РЕШЕЊЕ МОДЕРНИЗАЦИЈЕ ПАРНОГ ТУРБОПОСТРОЈЕЊА СНАГЕ 300 МW

Abstract

The Ugljevik thermal power plant (ТPP), with a capacity of 300 MW, has been in operation since 1985. The TPP now works with significant problems, especially with the boiler, which has a reduced degree of efficiency and an increased flue gas temperature at the outlet. Therefore, high-pressure heaters must be switched off in the plant, which reduces the efficiency of the turbo plant, and the power (to about 275 MW) that can be achieved is significantly lower than the nominal one. After 200,000 operating hours, the turbo plant works with deteriorating operating characteristics and, to a significant extent, the spent useful operating life of vital turbine components due to a large number of operating hours and starts. To continue safe operation, a capital overhaul with an extension of the operating life for the next 150,000 hours is planned. In this paper, the feasibility of additional investments in the modernization of the turbine plant is considered. The modernization implies the improvement of the degree of efficiency and the increase of the electric power of the unit.