HANNOVER MESSE 2018,
23 - 27 April
SCCER Heat and Electricity Storage
Advanced Adiabatic Compressed Air Storage(AA-CAES)Plants based on AA-CAES use electricity duringperiods of excess power generation to compressair. The heat contained in the compressed air isstored in a Thermal Energy Storage, and the highpressure cooled air is stored confined in a hermeticallysealed reservoir. To generate electricity duringperiods of high demand, the air is releasedfrom the reservoir, heated from the storage, and isexpanded through a turbine-generator setup.The efficiency of a well designed AA-CAES plantis projected to reach about 75 % (close to the efficiencyof pumped hydro storage).The heat storage concept for AA-CAES withtemperature and pressure ranges of about 500-600°C and 10-60 bars are being considered usinga combination of encapsulated phase-change materials(PCM) with a packed bed of rocks.High-temperature process heat: The storage ofthermal energy at temperatures above 400°C is ofinterest to process-industry applications such asglass recycling, cement production, and metallurgicalprocessing. Accordingly, research is focusedon latent and sensible heat storage for these temperatureranges to provide solutions for economicand compact storage of fluctuating sources ofhigh-temperature heat and/or electricity.Building Applications: Space heating, hot watergeneration:The heating and cooling demands of buildingsnecessitate storage of thermal energy for winterand summer. Sensible, latent, and sorption storagetechnologies can be used to bridge the timeshift between the availability of energy and user demand. The application temperaturerange for heating, ventilation, and airconditioning in buildings will be covered by thesestorage technologies in the temperature range ofabout -10°C to 250°C.One example for residential space and waterheating, the dilution energy of concentrated lye isinvestigated (illustrated in the figure below), herethe heat exchanger for enrichment of the lye is infocus of the development.
Integrated Energy Plaza
The assessment of future development scenario in terms of energy storage systems as part of the energy network (power/heat generation, distribution
and consumption) ...
With the aim to reduce the CO2 footprint, as proposed and enforced by policy makers in order to reduce the anthropogenic effects on the climate,
CO2 hydrogenation ...
H2 production by electrolysis is an especially important issue since this is the first step in the conversion of electricity to synthetic fuels and realizes
a closed ...
In order to bring the technology forward, three fundamental research directions will be pursued with strong synergies between them, accompanied by two applied projects. ...