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1 INTRODUCTION TO COMBINED CYCLES

Introduction to Combined Cycles

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The process for converting the energy in a fuel into electric power involves the creation of mechanical work, which is then transformed into electric power by a generator. Depending on the fuel type and thermodynamic process, the overall efficiency of this conversion can be as low as 30 percent. This means that two-thirds of the latent energy of the fuel ends up wasted. Simple cycle gas turbine (GTs) plants average just under 30 percent efficiency.

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INTRODUCTION TO COMBINED CYCLESN N EMPRESA / REANombre del tema NNOMBRE DEL PROYECTONotas:The term combined cycle refers to the combining of multiple thermodynamic cycles to generate power.

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N SIMPLE CYCLE

N COMBINED CYCLE POWER PLANTS

N COMBINED CYCLE POWER PLANTS

N COMBINED CYCLE POWER PLANTS

N CCPP SYSTEM OPTIONS

N CCPP SYSTEM OPTIONS

N COMBINED HEAT AND POWER (CHP)

N COMBINED HEAT AND POWER (CHP)

N ELECTRICITY DEMAND AND SUPPLY.

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DEMAND AND SUPPLYN DEMAND AND SUPPLY

N WORLD POWER GENERATION BY FUEL TYPE

N COST OF ELECTRICITY

N COST OF ELECTRICITY

N CHARACTERISTICS OF COMBINED CYCLE POWER PLANTS.

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N HIGH THERMAL EFFICIENCY

N EVOLUTIONI OF RANKINE CYCLE

N EVOLUTION OF HEAVY DUTY GAS TURBINE

N PART LOAD EFFICIENCY

N PART LOAD EFFICIENCY

N COMPARISON OF GAS TURBINE PRICE

N FUEL FLEXIBILITY

N DEFINITION OF RELIABILITY AND AVAILABILITY

N OPERATING FLEXIBILITY

The SCC5-4000F includes: Siemens Gas Turbine: SGT5-4000FSiemens Steam Turbine: SST5-3000Siemens hydrogen-cooled Generator SGen5-2000HThe Siemens Power Plant Automation systemN OPERATING FLEXIBILITY

N OPERATING FLEXIBILITY

START-UP PROCEDUREN OPERATING FLEXIBILITY

N OPERATING FLEXIBILITY

N EMISSIONS

N EMISSIONS

N EMISSIONS

N EMISSIONS

N EMISSIONS

N EMISSIONS

N EMISSIONSGlobal Greenhouse Gases Molecules

N EMISSIONSGlobal Greenhouse Gas Emissions by Gas

Amount of warming that each gas is currently causing in the atmosphereN EMISSIONS

TREND IN GLOBAL EMISSIONS.

N EMISSIONS

N EMISSIONS

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SINGLE-SHAFT

N SINGLE-SHAFT

N SINGLE-SHAFT

N GENERAL OUTPUT AS A FUNCTION OF INLET TEMPERATURE

N SINGLE-SHAFT

N ENHANCEMENT OF MAIN STEAM CONDITIONS

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