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Solar Thermal Power Plants
Solar power for more sustainable pasta production
In the HiFlex project, an international team is working on a system for sustainable energy supply for Barilla, one of the leading pasta producers worldwide. The system, planned and built by experts from the scientific and the industrial field, will enable Barilla to produce and dry pasta more sustainably. With this pilot system, the HiFlex project partners want to demonstrate that they can produce electricity and heat from renewable resources 24/7 and provide them reliably and as needed for the production process. Barilla can thus use environmentally friendly solar energy for its pasta production and reduce the consumption of fossil fuels.
Implementation of the Initiative for Global Leadership in Solar Thermal Electricity
A major challenge in the fight against climate change is to decarbonise energy systems. A very important measure for this is to obtain electricity and heat from renewable sources such as the sun. The EU-funded Horizon STE project aims to support countries in Europe with the introduction of technologies for solar thermal power generation (STE). One focus is on improving the procurement of renewable energy resources and increasing public funding for F&I projects.
Optimising the operation of liquid salt-based parabolic trough systems
The MSOpera project aims to further advance the market launch of liquid salt parabolic trough systems. Based on the basic functional verification with a low melting salt in the HPS 2 project, the project partners of MSOpera will operate the EMSP (Évora Molten Salt Platform) test facility of the University of Évora/Portugal with solar salt at 550 to 565°C. Together with various optimisation measures at the collector and process level, the project is intended to lay the foundation for commercial projects.
Power-to-heat technology with salt storage for usage in industry and PV-CSP-Hybridpowerplants
The industrial sector uses around 30% of Germany's final energy requirements. About 66% of this is provided in the form of heat for chemical or thermal processes, with large amounts of unused waste heat often occurring at low temperatures of up to 150 ° C, depending on the process. As part of the SWS project, concepts for the use of this waste heat are being developed.
Solving Water Issues for CSP Plants
The overall purpose of the SOLWARIS project is to upscale, implement and demonstrate cost-effective technologies and strategies that bring about a significant reduction of water consumption in CSP plants while maintaining high energetic performance of electrical power production. The approach proposed in SOLWARIS tackles all segments of water consumption in a CSP plant by setting ambitious water saving goals.
Molten salt as heat transfer fluid in parabolic trough power plants
An international consortium led by the DLR Institute of Solar Research, will build and operate a solar thermal molten salt parabolic trough test facility in Évora (Portugal). As of June 2019 these companies and research institutions will test molten salt as heat transfer fluid under realistic conditions.
Gtom – Tomograph for buildings
Measurement system for contactless energetic analyses of building envelopes
In Gtom scientists from four DLR institutes collaborate in developing methods to examine the energetic properties of building envelopes. These techniques are based on remote sensing technology and may be applied in the future to identify weaknesses in building envelopes and determine the sources of heat losses.
SITEF & SIMON
Silicone oils as heat transfer media
Solar thermal power plants play a very important role in the energy transition in sunny regions of the world, as in combination with a heat storage system they can also deliver electricity after sunset. The efficiency of solar parabolic trough power plants is largely determined by the efficiency of the solar field. Better utilization of the incident solar radiation is possible, for example with a higher maximum temperature of the heat transfer oil, which circulates in the absorber tubes and absorbs the solar radiation. A consortium of research and industry led by the German Aerospace Center (DLR) is currently demonstrating the suitability of silicone-based heat transfer oils as part of various funding projects.
Solar Energy Meteorology
Analysis and Prediction of the spatial variability of PV generation in distribution grids
The VariDist project creates a high-resolution radiation forecast using a large number of cloud cameras. This forecast enables planning feed-ins from large photovoltaic power plants and roof-top systems and thus helps optimize distribution grid control.
Solar resources and forecasts for integration of solar energy from PV Parks
SOLREV examines and evaluates models for the provision of data and forecasts about solar radiation with a focus on PV electricity. Such models control the feeding of solar energy into the power grid and thus ensure the long-term yield security of solar power plants. Estimating the yields of large solar power plants with high investment costs requires long-term solar radiation data. These are the basis for reliable income models that reduce the entrepreneurial risk and strengthen the investor's willingness to provide capital.
Solutions for Renewable Energy Forecasting
In the Smart4Res research project, researchers from 12 institutes, universities and companies are working on intelligent solutions for integrating renewable energies into the power grid. The aim of the project is to be able to predict the amount of electricity to be expected from fluctuating renewable energy sources more reliably. More precise forecasts make it possible to optimize network operation and participation in electricity markets. Such forecasts are becoming more and more important as the share of green energy in the general power supply will continue to rise in the coming years.
German-Moroccan Extinction Project
In concentrated solar tower plants, the radiation which is reflected by the heliostat field is partially lost on its way to the central receiver due to atmospheric extinction (irradiance attenuation). The novelty of the GeMoExt project is the further enhancement of a correction method for atmospheric extinction measurements for CSP plant design and yield prediction so that it will be ready for the market. Therefore, electricity production costs for CSP plants will be reduced.
Solar Chemical Engineering
Synergy effects in the solar production of ammonia and fertilizers
In the SESAM project, the process of solar fertilizer production is to be examined for the first time as a whole up to the finished fertilizer product.
Particles in high temperature solar applications
In the HOTPORT project, processes and components are developed and tested to enable the use of particles as a heat transfer medium or reaction partner in the field of concentrating solar technology. This is about the transport and flow control of particles with little heat loss at temperatures above 1000 ° C. For this purpose, the use of innovative materials is investigated, among other things.
Roadmaps for the production of sustainable synthetic fuels in the MENA (*) area for the decarbonisation of traffic in Germany
MENA-Fuels aims to show the strengths and weaknesses, opportunities and obstacles as well as the development potential of relevant synthetic fuels. The fuels rated as promising are analyzed with a view to their embedding in and repercussions on the energy system. * MENA: Middle-East and North Africa (North Africa and Middle East)
From sunlight to fuel
As part of the “Energy Transition in Traffic” research initiative, the “SolarFuels” project is working on the extent to which the production and use of fuels from solar thermal production processes as drop-in fuels can contribute to a rapid reduction in fossil CO2 emissions from transport. The entire chain from solar fuel production from water and CO2 to the consumer side, the engine combustion process, is examined and examined.
DLR interdisciplinary project
The growing share of renewable energies in Germany not only requires additional large capacities in the area of electricity and supply networks, but also innovative solutions for energy storage and transport. Synfuels are expected to play a key role as energy carrier for the transport sector and as energy buffer for the integration of large amounts of renewable energy into the grid. In Future Fuels, the most promising alternative fuels based on solar energy (solar fuels) will be identified and analysed for their technical and environmental performance.
Calcium oxide looping through Solar energy
Calcium oxid looping means the transformation of lime (CaO) into limestone (CaCO
) and vice versa. It is a conventional, energy intensive process for the sequestration of carbon dioxide (CO
) from industrial exhaust gases. CALyPSOL tries to operate this process with solar energy. A reactor for the calcination (the endothermic transformation of CaCO
into CaO und CO
) will be developed for operation with concentrated solar radiation. The complete process will be demonstrated in the High-Flux solar furnace of DLR in Köln-Porz.
On-demand solar power production using sulphur storage technology
In cooperation with the EU-project PEGASUS, a sulphur storage cycle is developed, which enables solar electricity production regardless of daily and seasonal fluctuation of solar radiation. This process is based on a storage system in which sulphur is produced during solar operation. This sulphur can then be used for continuous power generation.
Development and qualification of solar receivers based on transparent ceramics for solar chemical processes
One of the central challenges in the design of solar receivers ist he availability of suitable materials for construction. This is especially applicable to solar receivers for chemical processes. For instance the evaporation and decomposition of sulfuric acid, where chemical stability is demanding. In the Project TRAKSOL, the application of transparent ceramics in solar receivers is investigated and demonstrated in lab scale. Through this, a relevant improvement in receiver efficiency is expected.
Thermochemical storage based on redox reactions for CSP applications - from the material to the process
The RedoxStorE project brings together the expertise of three DLR institutes to develop and test a pilot scale thermochemical storage, based on redox material. The material, in shape of granules, undergoes a cyclic reversible reaction to alternatively store and release heat. The heat is stored through the on-sun endothermic reaction inside a directly irradiated rotary kiln while it is released in a vertical moving bed reactor.
Renewable power generation by a solar-driven sulphur storage cycle
Effective and economic long-term storage of solar energy is crucial in order to fully replace fossil power plants by renewable sources. In this context, the European project PEGASUS investigates a novel power cycle for renewable electricity production combining a concentrating solar power (CSP) plant with a sulphur storage system for 24 hours baseload operation.
High temperature solar-heated reactors for industrial production of reactive particulates
The main objective of the SOLPART project is to develop, at a pilot scale, a high temperature (800-1000°C) 24h/day solar process suitable for particle treatment in energy intensive non-metallic minerals’ industries. One of the main reactions is the calcination, in which CO
is released on the one hand due to the reaction and on the other hand due to the usage of fossil fuels. The goal of the SOLPART project is to reduce CO
release, by replacing fossil fuel with solar energy.
Automation of thermochemical processes to de-crease hydrogen generation costs
Solar thermochemical water-splitting via redox-cycles is a promising path for the generation of renewable fuels. ASTOR tries to set-up the first automatic control of a solar-thermochemical pro-cess. Hence, complex control algorithms based on a detailed process models have to be developed. Further objective is the increase of the total efficiency of the process by improvement of heat management and waste heat recovery.
From sunlight directly to fuel
SUN-to-LIQUID aims at developing a solar thermochemical technology as a highly promising fuel path at large scale and competitive costs. Solar radiation is concentrated by a heliostat field and efficiently absorbed in a solar reactor that thermochemically converts H
O and CO
to syngas which is subsequently processed to Fischer-Tropsch hydro-carbon fuels. Solar-to-syngas energy conversion efficiencies exceeding 30% can potentially be realized thanks to favourable thermodynamics at high temperature and utilization of the full solar spectrum.
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