References

EPC contract for reconstruction of air pre-warming system andsystem of air distribution into tubular air pre-heater in BKZ-75-39F boiler. Purpose - to eliminate lowtemperature sulphuric corrosion of air heaters’ tubes, while operating on highsulphuric fuel gases of oil shale processing. Implemented on three boilers. Cutomer – VKG Energia OÜ.

Design documentation development and manufacturing of low-NOX 19 MW burners for high-calorific (retort) gas of oil shale processing firing with flue gas recirculation injection into secondary air. Oil shale boiler TP-101 reconstruction for combined firing of oil shale and retort gas. There were additionally installed six gas burners and system of flue gas recirculation. Gas proportion by heat rate – 40% of boiler’s load. ENTEH was responsible for complete design project, supply of gas burners, installation of flue gas recirculation system, commissioning and start-up operations. Customer - EESTI ENERGIA.

Computational, analytical research and development of technology for combined firing of high-calorific (retort) gas of oil shale processing and pulverized oil shale in TP-101 boiler at Estonian powerplant (jointl with JSC „VTI“ and MPEI). Customer - EESTI ENERGIA.

Design and construction of CHP with OPRA gas turbine. Electrical capacity 1800 kW. Heat utilization system’s capacity up to 4500 kW. ENTEH was responsible for all design works (basic and detailed). EPC contractor for gas turbine’s exhaust gas heat utilization part.

Design development and istallation of start-up burner, configured by ENTEH, for bubbling fluidized-bed boiler on wood sawdust. Burner capacity 10 MW, fuel – shale oil. Customer - SILLAMÄE Power Plant.

Boiler’s E-25 and TS-35 reconstruction design development to increase quantity of oil shale processing gases fired in the boilers (jointly with JSC „VTI“). Design development and installation of 5 MW low-calorific (generator) oil shale processing gas burners configured by ENTEH. Customer – Kivioli Oil Shale Processing Plant.

EESTI ENERGOMONTAAZ and FORTUM POWER AND HEAT

Detailed design documentation development for hot air ducts and heat transfer surfaces in TP-101 boiler’s furnacereconstruction for two-stagepulverized oil shale firing technology implementationin order to reduce NOX (technology and basic design was proposed by FORTUM). Customer - EESTI ENERGOMONTAAZ and FORTUM POWER AND HEAT.

Design and manufacturing of 13 MW burners for high-calorific (retort) gas of oil shale processing. Reconstruction of the oil shale boiler BKZ-75-39F for combined firing of oil shale, retort (high-calorific) gas and generator (low-calorific) gas. Two retort gas burners were additionally installed on BKZ-75-39F boiler. Customer - VKG Energia OÜ.

Design documentation development of limestone pulverization and injection system into the TP-101 boiler’s furnace in order to reduce sulphur dioxide emmissions. Customer - EESTI POWER PLANT.

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