Sri Damodaram Sanjeevaiah Thermal Power Station comprises of 2 units of 800MW each located near Nelaturu village about 25 KMs from Nellore town. Krishnapatnam port is used for equipment and coal transport. The cooling water for the plant is proposed to be the sea water. Cooling water will be drawn from sea (Bay of Bengal) and reject water will be discharged back to the sea. The plant will utilize blended coal (70 % domestic washed + 30% imported)
Steam Generator is supercritical, once through type, which operates on variable evaporation point principle where water is preheated and evaporated, and steam is subsequently superheated in single pass. This type of boilers have the ability to realize supercritical steam conditions, higher efficiencies and a favorable part load. Once through boilers offer specific advantages in the use of a wide coal range in a plant.
The steam turbine is a multi-cylinder, tandem compound, single reheat, regenerative, condensing design with separate HP, IP or combined HP-IP and LP casing(s) directly coupled with the generator; and suitable for indoor installation.
APGENCO appointed DESEIN as Owners Engineer. The scope of services include review of EPC contractors’ drawings/documents, Quality Plans, O&M documents, Project Management Services and administering the EPC contract apart from monitoring and supervising the project in regard to cost, time and quality in accordance. The scope also includes supervision of the construction and commissioning activities of all the Units.
The project is under construction and is scheduled to be completed in August 2012.
Rayalaseema Thermal Power Plant is located near kalamalla village about 50 KMs from Kadapa town and 8 KM from Muddanur railway station in Kadapa district.
Water requirement of the project is met from Mylavaram reservoir across river pennar, through a 22KM long steel pipeline laid underground. Coal is transported by rail from singareni collieries.
Rayalaseema Thermal Power Project comprises of Stage I (2x 210 MW) Stage II (2 x 210 MW), Stage III (1 x 210 MW) and Stage IV (1 x 600 MW)
Salient features of the Stage I unit is Single pass Tower type Boiler supported on concrete pylons, direct fired tube mills, direct ignition, pulverized coal burners.
Salient features of the Stage II & III units are conventional two pass Boiler with bowl mills.
APGENCO appointed DESEIN as project consultants for all Stages (Stage I,II, III & IV). The scope of services for stage I, II & III was detailed engineering of all the packages while for Stage IV, it was review engineering. The scope also included supervision of the construction and commissioning activities of all the Units.
Vijayawada Thermal Power Station is located on the left bank of river Krishna at a distance of 16 KM north of Vijayawada city in Andhra Pradesh. The large expense of water impounded by Prakasam barrage across the river, near Vijayawada facilitates an efficient direct circulation cooling system for generating units.
Vijayawada Thermal Power station comprises of Stage I (2x 210 MW) Stage II (2 x 210 MW), Stage III (2 x 210 MW and Stage IV (1 x 500 MW)
Salient features of the Stage II & III units are Single pass Tower type Boilers supported on concrete pylons, direct fired tube mills, direct ignition, pulverized coal burners. Condenser cooling water is drawn from Prakasam Barrage through a canal 11.5 KM long and designed for a discharge of 2000 cusecs. A pump house is constructed for pumping cooling water to condensers. The hot water discharged from the condenser is carried back to the river through Budameru diversion channel.
Salient features of the Stage IV unit is with a two pass conventional BHEL Boilers,bowl mills. Condenser cooling water system is with Natural draft cooling tower. Make up water for the NDCT is drawn from Prakasam Barrage through the same canal described above.
APGENCO appointed DESEIN as their project consultant for Stage II, III & IV. The scope of services for stage II & III was detailed engineering of all the packages and for Stage IV, it was review engineering. The scope also included supervision of the construction and commissioning activities of the Units.
Vijjeswaram Gas Thermal Power Station is the first gas based power plant in Andhra Pradesh and located about 10 KM from Kovvur, West Godavari district, Andhra Pradesh (about 16 KM from Rajahmundry).
Vijjeswaram Gas thermal power station comprises of Stage I (3 x 33 MW) and Stage II (112MW + 60 MW). The main advantage of this project is the low gestation period of about one and half years against normal period of 5 years for a thermal station.
APGENCO had appointed DESEIN as Owner’s Engineer for the Unit-I 3 x 33 MW CCPP . Salient features of the Unit-I is that it is the first gas based power station in Andhra Pradesh utilizing the natural gas in the Godavari basin. The combined cycle plant utilizes 2 Frame-6, 3-stage, axial flow, horizontal type impulse Gas Turbines, 2 WHRBs and Single cylinder axial flow steam turbine. Water requirement is drawn from the reservoir upstream of the barrage, near the regulator of western delta main canal, where a pump house is constructed. The discharge water was led through pipes across the western delta main canal and dropped into irrigation channel of Pendyala pumping scheme.
Scope of Services include detailed engineering of all the packages. The scope also included supervision of the construction and commissioning activities of Stage I Units.