Kostas Latoufis: Difference between revisions
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*30 cm diameter, disk, steel | *30 cm diameter, disk, steel | ||
*RPM at 10 m/s 400 rpm | *RPM at 10 m/s 400 rpm | ||
*need thickness so you don't saturate the iron | *need back iron thickness so you don't saturate the iron | ||
*Permanent deflection happens for larger | *Permanent deflection of back iron happens for larger | ||
*1200 kwh 5m/s. about 3 kwhr/day | *1200 kwh 5m/s. about 3 kwhr/day | ||
*Equivalent to a 500W solar array | *Equivalent to a 500W solar array but depends on mean wind speed | ||
*30% efficiency wind to batteries, not including charging loss of batteries. | *30% efficiency wind to batteries, not including charging loss of batteries. | ||
*Generator designs are 87% and down to 80% as power increases. Need more magnets, then need less copper in stator. | *Generator designs are about 87% efficient and down to 80% as power increases. Need more magnets to increase efficiency, then need less copper in stator. | ||
*Direct connect to battery - no maximum power point tracking | *Direct connect to battery - no maximum power point tracking | ||
*To connect to existing system - 300 Euro for tower/guy wires/concrete if necessary if no big rocks. 100Euro for cable. Diversion charge controller - goes to a resistor if too much - 250 euro - and resistor is $250 euro. Resistor is a thin wire wound around a metal cylinder for good heat dissipation. Surge power of 1kW of resistor. | *To connect to existing system - 300 Euro for tower/guy wires/concrete if necessary if no big rocks. 100Euro for cable. Diversion charge controller - goes to a resistor if too much - 250 euro - and resistor is $250 euro. Resistor is a thin wire wound around a metal cylinder for good heat dissipation. Surge power of 1kW of resistor. | ||
| Line 15: | Line 15: | ||
*No iron core for | *No iron core for | ||
*Powdered iron mixed in the resin - so you concentrate electric field in the core. For same amount of magnet, get more power. Typically lower efficiency when you have a core, but higher power density. With core, may be down to 75% efficient. | *Powdered iron mixed in the resin - so you concentrate electric field in the core. For same amount of magnet, get more power. Typically lower efficiency when you have a core, but higher power density. With core, may be down to 75% efficient. | ||
*Core generator | *Core generator might need external cooling - fan on rotor. | ||
*Coreless is more expensive | *Coreless is more expensive | ||
*Similar to [http://www.ginlong.com/en/Wind_Products/GL_PMG_500A.html] - larger ones - [http://www.ginlong.com/en/PMG.html]. 760 kg for 30kw. | *Similar to [http://www.ginlong.com/en/Wind_Products/GL_PMG_500A.html] - larger ones - [http://www.ginlong.com/en/PMG.html]. 760 kg for 30kw. | ||
*ST generator head - 20kw - 365 lb -- $800 - http://www.ebay.com/itm/20KW-ST-Generator-Head-1-Phase-for-Diesel-or-Gas-Engine-60Hz-/331914210831. Compare to 585 lb for radial flux - http://www.ginlong.com/en/Wind_Products/GL_PMG_20K.html | *ST generator head - 20kw - 365 lb -- $800 - http://www.ebay.com/itm/20KW-ST-Generator-Head-1-Phase-for-Diesel-or-Gas-Engine-60Hz-/331914210831. Compare to 585 lb for radial flux - http://www.ginlong.com/en/Wind_Products/GL_PMG_20K.html | ||
*[http://www.cgg1.com/ST%202-bearing%20120-240V.htm] - | *[http://www.cgg1.com/ST%202-bearing%20120-240V.htm] - | ||
*Hugh - it works, | *Hugh - it works well, needs few days to be built, building a wind turbine in one day is the next step. | ||
*Hydro turbine - Turgorunner open source design, 3d printed runners. There's a guy in the USA who does turbine work. | *Hydro turbine - Turgorunner open source design, 3d printed runners. There's a guy in the USA who does turbine work. | ||
*What are the collaborative design tools. | *What are the collaborative design tools. | ||
*Max in Germany makes blades in 2 hours. He is a fun guy. | *Max in Germany makes blades in 2 hours. He is a fun guy. | ||
Latest revision as of 18:41, 28 August 2016
- 800 euro - 2.4m diameter rotor - 600W maximum 10m/s. 5 m/s has around - 110 Watts +/-20W
- Axial flux design
- 30 cm diameter, disk, steel
- RPM at 10 m/s 400 rpm
- need back iron thickness so you don't saturate the iron
- Permanent deflection of back iron happens for larger
- 1200 kwh 5m/s. about 3 kwhr/day
- Equivalent to a 500W solar array but depends on mean wind speed
- 30% efficiency wind to batteries, not including charging loss of batteries.
- Generator designs are about 87% efficient and down to 80% as power increases. Need more magnets to increase efficiency, then need less copper in stator.
- Direct connect to battery - no maximum power point tracking
- To connect to existing system - 300 Euro for tower/guy wires/concrete if necessary if no big rocks. 100Euro for cable. Diversion charge controller - goes to a resistor if too much - 250 euro - and resistor is $250 euro. Resistor is a thin wire wound around a metal cylinder for good heat dissipation. Surge power of 1kW of resistor.
- Solar panels - just mounting structure + charge controller - $100
- Magnets themselves cost - 10 euro per piece - need 24. 5 euro in bulk - 100 MOQ.
- No iron core for
- Powdered iron mixed in the resin - so you concentrate electric field in the core. For same amount of magnet, get more power. Typically lower efficiency when you have a core, but higher power density. With core, may be down to 75% efficient.
- Core generator might need external cooling - fan on rotor.
- Coreless is more expensive
- Similar to [1] - larger ones - [2]. 760 kg for 30kw.
- ST generator head - 20kw - 365 lb -- $800 - http://www.ebay.com/itm/20KW-ST-Generator-Head-1-Phase-for-Diesel-or-Gas-Engine-60Hz-/331914210831. Compare to 585 lb for radial flux - http://www.ginlong.com/en/Wind_Products/GL_PMG_20K.html
- [3] -
- Hugh - it works well, needs few days to be built, building a wind turbine in one day is the next step.
- Hydro turbine - Turgorunner open source design, 3d printed runners. There's a guy in the USA who does turbine work.
- What are the collaborative design tools.
- Max in Germany makes blades in 2 hours. He is a fun guy.