ENERGAS manufactured gas treatment equipment for the peak power plants under construction in the Republic of Belarus
22 February 2021A large-scale project is being implemented in the Republic of Belarus to create peak-standby energy sources based on Siemens SGT-800 gas turbine units. The facilities are being built at the sites of existing thermal power plants of the RUE Minskenergo, Brestenergo and Vitebskenergo.
At the Minsk CHPP-5 will operate gas turbine power plant (GTPP) with a capacity of 300 MW consisting of 6 gas turbines SGT-800, at the Berezovskaya SDPP – GTPP-254MW (5 turbines), at the Lukomlskaya SDPP – GTPP-150MW (3 turbines), at the Novopolotsk CHPP – GTPP-100MW (2 turbines). It is assumed that the operating time of each peak power facility will be approximately 700 hours per year and up to 350 starts from the cold state.
New capacities are aimed at increasing the reliability and flexibility of the country's power grid. Gas-turbine power units will be used as a reserve both for the existing infrastructure and for future wind, solar and nuclear power plants. It also contributes to the decarbonization of the economy and the transition to a new energy structure in Belarus.
As part of this project, the Russian Company ENERGAS supplies set of gas treatment equipment that comprises four gas receiving stations – one for each peak GTPP. Stations are the gas treatment stations (GTS) providing the design parameters of the fuel before its feeding into turbines of power generating units.
GTSs will be installed on supply pipelines and will perform purification, heating and flow measuring of gas. The capacity of process units is from 29,210 to 87,506 m3 / h. The main elements of GTS are following:
- Filtration system with efficiency of 99.9% for particles larger than 10 microns;
- Gas heating module based on a shell-and-tube heat exchanger;
- Condensate gathering and storage subassembly with underground drainage tank;
- Gas commercial metering unit with a relative error of no more than 1.5%;
- Fuel quality control subassembly.
Gas treatment stations are placed in their own enclosures and are equipped with necessary engineering systems, including life support systems (heating, ventilation and lighting) and safety (fire detection, gas detection, alarm and fire fighting). GTSs are fully automated; control will be carried out from the upper level of the automated process control systems of power plants.
The production stage was completed with workshop tests, and the equipment is being prepared for transportation to the facilities. ENERGAS process units are supplied with a maximum degree of prefabrication (99%), what significantly reduces the duration of the mounting and adjustment works. The coefficient of the technical use of GTS is 0.92+; reliability ratio of starts is 0.99+. Assigned resource (operating life) – not less than 30 years.
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