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Plasma Ignition and Combustion Stabilization Project of Dushanbe Power Plant in Tajikistan

Plasma Ignition and Combustion Stabilization Project of Dushanbe Power Plant in Tajikistan

Plasma Ignition and Combustion Stabilization Project of Dushanbe Power Plant in Tajikistan

August 19,2020

DUSHANBE Power Plant has 2×150MW ultra-high pressure units. The plasma ignition system was installed during its construction stage and helped to save plenty of fuel oil during boiler commissioning as well as commercial operation. This is also a fuel oil free power plant.

 

Name of Power Plant DUSHANBE Power Plant
Number & Capacity of Unit 2×150MW
Type of Project Newly-built
Boiler Supplier Harbin Boiler Works
Type of Boiler One intermediate reheat, balanced ventilation, tight sealing, solid-state slag removal, all steel frame suspension structure, π type layout pulverized coal boiler
Type of Combustion T-fired, total 16 sets of coal burners arranged in 4 layers
Number of Plasma Burners 4 (per boiler)
Location of Plasma Burners at bottom elevation
Fuel Oil System Without fuel oil system. Fuel oil free power plant
Pulverizing System Direct firing pulverizing system with 4 sets of bowl mills
Coal Quality Bituminous coal with high ash
Rate of Fuel Oil Saving 100%

The characteristics of coal fired at DUSHANBE Power Plant are listed as follows:
 
Proximate Analysis Design Coal
Fixed Carbon % (FCar) 36.68
Volatile Matter % (Var) 24.56
Moisture % (Mar) 4.9
Ash % (Aar) 33.85
Low heating Value, LHV (Qnet,var) 18.36
Grindability Index, HGI 56