Oltmanns, Johannes ; Sauerwein, David ; Dammel, Frank ; Stephan, Peter ; Kuhn, Christoph (2020)
Potential for waste heat utilization of hot-water-cooled data centers: A case study.
In: Energy Science & Engineering, 8 (5)
doi: 10.1002/ese3.633
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Abstract The electric energy demand of data centers in Germany has grown rapidly from 10.5 TWh/a in 2010 to 13.2 TWh/a in 2017, an average of 25% of which are used to fulfill the data centers' cooling demand. In order to increase its energy efficiency, TU Darmstadt applies a new cooling concept in the next generation of its high-performance computing data center “Lichtenberg II.” Instead of the current air-cooled servers with water-cooled rear doors at 17-24°C, the new data center will be equipped with direct hot-water cooling for the high-performance computer, supplying heat at a temperature of 45°C. The high-temperature waste heat is used for heating purposes on the university's campus Lichtwiese. For waste heat utilization, two concepts are presented, either integrating the heat in the return line of the district heating network or using it locally in buildings located near the data center. Reductions in CO2 emission and annuity are generated both by decreased compression cooling demand for the data center and by decreased heat generation due to waste heat utilization. Depending on the scenario, a total of 20%-50% of the waste heat emitted by the high-performance computer can be used for heating purposes, while the remaining heat is dissipated efficiently via free cooling without additional energy demand for mechanical chillers. CO2 emission can be decreased by up to 720 , representing a reduction of about 4% of the total emission at campus Lichtwiese. TU Darmstadt is currently implementing the waste heat integration into its district heating network and will benefit from this concept starting in 2020.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Oltmanns, Johannes ; Sauerwein, David ; Dammel, Frank ; Stephan, Peter ; Kuhn, Christoph |
| Art des Eintrags: | Bibliographie |
| Titel: | Potential for waste heat utilization of hot-water-cooled data centers: A case study |
| Sprache: | Englisch |
| Publikationsjahr: | 26 Februar 2020 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energy Science & Engineering |
| Jahrgang/Volume einer Zeitschrift: | 8 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1002/ese3.633 |
| URL / URN: | https://onlinelibrary.wiley.com/doi/abs/10.1002/ese3.633 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Abstract The electric energy demand of data centers in Germany has grown rapidly from 10.5 TWh/a in 2010 to 13.2 TWh/a in 2017, an average of 25% of which are used to fulfill the data centers' cooling demand. In order to increase its energy efficiency, TU Darmstadt applies a new cooling concept in the next generation of its high-performance computing data center “Lichtenberg II.” Instead of the current air-cooled servers with water-cooled rear doors at 17-24°C, the new data center will be equipped with direct hot-water cooling for the high-performance computer, supplying heat at a temperature of 45°C. The high-temperature waste heat is used for heating purposes on the university's campus Lichtwiese. For waste heat utilization, two concepts are presented, either integrating the heat in the return line of the district heating network or using it locally in buildings located near the data center. Reductions in CO2 emission and annuity are generated both by decreased compression cooling demand for the data center and by decreased heat generation due to waste heat utilization. Depending on the scenario, a total of 20%-50% of the waste heat emitted by the high-performance computer can be used for heating purposes, while the remaining heat is dissipated efficiently via free cooling without additional energy demand for mechanical chillers. CO2 emission can be decreased by up to 720 , representing a reduction of about 4% of the total emission at campus Lichtwiese. TU Darmstadt is currently implementing the waste heat integration into its district heating network and will benefit from this concept starting in 2020. |
| Freie Schlagworte: | data center, district heating, high-performance computer, hot-water cooling, waste heat utilization, EnEff Campus LW |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) |
| Hinterlegungsdatum: | 20 Mai 2020 05:59 |
| Letzte Änderung: | 10 Jan 2024 08:38 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Potential for waste heat utilization of hot‐water‐cooled data centers: A case study. (deposited 09 Jan 2024 12:10)
- Potential for waste heat utilization of hot-water-cooled data centers: A case study. (deposited 20 Mai 2020 05:59) [Gegenwärtig angezeigt]
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