Submitted by fromwastetowind on Thu, 27/02/2025 - 14:30 Duration: 00:00:01Tabs Results Blade Rotor Outputs PropertyValueVariable name RPM at the cut-in wind speed (TSR)159.236 RPMn_cut_in RPM at the nominal wind speed (TSR)270.416 RPMn_nom Nominal tip speed ratio2.83035 tsr_nom Generator Rotor Outputs PropertyValueVariable name Rotor disk thickness10 mmhr Magnet width-to-pole pitch ratio0.881804 ai Inner-to-outer magnet radius0.677318 kd Flux density in airgap0.157 TBmax Flux density on magnet surface0.237 TBmg First harmonic of flux density in airgap0.1 TBp Flux per pole (Calculated)0.000711 WbFlux_pole Magnets on a rotor disk12 magnet_num Distance between magnets-5.0477 mmdist_magnet_Rin Magnet mass7200 gMagnetMass Magnet density5 g/cm3mag_density Volume of a single magnet60000 mm3Vmag Volume of all magnets1440000 mm3VolumeMagnet Remanent magnetic flux density0.39 TBr Magnetic coercivity227950 A/mHc Maximum Energy Product30 KJ/m³BHmax Outer diameter315.657 mmDout Average radius129.951 mmRavg Inner radius104.951 mmRin Outer radius157.829 mmRout Effective outer radius154.951 mmRout_eff Mass of rotor disks12.3176 kgrBackIronMass Volume of rotor disks1565.13 cm3BackIronVolume Generator Stator Outputs PropertyValueVariable name Stator thickness18 mmtw Number of phases3 nphase Number of coils per phase3 q Total number of coils in stator9 coil_num Number of turns per coil203 Nc Copper wire diameter0.75 mmdc Number of wires at hand1 No_wires_at_hand Winding fill factor0.75 kf Copper wire cross-sectional area0.44 mm2sc Copper wire cross-sectional area (Calculated)0.439386 mm²sc_theor Copper wire cross-sectional area of a sinlge wire0.44 mm²sc_multi_wires Copper wire diameter (Calculated)0.74815 mmdc_theor Coil leg width6.6163 mmwc Average length of coil turn240.775 mmlavg Stator nominal temperature147.021 C°tc_real Stator surface area286.747 cm²stator_surface_area Heat coefficient0.506889 cq_real Current density5.99163 AJmax_real Resistivity of copper at nominal temperature2.09179E-8 Ohm.mpt Resistance of a single coil2.32367 OhmRc Phase resistance6.971 OhmRphase Phase inductance0.0121391 HLs Nagaoka constant0.304874 Kn Winding coefficient0.95 kw Volume of a single coil28674.7 mm3coil_volume Weight of a single coil194.158 gcoil_weight_constr Coil hole at Ravg60 mmcoil_hole_Ravg Coil hole at Rin60 mmcoil_hole_Rin_constr Coil hole at Rout60 mmcoil_hole_Rout_constr Coil mass for construction1.94158 kgrmcu_constr EMF at the cut-in wind speed (Calculated)29.0813 VEMF_cut_in EMF at the nominal wind speed (Calculated)49.3955 VEMF_nom Current at the nominal wind speed2.63632 AIac_nom Terminal voltage at the nominal wind speed39.5164 VV_term_line Nominal frequency27.0416 Hzfnom Generator power (Calculated)312.534 WPnom Copper losses (Calculated)145.349 WPcopper Eddy current losses (Calculated)0.0387765 WPeddy Generator efficiency (Calculated)0.66322 efficiency_real AC Power at the rectifier (Calculated)281.28 WPnom_rect DC Power at the batteries (Calculated)253.152 WPnom_dc Generator Bearing Hub Outputs PropertyValueVariable name Number of bolts on hub4 No_bolts_hub Mass of bearing hub3708.65 gBearingHubMass Rotational losses (Calculated)13.3152 WProt Costs, Mass and Volume PropertyValueVariable name Total generator cost243.091 EURTotalcost Total generator mass23.5033 kgrTotalMass Total generator volume6.57356 dm3TotalVolume Blade rotor mass1.39353 kgrblade_rotor_mass Softwood density500 kgr/m³softwood_density Cost of magnets111.209 EURMagcost Magnet shipping cost86.9565 EURshippingcost Copper mass1.73038 kgrmcu Cost of copper25.5403 EURcoppercost Resin mass2.25532 kgrresinmass Cost of resin31.1526 EURresincost Resin volume1658.33 cm3ResinVolume Total mass of one generator rotor9.7588 kgrTotalMassRotor Cost of iron15.1506 EURironcost Surface area of moulds0.379034 m2woodS Total cost of moulds60.0389 EURwoodcost Output files Octave/Matlab variable file: simulation-9682.mat Input parameters Blade Rotor Inputs Turbine radius: 0.90mAerodynamic coefficient: 0.35Cut-in wind speed: 3.00m/sNominal wind speed: 9.00m/sCut-in TSR: 5.00Design TSR: 6.00Air density: 1.204kg/m³ Generator Rotor Inputs AFPM rotor topology: Double RotorMagnetic material: Ferrite C8Number of generator poles: 12Magnet length: 50mmMagnet width: 60mmMagnet thickness: 20mmRotor disk thickness: User DefinedRotor disk thickness: 10mmMechanical clearance: 3.00mm Generator Stator Inputs Select coil type: RectangularWinding fill factor: User definedWinding fill factor: 0.75Stator thickness: User definedStator thickness: 18mmCurrent density: 6.00A/mm2 System Inputs System voltage: 68.00VNominal voltage: 84.00VTransmission cable losses: 10.00%Rectifier losses: 10.00% Financial Copper price: 12.00€/kgIron price: 1.00€/kgResin price: 11.23€/kgPlywood price: 17.60 €/m² Simulation Inputs Also run UserAFPM: false Constants Copper resistivity: 1.678E-8 Ω·mCopper density: 8.94g/cm³Iron density: 7.87g/cm³Resin density: 1.36g/cm³