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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Vistra’s Perry nuclear plant approved for license renewal
Texas-based Vistra Corporation has announced that its license renewal application for the Perry nuclear power plant was approved by the Nuclear Regulatory Commission. The plant first connected to the grid in 1986 and is still operating under its original 40-year license, which was set to expire next year.
Takao Hayashi
Nuclear Technology | Volume 78 | Number 3 | September 1987 | Pages 216-226
Technical Paper | Fission Reactor | doi.org/10.13182/NT87-A15987
Articles are hosted by Taylor and Francis Online.
The heat transport capability of the steam generator (SG) in a high-temperature gas-cooled reactor (HTGR) is compared with SGs in other reactor types, for example, in gas-cooled reactors, pressurized water reactors, and liquid-metal fast breeder reactors (LMFBRs). The comparison is done in the form of q = Q/A (kW/m2), where Q is the reactor thermal output (in kilowatts) and A is the total heat transfer area (in square metres) of the SG. It is found that the HTGR SG has unexpectedly excellent characteristics, in spite of the low expectations of the gas-heating SG. In the area of heat transport capability, the HTGR SG is by no means inferior to (and may be superior to) light water reactors and LMFBRs. The reasons for this are explained and analyzed. The q value directly affects the design of the SG and the reactor, thus having a great impact on the cost of the plant. The greater q value of the HTGR SG lends optimistic views on the economics, at least on the HTGR SG design.