pebble-heater technology - Engineering & Consulting

Pebble-heater - Main Features
  • bulk material consisting of spherical pebbles
  • pebble-bed fixed between hot and cold grid
  • radial fluid flow
  • very high recuperation efficiency up to 98%
  • ability to operate at high gas temperatures
  • stable outlet temperature of hot blast
  • very low exergy loss

PEBBLE HEATER

The new regenerative heat exchanger is referred to as "Pebble-Heater" - a name already known in technical practice. It is filled with bulk material consisting of spherical pebbles and may operate at high temperatures to heat and cool gaseous media. The differences towards the state-of-the-art start with the flow direction: the fluid flows radially through the pebble-bed which is fixed between two concentric, permeable cylinders, referred to as hot and cold grid.

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CUSTOMERS

Customers are SMEs as well as big corporations and public authorities, like:
  • LKAB - Sweden
  • SIEMENS-VAI (now PRIMETALS)
  • Küttner GmbH
  • Saarstahl AG
  • KRONES AG
  • AG der Dillinger Hüttenwerke
  • Outokumpu Technology GmbH
  • BioFlame Ltd. - United Kingdom
  • Ministry for Energy and Mining - Serbia
  • Ministry of Education - Greece
  • ProTerra Inc. - USA
  • Paul Würth Engineering & Refractories GmbH
  • KIRKA Boiler Factory - Serbia
  • RUDIS LLC - Slovenia
  • KIV LLC - Slovenia





ARTICLES

  • EFEA 2016: High Temperature Energy Storage based on Hot Air Turbine and Pebble-Heater Technology
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  • IEEP 2015: "Energiewende" - German energy transition - Integration of renewable electricity
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  • "SIEMENS Jet Process - Press release"
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  • "Pebble-Heater technology in metalurgy"
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  • "Pebble-heater twins with fluid dynamic valve - an efficient possibility for high combustion air preheating"
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  • "Decentralized biomass power plant based on pebble-heater technology and hot air turbine (SiPeb©)"
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  • "Innovative biomass power plant based on pebble-heater technology and hot air turbine"
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  • "BIO FUELS: Second generation"
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  • "BIOMASS CHP BASED ON GAS TURBINE PROCESSES"
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PATENTS

  • Stromspeicherung ├╝ber thermische Speicher und Luftturbine
  • Storing energy using a thermal storage unit and an air turbine
  • Verfahren und Vorrichtung zur Umwandlung von thermischer Energie in mechanische Arbeit
  • Method for Converting Thermal Energy into Mechanical Work - decentrilized biomass CHP
  • Process for the Operation of a Regenerator and Regenerator

    LIST OF GRANTED
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    LIST OF PATENT
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LAST PROJECT

With the Jet Process, SIEMENS Metals Technologies offers a solution for operating converters with up to 100 percent scrap and sponge iron. This enables operators of melt shops to respond to raw material supply bottlenecks and exploit short-term price fluctuations. The solution consists of a bottom-blowing converter that makes it possible to blow in oxygen, lime and coal through bottom tuyeres and of a hot blast top lance for feeding additional energy into the steel bath. The Jet Process can either be implemented as a new installation or retrofitted in existing plants in a modular fashion....
A pebble heater with an energy efficiency of more than 95 percent is used to create the hot blast.

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