Keppel Data Centres is now part of a project that aims to reuse cold energy from LNG (Liquefied Natural Gas) re-gasification process for data center cooling.
Targeting Singapore’s LNG terminal – Keppel, the National University of Singapore (NUS), and Singapore LNG Corporation (SLNG) will collaborate to develop a new cooling technology that can potentially help data centers in Singapore to improve their PUE by as much as 20 percent.
This concept is tied to the fact that LNG is cooled down to liquid form for ease of storage and transportation. To convert it back to natural gas for use, the re-gasification process is invoked and cold energy is generated. According to the project proposal, the generated cold energy can be harnessed to offset the cooling demands of data centers.
A five-member team has being formed from the three parties to jointly develop a prototype of a new cooling medium to efficiently store and carry this cold energy from the Singapore LNG Terminal to various data centers in Singapore, as well as the requisite infrastructure to leverage it for effective cooling.
The team will explore the use of a water-based phase-change fluid as thermal energy carriers to replace chilled water as a cooling medium. With a thermal density two to five times higher than chilled water, it is also expected that this will reduce the amount of water and power required to cool data centers.
The project is supported by the Singapore government’s National Research Foundation under its Green Data Centre Research Programme.
A process prototype with a capacity of one ton a day is expected to be designed, built and operated for demonstration by 2022 at NUS.