Vitality EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Presentation by BHEL - Corporate Engineering Product Development

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Vitality EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Presentation by BHEL - Corporate Engineering & Product Development 5 June 2008

ENERGY EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Improvements in existing innovations, for example, sub-basic power plants and hydro control plants. Presentation of supercritical and ultra supercritical power plants. Presentation of cutting edge innovations, for example, Integrated Gasification Combined Cycle plants or IGCC.

Initiative - New materials and accessibility of cutting edge building strategies, for example, FEM, CFD, Simulation, and so on., running on speedier and less expensive PCs . Advancement of more effective streamlined cutting edge profiles and re-planning the gulf and outlet areas utilizing current CFD methods. Enhanced cycle presented - expanding steam parameters like principle steam weight, primary steam temperature and hot warm temperature or enhancing the inward effectiveness by decreasing misfortunes in the steam turbines ENERGY EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Improvements in existing advancements Steam Power Cycle 1 kcal/kWh diminishment in TG cycle warm rate, coal utilization lessens by 300 and 700 tons for every year for 210 and 500 MW sets.

Losses confined by utilizing more successful between stage fixing and shaft fixing by keeping spiral clearances to the base. New Rating Developed - another financially savvy and thermodynamically proficient plant with a unit rating of 600 MW. Vitality EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Improvements in existing innovations Steam Power Cycle

Use of aerofoil bladed PA fans, with channel manage vane control set up of damper control - diminished fan misfortunes. Substitution of worm rigging via planetary apparatus in pulverisers has enhanced their vitality productivity. Effectiveness of kettle encourage pumps - Enhanced by one percent through thermo pressure driven re-plan Use of variable speed drives with ID fans and BFPs - decreased vitality misfortunes at part stacks. Vitality EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Improvements in existing advances Auxillary control utilization

PADO (Performance Analysis, Diagnosis and Optimization) can give online direction to administrators to run the plant with least misfortunes and downtime Smart divider blowing framework - Optimizes the steam blowing cycle for sediment blowers, subsequently enhancing the warmth retention in heater surfaces and decreasing the utilization of helper steam. Vitality EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Improvements in existing innovations Control and Instrumentation

Washing of coal, or beneficiation, to keep up fiery remains substance to 30-35% The advantages are: Coal quality gets to be distinctly predictable wrt slag %age Economical outline of Boiler, less space, less pulverisers, decreased size of Auxiliaries – Lower capital cost Low operational costs Better effectiveness Lower particulate emanations ENERGY EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Improvements in existing advancements Coal Washeries Establishment of coal washeries needs to given a high need.

The station warm rate is 3% lower than with the routine sub-basic cycle. Control plant cycles working over the basic weight 221.2 bar. Supercritical cycle's leverage - 'smolder less fuel for a similar yield' and low discharges. Steam parameters like 250 bar weight, 568 C principle steam temperature and 600 C hot warm temperature are normally utilized expansive R & D endeavors are centered around advancement of force plants with ultra-supercritical steam parameters of 350 bar, 700 C fundamental steam and warm steam temperatures and net proficiency of half by the year 2015. Vitality EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Introduction of supercritical power plants BHEL is related with 660 MW Barh Super basic Project

WHAT IS IGCC 3 BLOCKS IN COMBINED CYCLE POWER PLANT STACK GT POWER ST POWER NG OIL STEAM TURBINE GAS TURBINE STEAM GAS EXHAUST H R S G CLEAN FUEL GAS COAL GASIFICATION GAS CLEAN-UP 2 BLOCKS IN COAL GASIFICATION PLANT

IGCC Advantage Conventional Coal plant* IGCC Plant NOx 350 ppm <25 ppm SOx 600 ppm 245 ppm SPM 50 mg/Nm3 2 mg/Nm3 CO 2 Emission High 10% Less Fuel consumption High 7% less Water consumption High 40% Less * Typical 500MW warm plant Low Emission, High Efficiency Power Generation Technology

Reduce unfriendly effect of fossil fuel burning on condition Acid rain Suspended Particulate Matter in air Green House Effect WHY IGCC ? Utilizes Low Grade powers Environment Friendly Power Generation

BHEL's Gasification & IGCC Development Program BHEL has worked for over 2 decades on improvement of IGCC first historically speaking plant of 6.2 MW set up in 1988 at Trichy Feasibility of scale up of the 6.2 MW to ~100 MW is built up by BHEL High controlled R&D council set up under chairmanship of logical counselor has prescribed for scaling up to 100 MW site rating plant BHEL has marked a MOU with APGENCO on tenth May08 for IGCC Plant at Vijaywada BHEL has contracted more than 60 FBC and 17 CFBC boilers Largest in operation : 125 MW : Under development : 250MW Next Step - Basic Engineering for 400 MW IGCC finished 1 st Largest size 125MW IGCC Plant arrange anticipated from APGENCO in 2-3 months.

ENERGY EFFICIENCY IMPROVEMENT IN THE POWER SECTOR Introduction of cutting edge advances Transmission and circulation of Power AC Transmission – 400 kV, 765 kV DC Transmission – 500, 800 1200 kV AC Transmission – Transformer, Disk Insulators, Switchgears, CT, CVT HVDC

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