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Real Door Cooling Optimization

IP.com Disclosure Number: IPCOM000236089D
Publication Date: 2014-Apr-04
Document File: 2 page(s) / 78K

Publishing Venue

The IP.com Prior Art Database

Abstract

Most of the time, the water coming out from the Rear Hot Heat Exchanger returning to the Water Cooling Units is not hot but lukewarm. The efficiency of the cooling unit is then not maximalize. The present publication discloses an original and innovative solution to reuse the water coming out from the RDHX before sending it to the Water Cooling Unit for cooling.

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Real Door Cooling Optimization

In a water cooled Data Center the water going out from servers are not always at the optimum temperature and should not need to be cooled. The core idea is to add an apparatus between the cooling until and the door which will optimized the water to be cooled, derivation the "hot" water into the cold circuit (see fig. 1 & 2).

Temperature probes are implemented in the DHX cold input and hot output, checking the temperature limits which have been provided. A smart box is implemented at the rack or door level managing the water going in and out from the door. All the smart boxes can be linked in order to manage all the doors. Start hypothesis:

· Cold water is coming from the Water Cooling Unit in the Rear Door Heat Exchanger.

· Hot water is returning to the Water Cooling Unit from the Rear Door Heat Exchanger.


· Temperature limit of the cold water must be lower than 17°C
· Optimizer is on.

· Electronic valve is off (all the water is going back to the Water Cooling Unit).

  Optimizer Algorithm:
If the temperature detected in the cold corridor is lower than 18°C

· Open totally the dynamic valve. The water is not cooled (save energy) and return to the rear door hit exchanger

Else If the temperature detected in the cold corridor is in between 18°C and 32°C · Open partially the dynamic valve. Some of the water is not cooled (save energy) and mixed with cold one before returning to the rear door hit exchanger (see below Optimizer tabl...