Clone of Clone of kierroskone | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by Juntunenn on Sun, 29/11/2020 - 17:24

Duration:

00:00:31

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	258.758 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	488.891 RPM	n_nom
Nominal tip speed ratio	5.58225	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.439452	ai
Inner-to-outer magnet radius	0.820478	kd
Flux density in airgap	0.106421 T	Bmax
Flux density on magnet surface	0.162138 T	Bmg
First harmonic of flux density in airgap	0.0918535 T	Bp
Flux per pole (Calculated)	0.000129906 Wb	Flux_pole
Magnets on a rotor disk	28	magnet_num
Distance between magnets	21.0232 mm	dist_magnet_Rin
Magnet mass	2240 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	8000 mm3	Vmag
Volume of all magnets	448000 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	446.075 mm	Dout
Average radius	202.813 mm	Ravg
Inner radius	182.813 mm	Rin
Outer radius	223.038 mm	Rout
Effective outer radius	222.813 mm	Rout_eff
Mass of rotor disks	24.5986 kgr	BackIronMass
Volume of rotor disks	3125.62 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	0.211671 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	18 mm	tw
Number of phases	3	nphase
Number of coils per phase	7	q
Total number of coils in stator	21	coil_num
Number of turns per coil	89	Nc
Copper wire diameter	1.6 mm	dc
Number of wires at hand	1	No_wires_at_hand
Winding fill factor	0.5	kf
Copper wire cross-sectional area	2.01 mm2	sc
Copper wire cross-sectional area (Calculated)	1.86047 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	2.01 mm²	sc_multi_wires
Copper wire diameter (Calculated)	1.53949 mm	dc_theor
Coil leg width	20.0754 mm	wc
Average length of coil turn	168.545 mm	lavg
Stator nominal temperature	55.3824 C°	tc_real
Stator surface area	1421.12 cm²	stator_surface_area
Heat coefficient	0.18207	cq_real
Current density	4.62804 A	Jmax_real
Resistivity of copper at nominal temperature	1.90789E-8 Ohm.m	pt
Resistance of a single coil	0.142384 Ohm	Rc
Phase resistance	0.996689 Ohm	Rphase
Phase inductance	0.00248767 H	Ls
Nagaoka constant	0.284287	Kn
Winding coefficient	0.95	kw
Volume of a single coil	60904.9 mm3	coil_volume
Weight of a single coil	275.607 g	coil_weight_constr
Coil hole at Ravg	20 mm	coil_hole_Ravg
Coil hole at Rin	14.0433 mm	coil_hole_Rin_constr
Coil hole at Rout	26 mm	coil_hole_Rout_constr
Coil mass for construction	6.06335 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	20.528 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	38.947 V	EMF_nom
Current at the nominal wind speed	9.30236 A	Iac_nom
Terminal voltage at the nominal wind speed	28.226 V	V_term_line
Nominal frequency	114.075 Hz	fnom
Generator power (Calculated)	787.705 W	Pnom
Copper losses (Calculated)	258.742 W	Pcopper
Eddy current losses (Calculated)	9.36597 W	Peddy
Generator efficiency (Calculated)	0.723388	efficiency_real
AC Power at the rectifier (Calculated)	708.935 W	Pnom_rect
DC Power at the batteries (Calculated)	638.041 W	Pnom_dc

Generator Bearing Hub Outputs
Property	Value	Variable name
Number of bolts on hub	4	No_bolts_hub
Mass of bearing hub	3708.65 g	BearingHubMass
Rotational losses (Calculated)	33.0984 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	318.14 EUR	Totalcost
Total generator mass	36.9619 kgr	TotalMass
Total generator volume	10.002 dm3	TotalVolume
Blade rotor mass	3.30317 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	54.5211 EUR	Magcost
Magnet shipping cost	27.0531 EUR	shippingcost
Copper mass	5.66054 kgr	mcu
Cost of copper	83.5496 EUR	coppercost
Resin mass	4.46275 kgr	resinmass
Cost of resin	61.6435 EUR	resincost
Resin volume	3281.43 cm3	ResinVolume
Total mass of one generator rotor	13.4193 kgr	TotalMassRotor
Cost of iron	30.2563 EUR	ironcost
Surface area of moulds	0.556628 m2	woodS
Total cost of moulds	88.17 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-6815.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

1.20m

Aerodynamic coefficient:

0.30

Cut-in wind speed:

5.00m/s

Nominal wind speed:

11.00m/s

Cut-in TSR:

6.50

Design TSR:

4.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

40mm

Magnet width:

20mm

Magnet thickness:

10mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Keyhole

Winding fill factor:

User defined

Winding fill factor:

0.50

Stator thickness:

User defined

Stator thickness:

18mm

Current density:

5.00A/mm2

System Inputs

System voltage:

48.00V

Nominal voltage:

60.00V

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