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Nuclear Research Ship: Japanese Learn Nuclear Techniques at Sea

ByRod Adams

…reactor power and steam flow change quickly but in small increments. In a following sea, reactor power variations of 5 percent or more are common with a constant propeller rotation rate. The changes that occur in a following sea are due to the effects of surfing and climbing waves. The reactor also has an automatic system to adjust control rods to keep the average coolant temperature in a narrow control band of 273 +/-1.2 C. (523 +/- 2.2 F). The…

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Benjamin Sovacool takes issue with Lorenzini’s criticism of his work

ByGuest Author

…jamin’s note and the subsequent email exchange led to my acceptance of the following guest post. I have published it without modification in hopes of generating continued worthwhile conversation. All opinions expressed in this post belong to the author, not to me or Atomic Insights. End editorial note. By Benjamin Sovacool Nukes, Birds, and Better Arguments As the author of these two studies http://dx.doi.org/10.1016/j.enpol.2009.02.011 and http:/…

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US EPA dose rate standard of 15 mrem/yr for long term disposal makes no sense

ByRod Adams

…ing by the US Court of Appeals for the District of Columbia Circuit , EPA, following careful consideration of public comments, amended the standards to provide the following: extending coverage beyond 10,000 years to peak dose (out to 1 million years) establishing a dose rate limit for the post-10,000-year period (100 mrem/yr) providing guidance for implementing the standards. Part 197 contains three standards for the disposal of radioactive waste…

Was Arnie Gundersen a Licensed Reactor Operator and Senior VP Nuclear Licensee?

ByRod Adams

…14 page resume provided to the US Nuclear Regulatory Commission on December 22, 2011, you have to reach the bottom of page 13 to find any mention of a job involving a license to operate a nuclear reactor. Rensselaer Polytechnic Institute (RPI) — 1971 to 1972 Critical Facility Reactor Operator, Instructor Licensed AEC Reactor Operator instructing students and utility reactor operator trainees in start-up through full power operation of a reactor. D…

The Worth-It Threshold – When gas or gas + renewables is as bad for climate as a coal plant
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The Worth-It Threshold – When gas or gas + renewables is as bad for climate as a coal plant

ByGuest Author

…thing that adds to the mess is the neglecting of baseload cycling for load following of intermittent sources. Many of these analyses seem to simply assume that existing baseload plants can be adapted to load following without considering the damage that does to plant systems, as well as the economic penalty for doing so. If significant baseload cycling occurs to the point of shortening the lifetime of the baseload plants, that cost should be consi…

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Amory Lovins continues Sowing Confusion About Renewable and Nuclear Energy

ByRod Adams

…amics assumptions. From Amory Lovins: 8/8/2014 This responds to Rod Adams’s 2255 6 August 2014 post, as he has lately made several posts here. (Background for other readers: Mr. Rod Adams publishes Atomic Insights (atomicinsights.com), which carries his and others’ prolific pro-nuclear-power advocacy in a variety of media, including his podcasts on The Atomic Show. His background (http://atomicinsightscom.c.presscdn.com/wp-content/uploads/Rod-Adam…

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Smoking gun – German president of Environmental Protection Agency touts natural gas instead of nuclear

ByRod Adams

…o the German government and Federal Environment Agency president” made the following statement: We are not missionaries, and every country will have to find its own way in energy policy, but it is obvious that nuclear plants are too inflexible and cannot sufficiently respond to variations in wind or solar generation, only gas [power stations] do. (Emphasis added.) The notion that power plants relying on uranium fission cannot respond to load chang…

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ExxonMobil, XTO, and climate change strategy

ByRod Adams

…gned as baseload generators, and there was simply no need to engineer load-following into them. That is not exactly true. There are several people who participate in discussions here who are qualified as senior reactor operators on B&W designed nuclear plants. They can testify that the B&W series of reactors was specifically designed with good load following characteristics. There were some regulatory decisions that prevented the plants from being…

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Atomic Show #218 – Ed Calabrese – Researching Dose Response

ByRod Adams

…n mutations.” The second report (Uphoff and Stern 1949) concludes with the following: “Viewing all experiments together, it appears that radiation at low dosages, administered at low intensity induces mutation in Drosophila sperm. There is no threshold below which radiation fails to induce mutations.” The arguments made by Calabrese can be found in the following (and summarized in the atomic insights podcast above). Calabrese raises a number of “d…

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Cooper’s criticism may awaken nuclear competitive spirit

ByRod Adams

…e created an environment where utility decision makers, thinking they were following a “conservative” course of action, made choices that led to the permanent shutdown of 2200 MW of clean electricity capacity with a market value of several billion dollars. That action was taken in reaction to a 75 gallon per day (0.05 gallon per minute) seep of nearly pure water. My final example is the several billion dollars worth of design modifications that wi…

South Texas Project Unit 1 tripped at 0537 on Feb 15, 2021
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South Texas Project Unit 1 tripped at 0537 on Feb 15, 2021

ByRod Adams

…Internal Communications at the STP Nuclear Operating Company provided the following narrative about the unit’s operating status. On Monday, Feb. 15, 2021, at 0537, an automatic reactor trip occurred at South Texas Project in Unit 1. The trip resulted from a loss of feedwater attributed to a cold weather-related failure of a pressure sensing lines to the feedwater pumps, causing a false signal, which in turn, caused the feedwater pump to trip. Thi…

Smaller nuclear reactors allow decentralized power – some critics not pleased
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Smaller nuclear reactors allow decentralized power – some critics not pleased

ByRod Adams

…the very large machines built under the mantra of “economy of scale.” I am following through with that belief and investing 40-60 hours per week of my remaining professional career to make it a commercial reality. I work with some amazingly talented people in that effort, so it is not really much of a sacrifice or a burden. In fact, it is pretty darned exciting to get up for work most days. Aside: Some antinuclear activists dismiss nuclear profess…

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