annual report 2010-2011 - Mahagenco

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Annual Report 2010-2011 • Cleaning of Air-preheaters and furnaces whenever possible. • Monitoring of optimization of Boiler excess air. • Heat rate is monitored on regular basis at SE / GM / CE levels Weekly / forthnightly / monthly respectively. LUBRICANTS: • Zero leakage concept is introduced at all power stations. • Oil skimmers designed and developed to recover fuel oil from drains. • Turbine and BFP oil filtration by centrifuging at Bhusawal & Nasik TPS. DM WATER: • DM water, Feed line & Steam leakages are attended on priority. • Sonic boiler tube detection system is installed at Khaperkheda TPS. MISCELLANEOUS WATER: • Ash water recycling systems at Koradi, Nasik, K’Kheda, Chandrapur TPS. • Firefighting water headers brought to ground level from underground to attend leakages. B) TECHNOLOGY ABSORPTION: • Efforts made in technology absorption as per Form B. Maharashtra State Power Generation Co. Ltd. FORM – B Form of disclosure of particulars with respect to absorption • Installation of Ammonia injection flue gas conditioning system (AFGC) • Operating system is upgraded (DCS) at Parli TPS Unit 3. • Implementation of ‘E’ tendering concept for material procurement at Mahagenco H.O. & Power Stations. RESEARCH AND DEVELOPMENT (R & D) 1. Specific areas in which R & D carried out by the Company Ozonisation of Cooling Water, AFGC System, Islanding and Black start facility at Uran, Nirafon Acoustic cleaning system at Air Heaters, Tube leakage detection system for tube leakages, Adoption of MPSP system to coal mills, Oil filtration & Oil skimper machines for reuse of oil & recovery of spilled oil. 25
Maharashtra State Power Generation Co. Ltd. 2. Benefits derived as a result of the above R & D Ozonisation :- Less operational cost against conventional method , reducing corrosion level in Metal , safe for handling. It is effective for eliminating the Legionella Bacterial level in Cooling Water System. AFGC:- SPM level of TPS is maintaining below 150 MG/nm 3 as required by Pollution Control Board Norms. Islanding System:- In case of system disturbance /failure, Islanding Scheme will come into service and GTPS local as well as area will isolated from the grid. Black Start Facility:- In case there is jerk in the grid and simultaneously failure of Islanding system , it will be possible to bring back the units and restore the supply in this area in shortest time. 3. Future plan of action AFGC systems for more units of TPS. Installation of online energy management. 4. Expenditure on R & D Nil TECHNOLOGY ABSORPTION, ADAPTATION AND INNOVATION 1. Efforts, in brief, made towards technology absorption, adaptation and innovation 2. Benefits derived as a result of the above efforts The Company has not utilized any imported technology. Maharashtra State Power Generation Co. Ltd. C. FOREIGN EXCHANGE EARNINGS AND OUTGO (a) (b) Activities relating to export, initiative taken to increase exports, development of new export markets for products and services and export plans. Total foreign exchange used and earned Total Foreign Exchange used /earned ` 1. Foreign Exchange Outgo a) Value of capital goods calculated on CIF basis Nil Component and spare parts b) Expenditure Traveling Expenses 2. Foreign Exchange earned Nil 26
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