effect of blending on operational performance and ......new delhi india background – moatize mine...
TRANSCRIPT
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Effect of Blending on Operational Performance and Generation Costs of an Indian Power Plant
Dr Anthony [email protected]&B Mylec
Dr Oliver [email protected] International SA
1st IEA CCC Coal Quality Workshop9-10 November 2016New Delhi India
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Background – Moatize Mine
• Vale’s Moatize mine produces a hard coking coal product and a thermal coal product.
• Mine is ramping up to an output of 22mt of coal per year.
• Coal Qualityo Calorific Value – 6050 kcal/kg GARo Moisture - 5% AR o Ash – 24% ARo Volatile Matter – 20 % ADo HGI – 72o IDT AFT – 1480 oC (red)
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India – Coal Fired Power Plants
• Very high coal production & coal fired power capacity
• Numerous coal mines with large rail network
Railways
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Mundra Power Plant - Coal Supply Options Mundra Power Plant5x800MWSupercriticalDesign on Indo/SA blendIndo coal contract1 coal in blend is fixed
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MarketMastor
Blend Modelling – MarketMastor™
Power Plant ModelPower
PlantsSpecs
Scenarios
Coal Quality Mines
Trade
Shipping+Port
Domestic freight+Port+Taxes
Evaluate Output
Blending
Coals
Market Model
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Plant Limitations – Studied coals
MoatizeRaw Coals
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POWER PLANT PERSPECTIVE
• Power plant confirmed a close match between the actual power plant performance and the desktop analysis.
• Agreed with the technical recommendation of using Moatizecoal in 20% blend where possible.
• Ash deposition potential of currently used coal reduces by 20% when using Moatize coal.
• Blend usage has resulted in higher boiler efficiency, improved mill performance, reduction in mill power, and reduction in power for draft system (reduction in auxiliary power use).
• Mundra power plant are continuing to use Moatize coal
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FOR MORE…
• For the rest of the presentation please contact Anthony Williams on 0427 910 049 or via email at [email protected]