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Logs experimentations
- November 18Th 2018 - sunny
temp inside tube 9:0 AM: -6,0C / outside temp: -12,0C - 3 cm of snow cover to nothing
Conclusion: delta +6C - horizontal + vertical rotation OK! - add more snow

- November 17Th 2018 - cloudy average 0C
temp inside tube 8:0 AM: +3,3C / outside temp: -1,1C - 5 cm of snow cover
Conclusion: delta +4C - the horizontal rotation system should be burried under ground (50cm) and air injected in glass collector from this cavity - also may be add a little electrical heating system controlled by thermostat.

- November 15Th 2018 - cloudy average -8C
Test heating system in the tube to prevent water inside collector form freezing (air is injected with a computer fan) - temp inside tube 8:0 AM: -8C / outside temp: -15C
Conclusion: delta +7-8C from a compost pile of leaves - wait for the snow cover for better insulation

- October 26Th 2018 - addition of a basic heating system (air injected at 5C from the ground) to prevent water from freezing.
Measure 7:30 morning - outside -5C - wind:0 km/h sunny - air inside tube +2,5C - no measure of water temp.
Conclusion: +2,5C in the tube => good results with +5C heated air injected - may be no glycol needed because vaccuum should improve those results.

- October 19Th 2018 - no utilisation of water for all day -
Measure 5:30 afternoon - outside 16C - wind:30km/h sunny - air inside tube 25C - no measure of water temp inside the coil - tap water temp 14C.

- October 18Th 2018 - automatic tracking OK! - no utilisation of water for all day.
measurement taken at 5:30 o'clock - outside temp 2C wind: 30km/h sunny. Air inside tube 8,8C - no measure of water temp.
Conclusion: build a longer coil + vaccuum to store more energy outside for use when needed. 2 axis tracking is done deal!.

- October 17Th 2018 - automatic tracking rotation vertical + horizontal OK! - no use of water for all day.
measurement taken at 5:30 o'clock - outside temp 6C wind: 30km/h sunny + very litte cloud afternoon - cloudy morning
air inside tube 14C - no measure of temp water freeze warning.
Conclusion: Energy is well stored in the coil (+8C compared to outside temp), need to build a longer coil + vaccuum to store more energy outside for use when we need it.

- September 28Th 2018 - automatic rotation with tracker rotation vertical + horizontal OK! IPT: power divided by two (because half of inox plate in the shade)- no utilisation of water for all day - measures taken at 5 o'clock
4l at 43C - 4l at 38C - 4l at 31C - 4l at 28C - 4l at 28C - 4l at 26C / increase 19C to 24C permanently sunny with some litte clouds all day outside temp 17-21C wind-gust: 10km/h / test recharge 15 minutes recharge at 28C - flow is 1 liter per minute
Conclusion: we have got more hot water for longer if water stays roughly 30 minutes in the coil to heat up when it is sunny beacause heat is probably stored in the copper.

- September 27Th 2018 - automatic rotation with tracker rotation vertical + horizontal OK! IPT: power divided by two (because half of inox plate in the shade)- no utilisation of water for all day - 5 o'clock
5 liters from 19C to 25C - flow is 1 liter per minute - sunny with some clouds all day outside temp 17C wind: 0km/h
Conclusion: water in coils needs to be used or else it looses quickly heat - Solution: vaccuum in the tube or storage when not used.

- September 26Th 2018 - automatic rotation vertical + horizontal OK! with new aluminium plate 1,4m + new lazy suzan IPT: power divided by two (because half of inox plate in the shade)
10C increase every 10 minutes ex: 20C 4 liters after 10minutes 30C 4 liters. Temperature 15C - 4'oclock in the afternoon - partially cloudy
outside temp 13C wind: 0km/h. Conclusion: coils can recharge quickly.

- March 2017 - Storm - wind up to 90km/h - inclination +15 Degrees from horizontal - Conclusion: It was very impressive - It resisted because the mass of the cylinder (copper collector) is shifted from the center of gravity a bit. So like a windsurfer it counterbalances the wind gusts with the weight!
and comes back quickly to equilibrium position, therefore the kinetic energy from the wind is blocked and
it is transferred in torsion into the 2 columns!! It is amazing!!