Berezovskaya GRES Power Unit No.3 under construction had its first boiler firing. 12 of 24 oil-fires burners were tested in operation, which is equivalent to 20% of the boiler steam load.
With the first oil ignition of the boiler successfully completed, the specialists of E.ON Engineering set about performing steam-water-oxygen cleaning (SWOC) of the boiler circuit. SWOC is undertaken during the first boiler firing using fuel oil in the course of testing under 30% thermal load.
The cleaning was accomplished to remove foreign particles and contamination from the boiler circuit and main steam lines; clean the newly mounted boiler heating surfaces from iron oxides; and obtain a durable protective oxide coating on cleaned pipe and steam line surfaces to enable fast placement of equipment into intended water-chemistry operating conditions.
The SWOC process will take about two weeks. It will be completed when cleanliness of steam supplied from the boiler reaches the level prescribed by technology. Following the removal of temporary pipelines, installation of authorized shutoff valves and adjustment the turbine control system, the boiler will be connected to the turbogenerator set to allow the start of integrated testing of the new power unit.
Construction of 800 MW Power Unit No.3 at Berezovskaya GRES is the final project under the mandatory investment program of E.ON Russia JSC. The new Power Unit will be commissioned in the summer of 2015. After commissioning, the installed capacity of Berezovskaya GRES will be 2,400 MW, while the total installed capacity of E.ON Russia JSC will exceed 11 GW, which is 30% more than before the launch of the investment program.