Systems code comparison of internal and external PF coil CITs
Conference
·
OSTI ID:1024754
- ORNL
Systems studies are performed to examine the tradeoffs of placing the poloidal field (PF) coils external to the toroidal field (TF) coils or internal to the TF coils in Compact Ignition Tokamaks (CITs). This study compares the size requirements for itnernal and extenral PF CIT options having the same performance levels and compares the performance capabilities of internal and extenral CITs of the same size. They find that the internal PF systems are slightly smaller (about 5 cm) than comparable-performance extenral PF CITs. The primary difference in the radial builds of the internal and external CITs results from the movement of the ohmic heating (OH) solenoid. At the same major radius, the all-internal PF case can achieve about 10% larger field on axis (B) levels (a physics performance parameter) than the external PF CIT. The power supply requirements are similar for the internal and external cases with equivalent performance. However, for the internal PF CIT, the power supply requirements are dominated by the TF coild (90%), whereas for the external PF coil case, the TF and PF coil circuits have roughly equal contributions to the power supply requirements.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1024754
- Country of Publication:
- United States
- Language:
- English
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