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Particle tower technology applied to metallurgic plants and peak-time boosting of steam power plants
Conference paper

Particle tower technology applied to metallurgic plants and peak-time boosting of steam power plants

L. Amsbeck, R. Buck and T. Prosin
SOLARPACES 2015: International Conference on Concentrating Solar Power and Chemical Energy Systems (Cape Town, South Africa, 13/10/2015–16/10/2015)
2016
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Abstract

Using solar tower technology with ceramic particles as heat transfer and storage medium to preheat scrap for induction furnaces in foundries provides solar generated heat to save electricity. With such a system an unsubsidized payback time of only 4 years is achieved for a 70000t/a foundry in Brazil. The same system can be also used for heat treatment of metals. If electricity is used to heat inert atmospheres a favorable economic performance is also achievable for the particle system. The storage in a particle system enables solar boosting to be restricted to only peak times, enabling an interesting business case opportunity.

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