GE Power India bagged a Rs 142 crore order by NTPC for supply and installation of low NOx combustion system for 10 GW of thermal power plant capacity across the country. This is the first project awarded on such a large scale by NTPC to install low NOx combustion technology at its thermal power plant fleet.
The project involves in-combustion system modification of the boiler by staging the combustion air in the furnace to reduce the generation of fuel and thermal NOx during the combustion process. The combustion modification technology can help reduce 30-40 per cent of NOx emissions from these coal-fired boilers upto a level of less than 400 mg/Nm3 at 6 per cent oxygen content in flue gas on dry gas basis at induced draft (ID) fan outlet. The projects that have been selected for installation of low NOx combustion systems includes Stage-I (2X500 MW), Mouda Super Thermal Power Station(STPS); Stage-I (3X660 MW) and Stage-II (2X500 MW) Sipat STPS; Stage-III (2X500 MW); Stage-IV (2X500 MW) and Stage-V (1X500 MW), Vindhyachal STPS; Stage-II (2X500 MW) Simhadri STPS; (3X500 MW) Vallur TPS; Stage-III (2X500 MW), Talcher STPS. The low NOx combustion system will be delivered in a phased manner over a period of over 30 months.
