Refine
Year of publication
Institute
- Solar-Institut Jülich (161) (remove)
Has Fulltext
- no (161) (remove)
Language
- English (161) (remove)
Document Type
- Conference Proceeding (108)
- Article (41)
- Part of a Book (11)
- Book (1)
Keywords
- Energy storage (4)
- Power plants (4)
- Associated liquids (3)
- Concentrated solar power (3)
- Hybrid energy system (3)
- Central receiver power plant (2)
- Central receiver system (2)
- Concentrated solar collector (2)
- Concentrated systems (2)
- Electricity generation (2)
- Gas turbine (2)
- Solar concentration (2)
- Solar thermal technologies (2)
- building information modelling (2)
- 20 fossil-fueled power plants (1)
- 3D printing (1)
- Acceptance tests (1)
- BIM (1)
- Camera system (1)
- Ceramics (1)
- Cloud passages (1)
- Concentrating solar power (1)
- Control optimization (1)
- DNI forecast (1)
- DNI forecasting (1)
- Decision theory (1)
- Direct normal irradiance forecast (1)
- District data model (1)
- District energy planning platform (1)
- Dynamic simulation (1)
- Electrochemistry (1)
- Energy system (1)
- Energy system planning (1)
- Freshmen (1)
- Fresnel collector (1)
- Fresnel power plant (1)
- Global change (1)
- HVAC (1)
- Heliostat Field Calibration (1)
- Heliostats (1)
- Hybridization (1)
- Measuring instruments (1)
- Mixed integer linear programming (MILP) (1)
- Modelica (1)
- Molten salt receiver (1)
- Molten salt receiver system (1)
- Molten salt receiver system, (1)
- Molten salt solar tower (1)
- Nowcasting (1)
- Optical and thermal analysis (1)
- PTC (1)
- Parabolic trough collector (1)
- Performance measurement (1)
- Photovoltaics (1)
- Plant efficiency (1)
- Power conversion systems (1)
- Process prediction (1)
- Quadrocopter (1)
- Renewable energy (1)
- Renewable energy integration (1)
- Smart Building Engineering (1)
- Solar dish (1)
- Solar irradiance (1)
- Star design (1)
- Thermal Energy Storage (1)
- Time-series aggregation (1)
- Transient flux distribution (1)
- Two-phase modelling (1)
- Typical periods (1)
- UAV (1)
- Uncertainty analysis (1)
- Unmanned aerial vehicle (1)
- borefields (1)
- building energy modelling (1)
- building energy simulation (1)
- ceramics (1)
- concentrating collector (1)
- construction (1)
- digitalization (1)
- dissemination (1)
- emote practical training (1)
- energy (1)
- energy transition (1)
- filtration (1)
- food production (1)
- gas flow (1)
- geothermal (1)
- heat demand (1)
- heat transfer coefficient (1)
- hot gas cleanup (1)
- lockdown conditions (1)
- open educational resources (1)
- point-focussing system (1)
- prefabrication (1)
- raytracing (1)
- remote teamwork (1)
- renewable energies (1)
- roleplay (1)
- sizing (1)
- small and medium scaled companies (1)
- smart building engineering (1)
- smart engineering (1)
- solar process heat (1)
- sustainability (1)
- urban farming (1)
- virtual reality (1)
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.
An approach to automatically generate a dynamic energy simulation model in Modelica for a single existing building is presented. It aims at collecting data about the status quo in the preparation of energy retrofits with low effort and costs. The proposed method starts from a polygon model of the outer building envelope obtained from photogrammetrically generated point clouds. The open-source tools TEASER and AixLib are used for data enrichment and model generation. A case study was conducted on a single-family house. The resulting model can accurately reproduce the internal air temperatures during synthetical heating up and cooling down. Modelled and measured whole building heat transfer coefficients (HTC) agree within a 12% range. A sensitivity analysis emphasises the importance of accurate window characterisations and justifies the use of a very simplified interior geometry. Uncertainties arising from the use of archetype U-values are estimated by comparing different typologies, with best- and worst-case estimates showing differences in pre-retrofit heat demand of about ±20% to the average; however, as the assumptions made are permitted by some national standards, the method is already close to practical applicability and opens up a path to quickly estimate possible financial and energy savings after refurbishment.
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.