4F 8 pole 150x100x25 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by gbroques on Sat, 21/12/2024 - 22:47

Duration:

00:02:03

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	125.398 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	231.068 RPM	n_nom
Nominal tip speed ratio	4.83702	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.627333	ai
Inner-to-outer magnet radius	0.460355	kd
Flux density in airgap	0.263932 T	Bmax
Flux density on magnet surface	0.257168 T	Bmg
First harmonic of flux density in airgap	0.257765 T	Bp
Flux per pole (Calculated)	0.00398032 Wb	Flux_pole
Magnets on a rotor disk	8	magnet_num
Distance between magnets	0.5 mm	dist_magnet_Rin
Magnet mass	30000 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	375000 mm3	Vmag
Volume of all magnets	6000000 mm3	VolumeMagnet
Remanent magnetic flux density	0.39 T	Br
Magnetic coercivity	227950 A/m	Hc
Maximum Energy Product	30 KJ/m³	BHmax
Outer diameter	564.844 mm	Dout
Average radius	202.961 mm	Ravg
Inner radius	127.961 mm	Rin
Outer radius	282.422 mm	Rout
Effective outer radius	277.961 mm	Rout_eff
Mass of rotor disks	39.4413 kgr	BackIronMass
Volume of rotor disks	5011.6 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.40456 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	13 mm	tw
Number of phases	3	nphase
Number of coils per phase	2	q
Total number of coils in stator	6	coil_num
Number of turns per coil	47	Nc
Copper wire diameter	1.7 mm	dc
Number of wires at hand	3	No_wires_at_hand
Winding fill factor	0.55	kf
Copper wire cross-sectional area	6.81 mm2	sc
Copper wire cross-sectional area (Calculated)	6.65924 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.27 mm²	sc_multi_wires
Copper wire diameter (Calculated)	2.91258 mm	dc_theor
Coil leg width	44.765 mm	wc
Average length of coil turn	644.68 mm	lavg
Stator nominal temperature	70.2066 C°	tc_real
Stator surface area	3463.09 cm²	stator_surface_area
Heat coefficient	0.248073	cq_real
Current density	5.86718 A	Jmax_real
Resistivity of copper at nominal temperature	2.01579E-8 Ohm.m	pt
Resistance of a single coil	0.089689 Ohm	Rc
Phase resistance	0.179378 Ohm	Rphase
Phase inductance	0.00126842 H	Ls
Nagaoka constant	0.0898031	Kn
Winding coefficient	0.739385	kw
Volume of a single coil	375168 mm3	coil_volume
Weight of a single coil	1923.2 g	coil_weight_constr
Coil hole at Ravg	54 mm	coil_hole_Ravg
Coil hole at Rin	8 mm	coil_hole_Rin_constr
Coil hole at Rout	100 mm	coil_hole_Rout_constr
Coil mass for construction	13.4624 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	10.264 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	18.9239 V	EMF_nom
Current at the nominal wind speed	39.9555 A	Iac_nom
Terminal voltage at the nominal wind speed	11.2904 V	V_term_line
Nominal frequency	15.4045 Hz	fnom
Generator power (Calculated)	1353.34 W	Pnom
Copper losses (Calculated)	859.098 W	Pcopper
Eddy current losses (Calculated)	9.22811 W	Peddy
Generator efficiency (Calculated)	0.597585	efficiency_real
AC Power at the rectifier (Calculated)	1218.01 W	Pnom_rect
DC Power at the batteries (Calculated)	1096.21 W	Pnom_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	5	No_bolts_hub
Mass of bearing hub	8344.46 g	BearingHubMass
Rotational losses (Calculated)	43.0148 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	795.038 EUR	Totalcost
Total generator mass	83.1009 kgr	TotalMass
Total generator volume	22.3016 dm3	TotalVolume
Blade rotor mass	15.2925 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	428.887 EUR	Magcost
Magnet shipping cost	362.319 EUR	shippingcost
Copper mass	11.0682 kgr	mcu
Cost of copper	163.367 EUR	coppercost
Resin mass	2.59143 kgr	resinmass
Cost of resin	35.7952 EUR	resincost
Resin volume	1905.46 cm3	ResinVolume
Total mass of one generator rotor	34.7206 kgr	TotalMassRotor
Cost of iron	48.5128 EUR	ironcost
Surface area of moulds	0.747954 m2	woodS
Total cost of moulds	118.476 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-9569.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

2.00m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

3.00m/s

Nominal wind speed:

10.00m/s

Cut-in TSR:

8.75

Design TSR:

7.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

150mm

Magnet width:

100mm

Magnet thickness:

25mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Triangular

Winder bolt size:

8.00mm

Winding fill factor:

User defined

Winding fill factor:

0.55

Stator thickness:

User defined

Stator thickness:

13mm

Current density:

6.00A/mm2

System Inputs

System voltage:

24.00V

Nominal voltage:

24.00V

Transmission cable losses:

10.00%

Rectifier losses:

10.00%

Financial

Copper price:

12.00€/kg

Iron price:

1.00€/kg

Resin price:

11.23€/kg

Plywood price:

17.60 €/m²

Simulation Inputs

Also run UserAFPM:

false

Constants

Copper resistivity:

1.678E-8 Ω·m

Copper density:

8.94g/cm³

Iron density:

7.87g/cm³

Resin density:

1.36g/cm³