Integrated plasma scenario analysis for the HL-2M tokamak

Nuclear Fushion

article

L. Xue¹  J. Garcia²  G.Y. Zheng¹  G.T. Hoang²  J.F. Artaud²  X.R. Duan¹  J.X. Li¹  G. Giruzzi²  X.L. Zou²  W. Pan¹  J.H. Zhang¹  M. Huang¹  H.L. Wei¹  X.Y. Bai¹  X.Q. Ji¹  X.M. Song¹  S. Wang¹  X. Song¹  M. Xue¹  W.Y. Huang¹  the HL-2M team¹ 

[1] Southwestern Institute of Physics;CEA

关键词: HL-2M tokamak;    integrated modeling;    operation scenarios;   

DOI  :  10.1088/1741-4326/ab4c65

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

HL-2M is a new medium-sized tokamak under construction at the Southwestern Institute of Physics, dedicated to supporting the critical physics and engineering issues of ITER and CFETR. Analyzing integrated plasma scenarios is essential for assessing performance metrics and foreseeing physics as well as the envisaged experiments of HL-2M. This paper comprehensively presents the kind of expected discharge regimes (conventional inductive (baseline), hybrid and steady-state) of HL-2M based on the integrated suite of codes METIS. The simulation results show that the central electron temperature of the baseline regime can achieve more than 10 keV by injecting 27 MW of heating power with a plasma current ofI _p  =  3 MA and Greenwald fractionf  _G  =  0.65, with the thermal energy andβ _N reaching 5 MJ and 2.5, respectively. The hybrid regime withf  _ni  =  80%–90% can be realized atI _p  =  1–1.4 MA withf  _G around 0.5, whereβ _N is 2.3–2.5 withH ₉₈( y  ,2)  =  1.1. Because of the effect of the on-axis NBCD, the hybrid steady state, atI _p  =  1.0 and 1.2, can be achieved more easily than the steady state regimes with reversed shear, corresponding toβ _N  =  2.6 and 3.4. Such studies show that HL-2M is a flexible tokamak with a significant capacity for generating a broad variety of plasmas as a consequence of the different heating and current drive systems installed.

【 授权许可】

Unknown