Waste heat energy represents a huge yet largely untapped resource in the industry. If energy lost from the large quantities of hot excess gases from furnaces, flare stacks, boilers, kilns, and ovens could be captured and recovered, then considerable amounts of primary fuel could be saved. A key challenge is often the intermittent and/or variable nature of the waste heat source, while the potential application of the captured energy needs to be continuous and non-variable.

A Thermal Energy Storage (TES) system solves this intermittence and ‘phasing’ mismatch between source and application. Our partnership with Kraftblock, Germany, brings a unique TES technology to market that allows the capture and storage of high-grade heat from industrial processes up to 1300 °C.

At its core is an innovative storage material that combines high thermal conductivity with high specific heat capacity and can store temperatures up to 1300 °C in a modularised and scalable format.

The overall function of the TES is simple:

Charging – heat is transferred from the heat transfer medium to the granulate (storage material), where it is stored.

Discharging – To access the energy as needed, the charging process is reversed: An ambient transfer medium is made to flow through the hot granulate and extracts the thermal energy.

We are engineering and implementing this Green Energy solution in the heavy industry enabling substantial primary fuel savings and significant CO2 emissions reduction for our customers.

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