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Development of Mechanical Pipe-Connection Design for DEMO

Milushev, Viktor; Azka, Azman; Mittwollen, Martin


Maintenance of the DEMO breeding blanket includes the removal and replacement of plasma-facing components. To access the breeding blanket, multiple coolant pipes need to be removed to allow access to the tokamak. As an option to reduce downtime and increase maintenance speed, the pipe-connection concept is developed to allow the removal of multiple pipes at the same time using a remotely operated mechanical connection. The remotely operated multi-pipe Mechanical Pipe Connection (MPC) needs to fulfil multiple requirements, such as high operating temperature and high external forces while at the same time maintaining an acceptable level of sealing between the high-pressure fluid and vacuum surroundings. In addition to the external conditions, the pipes of multiple sizes and fluids are connected in a manifold configuration. Although this will reduce the overall time required to operate the mechanical pipe connection when compared to multiple single-pipe connections, this will introduce additional forces and stresses due the interaction between pipe flow (e.g., simultaneous high- and low-temperature fluid pipes on the same manifold) through the manifold flange. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000154513
Veröffentlicht am 13.01.2023
DOI: 10.3390/jne4010008
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Fördertechnik und Logistiksysteme (IFL)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2023
Sprache Englisch
Identifikator ISSN: 2673-4362
KITopen-ID: 1000154513
HGF-Programm 31.13.01 (POF IV, LK 01) Ex-Vessel Plant Systems & Engineering
Erschienen in Journal of Nuclear Engineering
Verlag MDPI
Band 4
Heft 1
Seiten 111–126
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 11.01.2023
Schlagwörter DEMO; mechanical pipe connection; maintenance; numerical analysis
Nachgewiesen in Dimensions
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