Ch. Servais, Ph. Demoulin, O. Flock, Ch. Servais, Ph. Demoulin, O. Flock, G. Buntinx, J.
G. Buntinx, J. BosseloirsBosseloirs, V. Vandeweerdt, V. Vandeweerdt
A remotely actuated
A remotely actuated
suntracker protection for
suntracker protection for
harsh environmental
harsh environmental
conditions.
conditions.
Objectives
•
• Suppress manual operation of the lid that Suppress manual operation of the lid that is somewhat difficult and dangerous when is somewhat difficult and dangerous when it is out of balance because of the wind or it is out of balance because of the wind or
ice accumulation. ice accumulation. •
• Control the opening from anywhere if Control the opening from anywhere if possible.
possible. •
• (Avoid going outside in the wind and cold (Avoid going outside in the wind and cold to open or close the lid.)
Problems
• Ice and snow may accumulate on
the lid, in the openings, on the moving parts… anywhere.
• Ice, snow and water may fall
(understand: fly) from anywhere.
• The refreezing water may glue the
lid edges together, hold the lid to the ground or fill spaces that
should remain empty.
• Water may cause short circuits.
• Temperatures down to -35°C and
wind up to 150km/H when in use.
More problems…
•
• Lightning proofLightning proof •
• Not much room inside for moving partsNot much room inside for moving parts •
• Safe : hydraulics can be destructive Safe : hydraulics can be destructive
and dangerous
and dangerous →→ lots of protectionslots of protections
•
• Reliable : 5 operation modes from Reliable : 5 operation modes from
totally manual to full automatic
totally manual to full automatic
•
• Very precise realVery precise real--time statustime status •
• Not too expensiveNot too expensive •
More problems…
•
• Lightning proofLightning proof •
• Not much room inside for moving partsNot much room inside for moving parts •
• Safe : hydraulics can be destructive Safe : hydraulics can be destructive
and dangerous
and dangerous →→ lots of protectionslots of protections
•
• Reliable : 5 operation modes from Reliable : 5 operation modes from
totally manual to full automatic
totally manual to full automatic
•
• Very precise realVery precise real--time statustime status •
• Not too expensiveNot too expensive •
14 P 60 bar 17 B 4540 AMAY B 2870 BREENDONK L 1470 LUXEMBOURG +32 85.51.96.96 FLUITRONICS 2701109 ULG04/1107833 ULG DUBOIS A. 02/09/04 . SERVAIS Ch. . .
GROUPE HYDRAULIQUE JUNGFRAUJOCH
PROJET Réf. FLUITRONICS Réf. CLIENT CLIENT 5765-S N° PLAN . 1 ECHELLE REVISION DESSINE PAR APPROUVE PAR VERIFIE PAR 23 24 22 T2 T1 A B 15 A B 15 A B 15 A B 15 16 16 16 16 26 18 25 27 18 28 29 33 30 31 33 32 13 12 11 T2 T1 P 1 20 I P 1, 5 L/ min 0,55kWM 10 9 6 8 7 4 5 21 3 2
M
M
M
ACT1 ACT2 ACT3 ACT4 LOCK
ACT5 A1POS A12POS A3POS A4POS A5POS A6POS EDGEPOS3 Tamb TEDGE TLID R/S/T SUNTRK INT1 EXT INT2 LIGHT REMOTE / STATUS
LAMP PLUG BUZZER R/S/T LID HEATERS EDGE HEATERS EDGEPOS4 ACT6 A6LIM FLIM PUMP PRES PLIM A5LIM 287 nets USB USB RJ45 USB LOCKLIM EDGE EXCHANGE MAIN EXCHANGE CONTROL 12 Valves Inside Outside R/S/T Internet
Conclusions
•
• Remotely controlling the protection cover of Remotely controlling the protection cover of
a large suntracker at a high altitude site is a
a large suntracker at a high altitude site is a
very complex task that only looks simple.
very complex task that only looks simple. •
• Hydraulic solutions are powerful but require Hydraulic solutions are powerful but require
additional security features to avoid
additional security features to avoid
endangering people or equipment.
endangering people or equipment. •
• The proposed solution is relatively complex The proposed solution is relatively complex
but provides very good reliability as well as
but provides very good reliability as well as
precise remote control capability inside our
precise remote control capability inside our
new observation framework.
new observation framework.
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