Solar Car: Difference between revisions
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*Tokai Challenger - 62 mph average for Solar Challenge - 1.8 kW PV array, 30% efficient, 352 lbs, 16'7" by 5'5" - [https://en.wikipedia.org/wiki/Tokai_Challenger]. 90 square feet of area. | *Tokai Challenger - 62 mph average for Solar Challenge Winner- 1.8 kW PV array, 30% efficient, 352 lbs, 16'7" by 5'5" - [https://en.wikipedia.org/wiki/Tokai_Challenger]. 90 square feet of area. | ||
*Increase that to 24 feet long x 8 feet wide (192 square feet) (2 kw) - like a trailer - to double the area. Use non-exotic solar panels to keep cost reasonable with solar. Add 20 kg of lithium ion batteries for 4 kWhr [https://en.wikipedia.org/wiki/Lithium-ion_battery] of power, and a small backup engine (2kW) - for one hour of up to | *Increase that to 24 feet long x 8 feet wide (192 square feet) (2 kw) - like a trailer - to double the area. Use non-exotic solar panels to keep cost reasonable with solar. Add 20 kg of lithium ion batteries for 4 kWhr [https://en.wikipedia.org/wiki/Lithium-ion_battery] of power, and a small backup engine (2kW) - for one hour of up to | ||
*PV panels - 1650x990 cm is 17.5 sf. See slide 12 of [[Open_Source_PV_System#Initial]] | *PV panels - 1650x990 cm is 17.5 sf. See slide 12 of [[Open_Source_PV_System#Initial]] | ||
Revision as of 01:33, 11 February 2018
- Tokai Challenger - 62 mph average for Solar Challenge Winner- 1.8 kW PV array, 30% efficient, 352 lbs, 16'7" by 5'5" - [1]. 90 square feet of area.
- Increase that to 24 feet long x 8 feet wide (192 square feet) (2 kw) - like a trailer - to double the area. Use non-exotic solar panels to keep cost reasonable with solar. Add 20 kg of lithium ion batteries for 4 kWhr [2] of power, and a small backup engine (2kW) - for one hour of up to
- PV panels - 1650x990 cm is 17.5 sf. See slide 12 of Open_Source_PV_System#Initial
- 11 of these panels fit on the 192 sf area. Each is 285 watts for 3100 W total. Under normal conditions - power should be 1.5kW. If we double that with an internal combustion engine for 3-4kW - we are pretty good to go for sppeed.
- The main challenge in using Open_Source_PV_System#Initial PV panels is that they weigh 19kG each - so 209 kg total. That is 460lb already. Small engine would be 5 lb, and batteries at 44 lb - with frame + drive at 240 more lbs. That makes for a 750 lb vehicle.
- Can we get frame to within 240 lb? Yes, with carbon fiber composites. But aluminum would be tough. Suggestion: 3D printed frame as skeleton for carbon fiber layup.