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Lidskaya TETs heat and power plant (Belarus) began construction of a new combined-cycle gas turbine power plant
The state owned enterprise BelNIPIenergoprom is the general designer of the heat and power plant modernization...
Lidskaya TETs heat and power plant cycle scheme, according to the project, will be based on cross connections, i.e. a steam manifold, connecting the steam from several power boilers, will be installed downstream of a steam boiler at the GTES gas turbine power plant.
The primary component of the plant is a Kuznetsov Samara GTE-25/NK-830E gas turbine unit rated at 25 MW, designed around the NK-37 gas turbine engine. Its assigned life is 100,000 operating hours, with a time to first overhaul of 25,000 hours.
At present, there are three gas turbine units with NK-37 engines in operation – one at Bezymyanskaya TETs heating and power plant and two at Kazanskaya TETs-1. Their total accumulated operating time is over 30,000 hours.
On the 29th of September last year the state owned enterprise Grodnoenergo signed a contract with Kuznetsov Samara for the equipment to be delivered to Lidskaya TETs heat and power plant. A tender for delivery of a heat recovery steam generator will be held in the near future.
The NK-37 engine is derived from the NK-321 aeroengine and uses 60% of its components. Its weight, together with its mounting frame, is 9150 kg, its nominal power rating 25 MW, compression ratio 23.1 and its efficiency reaches 36.4 %.
Turbine inlet temperature is 1454 K and the exhaust temperature 730 K. Power shaft rotation speed is 3000 rpm, mass flow 101.5 kg/s, and the fuel consumption at nominal conditions is 5253 kg/h.
Heat recovered from the NK-37 turbine, at approximately 35 Gcal/h or 30 MW of heat power, will be used in the new 40 MW steam turbine. The steam will be supplied at a pressure of 4 MPa.
The primary fuel for Lidskaya TETs heat and power plant is natural gas, delivered via the Vilnius–Ivatsevichi gas pipeline. A booster compressor station will increase the gas pressure to 4.4 MPa and the gas will be supplied to the NK-37 fuel-metering equipment. The booster equipment and automatic control system will also be supplied by Kuznetsov Samara.
Delivery of all the equipment is to be complete by June 2007. |
