1 Steam Turbine Optimization for Solar Thermal Power Plant Operation Research Student: Anneli Carlqvist Project Leader: Andrew Martin Associate Professor.

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Presentation transcript:

1 Steam Turbine Optimization for Solar Thermal Power Plant Operation Research Student: Anneli Carlqvist Project Leader: Andrew Martin Associate Professor (Docent)

2 Background Department of Energy Technology Concentrating Solar Plant - CSP Thermal Energy Storage - TES Steam turbine- ST Source: Albengoa Solar

3 CSP Electricity Plants Department of Energy Technology PlannedPowerProjectnameCSP-typeThermal Fluid Thermal Storage Start up[MW] Carri Energy Farm (US)Linear FresnelWater/steamSteam drum Solar Tres (Esp)Power TowerMolten Salt Solana (US)Parabolic TroughHTFMolten salt Andasol 1 (Esp)Parabolic TroughHTFMolten Salt 2011 (ug)553 Mojave Solarpark (US)Parabolic TroughWater/steamMolten Salt SOLENHA (Fr)Parabolic TroughHTFMolten Salt Nevada Solar 1 (US)Parabolic TroughHTFx

4 CSP Operating Conditions Department of Energy Technology Concentrating Solar Plant # of Start-ups -High peak load demands Intermittent operation -Seasonal -Diurnal (day/night) -Daytime (solar radiation fluctuation) Source: Andasol 1to 2

5 Diurnal Operation Department of Energy Technology CSP vs Common Thermal Power Plant Regarding Boundary conditions: Example of CSP – TES – ST Operation Peak load operation Source: Newport Corporation

6 Stop/Start Process Department of Energy Technology Warm Keeping – Insulation - Steam Source: Siemens Industrial Turbomahinery AB

7 Project Goals Within framework of a Tech. Lic. WP Literature survey for state-of-art CSP technology CSP system technologies with focus on ST optimization for next- generation systems WP Establish simulation tools for both system and major ST sub- component WP Investigate relevant scenarios and how design and/or operation changes affect performance

8 Project Status Within framework of a Tech. Lic. WP Literature survey PhD courses WP Simulation program Modelica WP MSc Thesis Student to investigate TES relevant scenarios and how design and/or operation changes affect performance

9 Work Package 2 Department of Energy Technology Examine the operation of the existing solar steam turbine Work Task: Thermal Stresses – lifecycle & Operation conditions Modeling Solar steam turbine regarding heat transfer in rotor and casing. Create a model in Modelica

10 Work Package 2 Department of Energy Technology Temperature gradient – critical level vs. start-up time Thermal Stresses – lifecycle & Operation conditions Rotor/Hub Stator/Casing. m*h in. Q loss z. m*h out

11 Project Details Project Duration: 2008 – 2010 Source of financing: TURBO POWER Partners: The Swedish Energy Agency Siemens Industrial Turbomachinery AB Volvo Aero Sweden Linköping University Mälardalen University Chalmers University of Technology Lund University Department of Energy Technology