Oltmanns, Johannes ; Sauerwein, David ; Dammel, Frank ; Stephan, Peter ; Kuhn, Christoph (2024)
Potential for waste heat utilization of hot‐water‐cooled data centers: A case study.
In: Energy Science & Engineering, 2020, 8 (5)
doi: 10.26083/tuprints-00016187
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (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 tCO₂/a, 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: | 2024 |
| Autor(en): | Oltmanns, Johannes ; Sauerwein, David ; Dammel, Frank ; Stephan, Peter ; Kuhn, Christoph |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Potential for waste heat utilization of hot‐water‐cooled data centers: A case study |
| Sprache: | Englisch |
| Publikationsjahr: | 9 Januar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2020 |
| Ort der Erstveröffentlichung: | Chichester |
| Verlag: | John Wiley & Sons |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energy Science & Engineering |
| Jahrgang/Volume einer Zeitschrift: | 8 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.26083/tuprints-00016187 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/16187 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (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 tCO₂/a, 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 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-161875 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 300 Sozialwissenschaften > 333.7 Natürliche Ressourcen, Energie und Umwelt 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 600 Technik, Medizin, angewandte Wissenschaften > 624 Ingenieurbau und Umwelttechnik 700 Künste und Unterhaltung > 720 Architektur |
| Fachbereich(e)/-gebiet(e): | 15 Fachbereich Architektur 15 Fachbereich Architektur > Fachgruppe F: Gebäudetechnik 15 Fachbereich Architektur > Fachgruppe F: Gebäudetechnik > Entwerfen und nachhaltiges Bauen 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) Exzellenzinitiative Exzellenzinitiative > Graduiertenschulen Exzellenzinitiative > Graduiertenschulen > Graduate School of Energy Science and Engineering (ESE) |
| Hinterlegungsdatum: | 09 Jan 2024 12:10 |
| Letzte Änderung: | 10 Jan 2024 08:36 |
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| Zugehörige Links: | |
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| Suche nach Titel in: | TUfind oder in Google |
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- Potential for waste heat utilization of hot‐water‐cooled data centers: A case study. (deposited 09 Jan 2024 12:10) [Gegenwärtig angezeigt]
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