Fluid flow and heat transfer of a novel passive cooling system for gearless wind turbines with a power range of 3–12 MW

  • Today, the gearless horizontal axis wind turbines are mainstream in wind energy industry. High demands of electric power led to bigger systems and active cooling reduces the overall efficiency of the turbines. Passive cooling systems have been examined for the first time for a gearless wind energy generator with power range of 3–12 MW. With further developed heat conductors, it is possible to operate a wind generator in a larger power class with passive cooling components. This is accompanied by enormous cost savings due to elimination of costs for active cooling elements such as the use of fans, pumps, and heat exchangers. An additional factor is the significant reduction in necessary maintenance due to the minimized incidence of corrosion and wear. Design of the cooling fins and an ideal position of the generator within the housing of the wind turbine has been objectives. Mandatory is that maximum temperatures of the generator fins should stay under 155 °C, which could be reachedToday, the gearless horizontal axis wind turbines are mainstream in wind energy industry. High demands of electric power led to bigger systems and active cooling reduces the overall efficiency of the turbines. Passive cooling systems have been examined for the first time for a gearless wind energy generator with power range of 3–12 MW. With further developed heat conductors, it is possible to operate a wind generator in a larger power class with passive cooling components. This is accompanied by enormous cost savings due to elimination of costs for active cooling elements such as the use of fans, pumps, and heat exchangers. An additional factor is the significant reduction in necessary maintenance due to the minimized incidence of corrosion and wear. Design of the cooling fins and an ideal position of the generator within the housing of the wind turbine has been objectives. Mandatory is that maximum temperatures of the generator fins should stay under 155 °C, which could be reached with several designs for different heat exchanger geometries.show moreshow less

Download full text files

Export metadata

Metadaten
Author:Frank Ulrich RückertORCiD, Burhan Ibrar, Arslan AhmedORCiD, Benjamin Allweyer, Dirk Hübner, Friedrich Klinger, Hermann Knaus, Ali Cemal BenimORCiD
Qualitätssicherung:peer reviewed
open access:Hybrid - Subskriptionszeitschrift
Fachbereich/Einrichtung:Hochschule Düsseldorf / Fachbereich - Maschinenbau und Verfahrenstechnik
Document Type:Article
Year of Completion:2024
Language of Publication:English
Publisher:Elsevier
Parent Title (English):Energy
Volume:312
Article Number:133478
URN:urn:nbn:de:hbz:due62-opus-46594
DOI:https://doi.org/10.1016/j.energy.2024.133478
ISSN:0360-5442
Tag:Gearless wind turbine; Passive cooling
GND Keyword:Windturbine; Wärmeübertragung; Numerische Strömungssimulation; Generator; Kühlung
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International
Release Date:2024/10/28
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.