The paper aims to present the current status of the coa1-fired power sector in Russia, the prospects for renovation activities based on the fluidised bed technology and the existing experience on CFB refurbishment projects. The renovation needs of the power sector, among the retrofitting, repowering and reconstruction options, were estimated through a ana1ysis. The most attractive system to renovate a power plant between the Supercritica1 Combustion (SC) and the Fluidized Bed Combustion (FBC) technology was eva1uated. Furthermore, the boiler replacement with a CFB unit in the Shatura power plant was studied and its replication potentia1 яз the Russian coa1-fired power plant park was examined.
Nowadays, the installed capacity of coa1-fired power plants in the Russian Federation is 29.3 GWe, while they account for about 19% of the tota1 electricity generation in the area. The low efficiency and especia1ly the advanced age are the determinant factors for renovation applications at the Russian units. Even in the more conservative modernisation.
Scenario, over 30% of the thermoelectric units have to be repowered or reconstructed. CFB is the most promising technology for such modernisation projects, when the renovation potentia1 is high. The main characteristics including high volatile yield, low ash content and a large share of light fractions in the as-fired milled peat were taken into account during the CFB boiler ca1culations in the Shatura power plant. Upgrading the existing coa1-fired power plant equipment with CFB technology, which is known to be environmenta1 friendly and efficient, will open new perspectives to the operating power plants in Russia.
Keywords: Rehabilitation emissions reduction efficiency improvement, coa1-fired power plants