Power
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Power |
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As mentioned before, a total power of 1.5MW can be cooled by the mixed water (with heat exchangers systems) in all the cavern (detector + electronic parts).
In terms of air cooling, the margin is not that big.
In the cavern (detector part) the installation already existing can cool down up
to 50kW of dissipated power. This system has to cool down every heat lost by
the racks, we consider a 2% of the total power dissipation inside the rack for
those equipped with 2U heat exchangers and 10% for the racks with 1U heat
exchangers. The cables dissipation has also to be considered for the air cooling
in the cavern.
For more information about the racks :
RacksIndex.htm
about the cables :
CableIndex.htm
In the counting house a local air conditioner is installed in each barracks.
In each level 50kW of power dissipation can be removed. The electronics racks to
be placed in the barracks will be cooled with 2U heat exchangers which means
that the power dissipation in the surroundings will be 2% of the total power of
the racks (from EP/ESS
tests for rack
cooling).
For the PCs, ECS and Switches racks (horizontal air flow) we don't have a precise estimate or measure
of the power loss in the surroundings of the heat exchangers modules that might
be used.
For more information about the racks :
RacksInBarracks.htm
PowerDissipationTable.xls ; Also available in: PowerDissipationTable.pdf
If you have any comments and/or questions about the site's organization or its content don't hesitate to contact me by e-mail.
| This page was last modified by
VB on
August 19, 2003.This
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