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Heat reuse models for liquid cooled data centers integrated with district heating

Published: 17 November 2021 Publication History

Abstract

In this paper we address the problem of modeling and estimating the heat reuse potential of liquid cooled Data Centers (DCs) integrated with local heat distribution system infrastructures and utilities. We provide an abstract mathematical model based on a system-of-systems methodology for representing the heat exchanges between IT equipment and thermal tanks. The behavior of the identified subsystems is modelled mathematically based on thermodynamic equations and physical processes involved in heat exchanges. The models are evaluated on an experimental platform consisting of two liquid-cooled processing units that heat an insulated recipient equipped with temperature sensors, showing a temperature prediction MAPE of 7%. Furthermore, a set of use cases evaluating the heat reuse capability in a residential setup as well as an interior pool heating are presented, showing high potential of heat recycling from IT equipment with liquid cooling systems and the possibility of heating a home with 9 processing units of 210 W power or a pool of size 30 m3 with a set of 100 processing units of 210 W.

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  • (2022)VECTORProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/35503366:3(1-28)Online publication date: 7-Sep-2022

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      cover image ACM Conferences
      BuildSys '21: Proceedings of the 8th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation
      November 2021
      388 pages
      ISBN:9781450391146
      DOI:10.1145/3486611
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 17 November 2021

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      Author Tags

      1. data center
      2. liquid cooling
      3. optimization
      4. simulation
      5. system-of-systems

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      • Romanian Ministry of Education and Research, CNCS?UEFISCDI

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      BuildSys '21 Paper Acceptance Rate 28 of 107 submissions, 26%;
      Overall Acceptance Rate 148 of 500 submissions, 30%

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      • (2022)VECTORProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/35503366:3(1-28)Online publication date: 7-Sep-2022

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