TY - CHAP A1 - Göttsche, Joachim A1 - Korn, Michael A1 - Amato, Alexandre T1 - The Passivhaus concept for the Arabian Peninsula – An energetic-economical evaluation considering the thermal comfort T2 - QScience Proceedings: Vol 2015 N2 - The Passivhaus building standard is a concept developed for the realization of energy-efficient and economical buildings with a simultaneous high utilization comfort under European climate conditions. Major elements of the Passivhaus concept are a high thermal insulation of the external walls, the use of heat and/or solar shading glazing as well as an airtight building envelope in combination with energy-efficient technical building installations and heating or cooling generators, such as an efficient energy-recovery in the building air-conditioning. The objective of this research project is the inquiry to determine the parameters or constraints under which the Passivhaus concept can be implemented under the arid climate conditions in the Arabian Peninsula to achieve an energy-efficient and economical building with high utilization comfort. In cooperation between the Qatar Green Building Council (QGBC), Barwa Real Estate (BRE) and Kahramaa the first Passivhaus was constructed in Qatar and on the Arabian Peninsula in 2013. The Solar-Institut Jülich of Aachen University of Applied Science supports the Qatar Green Building Council with a dynamic building and equipment simulation of the Passivhaus and the neighbouring reference building. This includes simulation studies with different component configurations for the building envelope and different control strategies for heating or cooling systems as well as the air conditioning of buildings to find an energetic-economical optimum. Part of these analyses is the evaluation of the energy efficiency of the used energy recovery system in the Passivhaus air-conditioning and identification of possible energy-saving effects by the use of a bypass function integrated in the heat exchanger. In this way it is expected that on an annual basis the complete electricity demand of the building can be covered by the roof-integrated PV generator. Y1 - 2015 U6 - http://dx.doi.org/10.5339/qproc.2015.qgbc.38 N1 - 10.5339/qproc.2015.qgbc.38 = abstract - Qatar Green Building Conference 2015 - The Vision, 38. ER - TY - JOUR A1 - Damm, Marc André A1 - Sauerborn, Markus A1 - Fend, Thomas A1 - Herrmann, Ulf T1 - Optimisation of a urea selective catalytic reduction system with a coated ceramic mixing element JF - Journal of ceramic science and technology Y1 - 2017 SN - 2190-9385 (Print) U6 - http://dx.doi.org/10.4416/JCST2016-00056 SN - 2190-9385 (Online) VL - 8 IS - 1 SP - 19 EP - 24 PB - Göller CY - Baden-Baden ER - TY - JOUR A1 - Alexopoulos, Spiros A1 - Hoffschmidt, Bernhard T1 - Advances in solar tower technology JF - Wiley interdisciplinary reviews : Energy and Environment : WIREs Y1 - 2017 U6 - http://dx.doi.org/10.1002/wene.217 SN - 2041-840X VL - 6 IS - 1 SP - 1 EP - 19 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Kearney, D. A1 - Herrmann, Ulf A1 - Nava, P. A1 - Kelly, B. A1 - Mahoney, R. A1 - Pacheco, J. A1 - Cable, R. A1 - Potrovitza, N. A1 - Blake, D. A1 - Price, H. T1 - Assessment of a Molten Salt Heat Transfer Fluid in a Parabolic Trough Solar Field JF - Journal of Solar Energy Engineering Y1 - 2003 U6 - http://dx.doi.org/10.1115/1.1565087 SN - 1528-8986 VL - 125 IS - 2 SP - 170 EP - 176 ER - TY - CHAP A1 - Anthrakidis, Anette A1 - Herrmann, Ulf A1 - Schorn, Christian A1 - Schwarzer, Klemens A1 - Wedding, Philipp A1 - Weis, Fabian T1 - Development and Testing of a Novel Method for the Determination of the Efficiency of Concentrating Solar Thermal Collectors T2 - Conference Proceedings Solar World Congress 2015, Daegu, Korea, 08 – 12 November 2015 Y1 - 2015 ER - TY - CHAP A1 - Teixeira Boura, Cristiano José A1 - Niederwestberg, Stefan A1 - McLeod, Jacqueline A1 - Herrmann, Ulf A1 - Hoffschmidt, Bernhard T1 - Development of heat exchanger for high temperature energy storage with bulk materials T2 - AIP Conference Proceedings Y1 - 2016 U6 - http://dx.doi.org/10.1063/1.4949106 VL - 1734 IS - 1 SP - 050008-1 EP - 050008-7 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 - http://dx.doi.org/10.1063/1.4984388 VL - 1850 IS - 1 SP - 030045-1 EP - 030045-8 ER - TY - CHAP A1 - Herrmann, Ulf A1 - Kearney, D. A1 - Röger, M. A1 - Prahl, C. T1 - System performance measurements T2 - The Performance of Concentrated Solar Power (CSP) Systems : Modelling, Measurement and Assessment N2 - This chapter introduces performance and acceptance testing and describes state-of-the-art tools, methods, and instruments to assess the plant performance or realize plant acceptance testing. The status of the development of standards for performance assessment is given. KW - Performance measurement KW - Acceptance tests KW - Plant efficiency Y1 - 2017 SN - 978-0-08-100448-7 U6 - http://dx.doi.org/https://doi.org/10.1016/B978-0-08-100447-0.00005-5 SP - 115 EP - 165 PB - Woodhead Publishing CY - Duxford ER - TY - CHAP A1 - Rendon, Carlos A1 - Dieckmann, Simon A1 - Weidle, Mathias A1 - Dersch, Jürgen A1 - Teixeira Boura, Cristiano José A1 - Polklas, Thomas A1 - Kuschel, Marcus A1 - Herrmann, Ulf T1 - Retrofitting of existing parabolic trough collector power plants with molten salt tower systems T2 - AIP Conference Proceedings Y1 - 2018 U6 - http://dx.doi.org/10.1063/1.5067030 VL - 2033 IS - 1 SP - 030014-1 EP - 030014-8 ER - TY - JOUR A1 - Puppe, Michael A1 - Giuliano, Stefano A1 - Frantz, Cathy A1 - Uhlig, Ralf A1 - Schumacher, Ralph A1 - Ibraheem, Wagdi A1 - Schmalz, Stefan A1 - Waldmann, Barbara A1 - Guder, Christoph A1 - Peter, Dennis A1 - Schwager, Christian A1 - Teixeira Boura, Cristiano José A1 - Alexopoulos, Spiros A1 - Spiegel, Michael A1 - Wortmann, Jürgen A1 - Hinrichs, Matthias A1 - Engelhard, Manfred A1 - Aust, Michael T1 - Techno-economic optimization of molten salt solar tower plants JF - AIP Conference Proceedings art.no. 040033 N2 - In this paper the results of a techno-economic analysis of improved and optimized molten salt solar tower plants (MSSTP plants) are presented. The potential improvements that were analyzed include different receiver designs, different designs of the HTF-system and plant control, increased molten salt temperatures (up to 640°C) and multi-tower systems. Detailed technological and economic models of the solar field, solar receiver and high temperature fluid system (HTF-system) were developed and used to find potential improvements compared to a reference plant based on Solar Two technology and up-to-date cost estimations. The annual yield model calculates the annual outputs and the LCOE of all variants. An improved external tubular receiver and improved HTF-system achieves a significant decrease of LCOE compared to the reference. This is caused by lower receiver cost as well as improvements of the HTF-system and plant operation strategy, significantly reducing the plant own consumption. A novel star receiver shows potential for further cost decrease. The cavity receiver concepts result in higher LCOE due to their high investment cost, despite achieving higher efficiencies. Increased molten salt temperatures seem possible with an adapted, closed loop HTF-system and achieve comparable results to the original improved system (with 565°C) under the given boundary conditions. In this analysis all multi tower systems show lower economic viability compared to single tower systems, caused by high additional cost for piping connections and higher cost of the receivers. REFERENCES Y1 - 2019 U6 - http://dx.doi.org/10.1063/1.5067069 VL - 2033 IS - Issue 1 PB - AIP Publishing CY - Melville, NY ER -