Tata Steel Sinter Plant 3

 
Jamshedpur

Tata Steel

At one of the first steel mills from Tata Steel Limited in Jamshedpur, India, Kraftblock deployed a waste heat project recovering heat from the sinter cooler of Sinter Plant 3. The up to 500 °C of heat is sucked in and brought to two Kraftblock units that are in operation since May 2025. The heat is stored and discharged in multiple cycles per day to a process back in the sinter plant. The multiple cycling per day and regular round-the clock operation saves Tata Steel up to 150 - 160 GWh in natural gas per year, avoiding the large sum of 30,000t CO2 emissions per year. Additionally, as Tata Steel stated in its annual report, the system accelerates the sintering, so the impcat on production is a central bonus.

Sinter Cooler at Sinter Plant 3 where Kraftblock recovers waste heat for storage.

Energy data

Operation:
May 2025
Storage temperature:
up to 600 °C
Storage capacity:
20 MWh
Charging power:
1.5 MW
Discharging power:
1.8 MW
Saved energy per year:
110-120 GWh
Saved emissions per year:
22,000t CO2
Candle Filter in the Kraftblock Waste Heat System to avoid dusty air.

Apart from the piping transporting hot air to the storage, the storage unit itself, blowers to discharge and a heat exchanger, there is also a filter in the system if the waste heat is to dusty.

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