Energy, Bulgaria, 2025–26
Cogeneration plant with two gas engine modules
Erection of the equipment, piping, ducts and stacks of a new cogeneration plant with two gas engine modules at a district heating plant in Bulgaria.
Key facts
- Sector
- Energy
- Country
- Bulgaria
- Year
- 2025–26
- Status
- Completed
- Disciplines
Scope of work
- Erection of the auxiliary systems of the two cogeneration modules: lube oil system with waste oil tanks, starting and instrument air with compressors and receivers, gas pressure regulating and metering units, and the cooling water system with radiators and expansion vessels
- Erection of the two heat-recovery steam boilers with drums, pumps and flue ducts, the flue gas catalysts, the Ø1200 ducts with expansion joints and explosion relief flaps, and the two stacks with silencers and bypass tees
- Erection of a 36 t/h deaerator, district heating water heat exchangers and pumps, tanks, and motorised shut-off and control valves up to DN700
- Erection of about 1,600 m of process piping in seamless P265GH pipe, Ø26.9 to Ø711 mm, with fittings, flanges and supports, in the hall and the outdoor area; gas supply line
- Fabrication and erection of the supporting steel structure of the heat-recovery boilers; erection of platforms, stairs and handrails
- Anti-corrosion protection: blasting to Sa 2½, zinc-epoxy primer, epoxy intermediate and polyurethane top coat (240 µm) on structures and piping
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