Propel-E 100 | Online Design Tools for Locally Manufactured Small Wind Turbines

Submitted by fromwastetowind on Mon, 07/10/2024 - 17:33

Duration:

00:02:06

Tabs

Results

Blade Rotor Outputs
Property	Value	Variable name
RPM at the cut-in wind speed (TSR)	159.236 RPM	n_cut_in
RPM at the nominal wind speed (TSR)	481.181 RPM	n_nom
Nominal tip speed ratio	5.03636	tsr_nom

Generator Rotor Outputs
Property	Value	Variable name
Rotor disk thickness	10 mm	hr
Magnet width-to-pole pitch ratio	0.497437	ai
Inner-to-outer magnet radius	0.438139	kd
Flux density in airgap	0.265971 T	Bmax
Flux density on magnet surface	0.261247 T	Bmg
First harmonic of flux density in airgap	0.222648 T	Bp
Flux per pole (Calculated)	0.00138044 Wb	Flux_pole
Magnets on a rotor disk	4	magnet_num
Distance between magnets	15.7435 mm	dist_magnet_Rin
Magnet mass	6860 g	MagnetMass
Magnet density	5 g/cm3	mag_density
Volume of a single magnet	171500 mm3	Vmag
Volume of all magnets	1372000 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	258.818 mm	Dout
Average radius	89.586 mm	Ravg
Inner radius	54.586 mm	Rin
Outer radius	129.409 mm	Rout
Effective outer radius	124.586 mm	Rout_eff
Mass of rotor disks	8.281 kgr	BackIronMass
Volume of rotor disks	1052.22 cm3	BackIronVolume
Maximum flux density in the magnet rotor disk	1.08431 T	SaturMAX
Is the magnet rotor disk saturated?	No	Saturation

Generator Stator Outputs
Property	Value	Variable name
Stator thickness	16 mm	tw
Number of phases	3	nphase
Number of coils per phase	1	q
Total number of coils in stator	3	coil_num
Number of turns per coil	664	Nc
Copper wire diameter	0.71 mm	dc
Number of wires at hand	1	No_wires_at_hand
Winding fill factor	0.75	kf
Copper wire cross-sectional area	0.4 mm2	sc
Copper wire cross-sectional area (Calculated)	0.34994 mm²	sc_theor
Copper wire cross-sectional area of a sinlge wire	0.4 mm²	sc_multi_wires
Copper wire diameter (Calculated)	0.66767 mm	dc_theor
Coil leg width	22.1333 mm	wc
Average length of coil turn	349.499 mm	lavg
Stator nominal temperature	105.229 C°	tc_real
Stator surface area	464.134 cm²	stator_surface_area
Heat coefficient	0.378617	cq_real
Current density	5.2491 A	Jmax_real
Resistivity of copper at nominal temperature	2.29023E-8 Ohm.m	pt
Resistance of a single coil	13.2872 Ohm	Rc
Phase resistance	13.2872 Ohm	Rphase
Phase inductance	0.0621229 H	Ls
Nagaoka constant	0.184563	Kn
Winding coefficient	0.95	kw
Volume of a single coil	123769 mm3	coil_volume
Weight of a single coil	832.372 g	coil_weight_constr
Coil hole at Ravg	70 mm	coil_hole_Ravg
Coil hole at Rin	70 mm	coil_hole_Rin_constr
Coil hole at Rout	70 mm	coil_hole_Rout_constr
Coil mass for construction	3.32949 kgr	mcu_constr
EMF at the cut-in wind speed (Calculated)	20.528 V	EMF_cut_in
EMF at the nominal wind speed (Calculated)	62.0213 V	EMF_nom
Current at the nominal wind speed	2.09964 A	Iac_nom
Terminal voltage at the nominal wind speed	30.1077 V	V_term_line
Nominal frequency	16.0394 Hz	fnom
Generator power (Calculated)	189.646 W	Pnom
Copper losses (Calculated)	175.729 W	Pcopper
Eddy current losses (Calculated)	0.0598034 W	Peddy
Generator efficiency (Calculated)	0.492695	efficiency_real
AC Power at the rectifier (Calculated)	170.682 W	Pnom_rect
DC Power at the batteries (Calculated)	153.613 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)	19.4813 W	Prot

Costs, Mass and Volume
Property	Value	Variable name
Total generator cost	219.008 EUR	Totalcost
Total generator mass	19.2781 kgr	TotalMass
Total generator volume	5.89246 dm3	TotalVolume
Blade rotor mass	1.39353 kgr	blade_rotor_mass
Softwood density	500 kgr/m³	softwood_density
Cost of magnets	99.8542 EUR	Magcost
Magnet shipping cost	82.8502 EUR	shippingcost
Copper mass	2.48962 kgr	mcu
Cost of copper	36.7467 EUR	coppercost
Resin mass	1.64749 kgr	resinmass
Cost of resin	22.7566 EUR	resincost
Resin volume	1211.39 cm3	ResinVolume
Total mass of one generator rotor	7.5705 kgr	TotalMassRotor
Cost of iron	10.1856 EUR	ironcost
Surface area of moulds	0.312277 m2	woodS
Total cost of moulds	49.4647 EUR	woodcost

Output files

Octave/Matlab variable file:

simulation-9521.mat

Input parameters

Blade Rotor Inputs

Turbine radius:

0.90m

Aerodynamic coefficient:

0.35

Cut-in wind speed:

3.00m/s

Nominal wind speed:

9.00m/s

Cut-in TSR:

5.00

Design TSR:

6.00

Air density:

1.204kg/m³

Generator Rotor Inputs

AFPM rotor topology:

Double Rotor

Magnetic material:

Ferrite C8

Number of generator poles:

Magnet length:

70mm

Magnet width:

70mm

Magnet thickness:

35mm

Rotor disk thickness:

User Defined

Rotor disk thickness:

10mm

Mechanical clearance:

3.00mm

Generator Stator Inputs

Select coil type:

Rectangular

Winding fill factor:

User defined

Winding fill factor:

0.75

Stator thickness:

Calculated

Current density:

6.00A/mm2

System Inputs

System voltage:

48.00V

Nominal voltage:

64.00V

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