A5071919153- Solar Thermal and Photovoltaic Systems
- Photovoltaic System Optimization Techniques
- Phase Change Materials Research
- Solar Radiation and Photovoltaics
- Adsorption and Cooling Systems
- Solar-Powered Water Purification Methods
- Health and Medical Studies
- Heat Transfer and Optimization
- Social and Demographic Issues in Germany
- Medical Practices and Rehabilitation
- Photovoltaic Systems and Sustainability
- Hybrid Renewable Energy Systems
- Medical and Health Sciences Research
- Physics and Engineering Research Articles
- Heat Transfer and Boiling Studies
- Microgrid Control and Optimization
- Energy and Environment Impacts
- Power Systems and Renewable Energy
- Integrated Energy Systems Optimization
- Advanced Power Generation Technologies
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Solar Energy Systems and Technologies
- solar cell performance optimization
- Consumer behavior in food and health
- Smart Grid Energy Management
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2007-2018
University of Stuttgart
2003-2013
University of Würzburg
2003
Institut für Mikroelektronik Stuttgart
2001
Forschungszentrum Jülich
1992
The Spanish Royal Decree 661/2007 for the regulation of renewable energy allows operators power plants to participate directly on electricity market instead reverting flat-rate prices. premium tariff option motivates increasingly act like managers conventional plants, selling at liberalized market. Just a normal participant, operator places bids in advance day-ahead and is obliged fulfill them. Thus, there need be able provide predictable dispatchable profitable tariff. This legal setting...
Parabolic trough power plants are currently the most commercially applied systems for CSP generation. To improve their cost-effectiveness, one focus of industry and research is development processes with other heat transfer fluids than used synthetic oil. One option utilization water/steam in solar field, so-called direct steam generation (DSG). Several previous studies promoted economic potential DSG technology [1–3]. Analyses’ results showed that live parameters up to 500°C 120 bars...
The DISS (DIrect Solar Steam) project is a complete R+TD program aimed at developing new generation of solar thermal power plants with direct steam (DSG) in the absorber tubes parabolic trough collectors. During first phase (1996-1998), life-size test facility was implemented Plataforma de Almerı´a (PSA) to investigate basic DSG processes under real conditions and evaluate unanswered technical questions concerning this technology. This paper updates status explains O&M-related experience...
The direct steam generation (DSG) is an attractive option regarding the economic improvement of parabolic trough technology for solar thermal electricity in multi megawatt range. According to Price, H., Lu¨pfert, E., Kearney, D., Zarza, Cohen, G., Gee, R. Mahoney, R., 2002, “Advances Parabolic Trough Solar Power Technology,” J. Sol. Energy Eng., 124 and DISS Phase II-Final Project Report, EU No. JOR3-CT 980277 a 10% reduction LEC expected compared conventional SEGS like power plants....
For the future market potential of parabolic trough power plants with direct steam generation (DSG), it is beneficial to integrate a thermal storage system. Heat media based on phase change materials offer heat transfer at constant temperatures needed for evaporation process. Different options plant layout are presented and discussed. The interactions between three subsystems—solar field, block, storage—are analyzed, boundary conditions arising from system identified. Compared without number...
This article presents the latest experimental results of European DISS (DIrect Solar Steam) project. The experiments are subdivided into steady state and transient tests. goal tests is investigation thermohydraulic phenomena occurring two phase flow, whereas needed for controller design. compared to simulation studies. Implications plant operation will be discussed.
The direct steam generation (DSG) in parabolic trough collectors is a promising option to improve the mature solar thermal power plant technology of energy generating systems (SEGS) California. According previous studies [Langenkamp, 1998, “Revised LEC Projections and Discussion Different DSG Benefits,” Technical Report No. DISS-SC-QA-02, Almeria, Spain; Price, et al., 2002, “Advances Parabolic Trough Solar Power Technology,” ASME J. Sol. Energy Eng., 124(2), pp. 109–125; Zarza, E., “DISS...
One possibility to increase the efficiency and thus economic viability of solar thermal power plants is their operating temperature. This approach demands substitution state-of-the-art heat transfer fluid (HTF) that limits temperature roughly 400 °C. Promising fluids for future applications are molten salts or water/steam. If water/steam used as HTF, feed-water from block fed field (SF) directly evaporated superheated. process called direct steam generation (DSG). A recent study [1] has...
Yield analysis is a crucial task during project deployment of solar thermal power plants. Currently, many different modeling approaches and computer tools for yield are used. Within the SolarPACES guiSmo, aiming at development guidelines annual prediction plants, relevant effects steady-state plant sub-systems have been identified [1]. The target ongoing phase general definitions all effects. Furthermore, suitable to be described unambiguously. For every effect, impact on predicted...