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Blades-in turbine inspections at Quad Cities set new benchmark for Constellation
When Constellation decided to install replacement Alstom low-pressure turbines at three of its boiling water reactor plants more than 15 years ago, one benefit was knowing the new turbines should operate reliably—and without major inspections—for several years.
Masayuki Yokoyama, Yuji Nakamura, Masahiro Wakatani
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 186-189
Helical Systems | doi.org/10.13182/FST95-A11947065
Articles are hosted by Taylor and Francis Online.
A new helical axis stellarator called Helias-Heliac Hybrid Stellarator(HHHS) is based on the modulated l = 1 helical coil. In order to obtain Helias-like and Heliac-like configurations, toroidal coils, poloidal coils and an additional l = 1 helical coil are adjusted to control magnetic field spectrum. It is shown that the bumpy field with opposite sign to l = 1 helical field is essential to minimize the neoclassical ripple transport. An HHHS configuration with sufficient magnetic well and reduced neoclassical ripple transport is demonstrated.