Siemens
installs heat recovery pilot plant at Stahlwerk Thüringen GmbH – molten salt
stores energy from the exhaust gases of the electric arc
furnace
A
heat recovery pilot plant installed by Siemens Metals Technologies in the
electric steel plant of Stahlwerk Thüringen GmbH in Unterwellenborn (Germany) is
now in operation since April 2012. The plant uses molten salt as heat transfer
medium, and is connected to the existing exhaust gas system of the electric arc
furnace. The objective of the pilot project is to validate possible materials
for use under high temperatures, and to investigate the conditions required to
achieve the highest possible energy recovery efficiency. The duration for
operating the pilot plant is preliminary defined for one
year.
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