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Fusion Science and Technology
Latest News
IAEA again raises global nuclear power projections
Noting recent momentum behind nuclear power, the International Atomic Energy Agency has revised up its projections for the expansion of nuclear power, estimating that global nuclear operational capacity will more than double by 2050—reaching 2.6 times the 2024 level—with small modular reactors expected to play a pivotal role in this high-case scenario.
IAEA director general Rafael Mariano Grossi announced the new projections, contained in the annual report Energy, Electricity, and Nuclear Power Estimates for the Period up to 2050 at the 69th IAEA General Conference in Vienna.
In the report’s high-case scenario, nuclear electrical generating capacity is projected to increase to from 377 GW at the end of 2024 to 992 GW by 2050. In a low-case scenario, capacity rises 50 percent, compared with 2024, to 561 GW. SMRs are projected to account for 24 percent of the new capacity added in the high case and for 5 percent in the low case.
Hisamichi Funaba, Kiyomasa Watanabe, Satoru Sakakibara, Ichihiro Yamada, Kenji Tanaka, Tokihiko Tokuzawa, Masaki Osakabe, Yoshiro Narushima, Noriyoshi Nakajima, Masayuki Yokoyama, Hiroshi Yamada, Osamu Kaneko, Kazuo Kawahata, LHD Experimental Group, Sadayoshi Murakami
Fusion Science and Technology | Volume 51 | Number 1 | January 2007 | Pages 129-137
Technical Paper | Stellarators | doi.org/10.13182/FST07-A1294
Articles are hosted by Taylor and Francis Online.
Local transport properties of high-beta plasmas in the Large Helical Device are studied by comparing the beta dependence of the experimental results with that of the gyro-reduced Bohm-type transport coefficients. The gradual degradation of global confinement in the high-beta regime seems to be mainly caused by the increment in the local transport at the peripheral region. Effects of the resistive pressure-gradient-driven (g-mode) turbulence on the peripheral transport are also studied. The comparison of the experimental transport coefficients and the calculation results shows that the resistive g-mode can be considered as one of the causes of this degradation.
