ZVEZDA-ENERGETIKA OJSC Built a Low Noise Standby Power Plant for OAO Gazprom Headquarters
ZVEZDA-ENERGETIKA OJSC has completed design and manufacture of the low noise diesel power plant Zvezda-1000NK-02MZ-MSh based on Cummins KTA 50 engine, designed for backup power supply of the headquarters of Gazprom Oil Concern situated at No. 16 Nametkina St., Moscow.
ZVEZDA-ENERGETIKA OJSC has completed design and manufacture of the low noise diesel power plant Zvezda-1000NK-02MZ-MSh based on Cummins KTA 50 engine, designed for backup power supply of the headquarters of Gazprom Oil Concern situated at No. 16 Nametkina St., Moscow. This project became a pilot one for ZVEZDA-ENERGETIKA OJSC insofar as the customer’s specific requirements to structural and environmental indices were satisfied regarding equipment operation in urban conditions.
According to the approved performance specification, the level of waste discharged into atmosphere must not exceed certain values. To achieve that, the plant uses catalyst converters that decrease the amount of emissions to the required level.
Another crucial requirement to the power plant is an average sound pressure level, which must not be over 80dBA on the measuring surface at a distance of 1m from the plant. To complete this part of the project, the Engineering Department applied sound-suppressing recommendations developed specially for ZVEZDA-ENERGETIKA OJSC by the experts of research institutes. The power plant’s gensets noise was reduced by means of absorption of sound pressure of primary and secondary noise sourses or their elimination. The primary noise sources are the engine gaspipes, the engine fan, the engine itself, engine compartment cooling fans, engine enclosures, the generator fan, the generator itself. The secondary noise sources (resonators) are the container, resilient linings, flat steel walls, flat trays, false floors, shields, silencers. Plant noise was decreased by installing the sound-absorbing walls and panels inside the container, elimination of open air ducts and hatches on the lateral surface of the container engine compartment, setting up air vents with noise-absorbing chambers, setting up sound-absorbing panels and partitions inside the air vents, installing spring vibration dampers, using highly efficient exhaust silencers. The layouts were complicated by the project requirements, regarding strictly determined points of communication lines connection.
In early August 2010, the low-noise power plant successfully passed the factory acceptance test. The plant was tested at the rated and super-rated loads, all necessary parameters were tested in compliance with the approved testing procedure. Based on the test results, the low-noise power plant Zvezda-1000NK-02MZ-MSh was given a positive rating by the customer’s representatives. The equipment is scheduled for dispatch in late August.