High-temp storage for process heat
Liquid metal stores heat above 500 °C efficiently and sustainably.
Exhibitors
Location
Hall 11, Stand B06
Description
Many branches of industry, such as the chemical, steel and cement industries, require high-temperature process heat of 500 to over 1000 degrees Celsius. Until now, these temperatures have mostly been generated by fossil energy sources. However, the provision of heat on demand through the use of electricity from renewable energy sources in combination with heat storage systems offers opportunities for sustainable industrial heat generation. At the same time, the use and storage of waste heat can be integrated. A liquid metal heat storage developed at the Karlsruhe Liquid Metal Laboratory (KALLA) at the Institute for Thermal Energy Technology and Safety (ITES) is a promising alternative for temperatures above 500 degrees Celsius. Thanks to its special material properties, liquid metal offers up to 100 times greater heat transfer than gas. The newly developed heat storage system is designed in such a way that the liquid metal circulates in a storage container filled with ceramic beads, where it releases and absorbs the heat. An initial test system was dimensioned for a heat capacity of 100 kilowatt hours. With the liquid metal heat storage, it is possible to store excess energy in the high-temperature range and make it available for further use as required. The technology is not only very efficient at transferring heat in the storage tank, but also at transporting heat from a heat source to a high-temperature process.
To Product PageContact
Karlsruher Institut für Technologie (KIT)
- Kaiserstr. 12
- 76131 Karlsruhe
- Germany
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