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Result & Discussion - Coggle Diagram

- - - - arzu
        
        Case 3
        
        3 blade
        
        4 meter radius
        
        Naca 63418
        
        Cp = 0.46
        
        Q-blade
        
        0 degree
      - betz
        
        theory Cp=0.593
        
        wind turbine
        
        non-linear function
        
        TSR
        
        Pitch angle
      - Suchi
        
        CFD
        
        Naca 2412
        
        1 m radius
        
        3 blades
        
        Cp =0.16
        
        pith angle, 10 degree
      - Current work
        
        3 blade
        
        S1223
        
        0.75 m radius
        
        Cp = 0.3
        
        0 degree
    - - Current work
        
        Valid
        
        close to data
        
        range tsr 1 to 10
  - - - Cp
        
        2 blades
        
        TSR range
        
        Cp value
        
        Summrize
        
        optimu TSR 6-7
        
        Suchi different
        
        investigate number blade same solidit
        
        result valid
        
        within range
        
        3 blades
        
        TSR range
        
        Cp value
        
        Summrize
        
        data intersect
        
        4 blades
        
        TSR range
        
        Cp value
        
        Summrize
        
        Optimum range around 3
        
        data intersect
      - Cm
        
        3 blades
        
        min and max value
        
        shape
        
        data intercept
        
        TSR max
        
        4 blades
        
        min & max value
        
        shape
        
        decrease increcrease then decrease
        
        2 blades
        
        min & max value
        
        Shape
        
        data intersect
- - - - Thrust vs TSR
        
        Compare behavior
        
        max & min thrust
      - RPM vs TSR
        
        behavior graph
        
        Same
        
        maximum & min rpm
      - Power vs TSR
        
        maximum power
        
        TSR value
        
        Compare behavior
      - Torque vs TSR
        
        compare behavior
        
        maximum torque
  - - - Power vs rpm
        
        Behavior =
        
        maximum power- rpm
        
        compare blade
      - Torque vs rpm
        
        Behavior =
        
        maximum torque- Tsr
        
        compare blade
      - Thrust vs rpm
        
        behavior = Thrust vs TSR
        
        maximum thrust -rpm
        
        compare blade
- - - - lift force
        
        faster than incoming flow
    - - ratio of
    - - river(1.5m/s)
    - - rpm
        
        increase with TSR
    - - same as rpm
    - - increase
    - - also increase
      - equation BEM
        
        power obtain
    - - rotor
        
        spin fast
        
        act solid wall
    - - torque
      - power
    - - thrust
      - rpm
    - - too fast
        
        turbulent or act wall
        
        power decrease
      - too slow
        
        pass through
        
        no power
    - - compare
        
        4 blades
        
        value aerodynamics
        
        other model
    - - axial force
        
        thrust
      - tangential force x R
        
        torque
  - - - 4-blade
        
        rpm
        
        power
    - - rural area
      - 700-1000w
    - - increase
        
        high blade
        
        poor performance
        
        low blade
        
        high performance
    - - thrust high
        
        blade area
        
        river stream
      - torque
        
        increase performance
    - - thrust low
      - torque decrease
        
        zero
      - low power output