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*** For immediate use September 3, 2013
Tokyo, September 3, 2013 - NEC Corporation (NEC; TSE: 6701) announced today the development of highly efficient, multi-stage cooling technology that effectively removes the heat generated by ICT equipment mounted on racks installed in data centers. Use of this new technology enables data centers to reduce air conditioning power consumption by up to 50%.
This new, multi-stage cooling technology applies phase change cooling technology (*1)-a technology previously developed by NEC that can be installed in ICT devices to achieve efficient cooling-to racks on which multiple ICT devices are mounted. Phase change cooling technology is based on the nature of a coolant that removes a large amount of heat when turning from liquid to vapor and therefore allows efficient cooling.
This new technology is able to substantially reduce the air conditioning load inside server rooms because the heat from devices is collected before dispersed and is transported directly to the outside of the server room. In the case of a server room in which power consumption per rack is 12kW, total air conditioning power consumption (i.e. power consumed by fans and cooling machines) can be reduced by as much as 50%. Recent tests conducted at an NEC facility with 10 servers demonstrated that approximately 50% of the heat exhausted from the back of a rack was transported to the outside of the server room.
Applying this technology, data center operators are able to significantly increase the number of ICT devices they mount on racks without raising the air conditioning power. This also allows data centers to substantially improve their processing abilities without having to increase their floor area, as well as to achieve space-saving data center operations.
Key features of the newly developed technology are as follows:
*1) A cooling technology that utilizes a phenomenon in which the movement of a large amount of heat occurs due to a phase change that happens when a coolant changes from liquid to vapor or from vapor to liquid. For example, the coolness you feel when a nurse disinfects your arm with alcohol before taking a blood sample is caused by your skin being deprived of heat as the alcohol evaporates.
*2) NEC Group Environmental Management Action Plan 2017/2030
http://www.nec.com/en/global/eco/policy/20172030/index.html
About NEC Corporation
NEC Corporation is a leader in the integration of IT and network technologies that benefit businesses and people around the world. By providing a combination of products and solutions that cross utilize the company's experience and global resources, NEC's advanced technologies meet the complex and ever-changing needs of its customers. NEC brings more than 100 years of expertise in technological innovation to empower people, businesses and society. For more information, visit NEC at http://www.nec.com.
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