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Energy Heat Harvesting from Server Racks with heatpipe technology Disclosure Number: IPCOM000236472D
Publication Date: 2014-Apr-29
Document File: 3 page(s) / 615K

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Energy Heat Harvesting from Server Racks with heatpipe technology.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 83% of the total text.

Page 01 of 3

In a normal server centre the cooling is accomplished with air conditioning.

In a full server rack a temperature difference (input air temperature to output air temperature) of around 15 to 20 degrees C is produced. (Figure1)

Page 02 of 3

To achieve this high output temperature difference we use a modular air heat exchanger at the rear side of the server rack.

To be sure to gain all the energy we use an aero shutter between the heat exchanger and the rear door. (Figure2)

When the system is in operation the aero shutter is closed and the airflow goes through the heat exchanger, leaving the server rack on the top rear side.

The physical airflow is supported with two large temperature controlled Fans. The diameter of the fans should be 20 or 25 cm.

During a power outage the aero shutter opens automatically and the normal airflow way is used (server rack front in and back out).

The air heat exchanger is a modular system that is stackable. Each heat exchanger module has 4U/HE. Modules can be plugged together, and are mounted inside on the rear door of a server rack.

The collected heat should transported with heat pipes (from 1 to 4) from the top heat exchanger in the rack, to a collector which is mounted below the ceiling.

The collector is organized as an array of rows and or columns.

Page 03 of 3

The collector uses water as a medium to transfer the heat out of the server centre to heat a low temperature mass storage in the facility heat system, for example an underf...