Schlögl-Knothe, Bärbel
A1  - Kunze, Tobias
A1  - Schuhbauer, Christian
A1  - Stetka, Markus
A1  - Schwager, Christian
A1  - Spiegel, Michael
A1  - Teixeira Boura, Cristiano José
A1  - Bauer, Thomas
A1  - Bonk, Alexander
A1  - Eisen, Stefan
A1  - Funck, Bernhard
T1  - Basic Engineering of a High Performance Molten Salt Tower Receiver System
T2  - AIP Conference Proceedings
N2  - The production of dispatchable renewable energy will be one of the most important key factors of the future energy supply. Concentrated solar power (CSP) plants operated with molten salt as heat transfer and storage media are one opportunity to meet this challenge. Due to the high concentration factor of the solar tower technology the maximum process temperature can be further increased which ultimately decreases the levelized costs of electricity of the technology (LCOE). The development of an improved tubular molten salt receiver for the next generation of molten salt solar tower plants is the aim of this work. The receiver is designed for a receiver outlet temperature up to 600 °C. Together with a complete molten salt system, the receiver will be integrated into the Multi-Focus-Tower (MFT) in Jülich (Germany). The paper describes the basic engineering of the receiver, the molten salt tower system and a laboratory corrosion setup.
Y1  - 2020
U6  - https://doi.org/10.1063/5.0085895
N1  - SOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems, 28 September – 2 October 2020, Freiburg, Germany
SP  - 1
EP  - 10
ER  -