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Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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Latest News
Virginia utility considers SMRs
Dominion Energy Virginia has issued a request for proposals from leading nuclear companies to study the feasibility of putting a small modular reactor at its North Anna nuclear power plant.
While the utility says it is not a commitment to build an SMR at the site, the RFP is “an important first step in evaluating the technology and the North Anna site to support Dominion Energy customers’ future energy needs consistent with the company’s most recent Integrated Resource Plan.”
Bernd Sohnius, Rudolf Anton, Erwin Wehner, Frank-Dietrich Heidt, Rudolf Rabenstein
Nuclear Technology | Volume 99 | Number 2 | August 1992 | Pages 213-221
Technical Paper | Nuclear Fuel Cycle | doi.org/10.13182/NT92-A34691
Articles are hosted by Taylor and Francis Online.
A method to determine the release of low activities through natural air exchange from a decommissioned fuel fabrication plant is described. The method has been applied to the buildings of the NUKEM-A plant and was important in obtaining governmental authorization for the plant decommissioning. The air exchange rate in the NUKEM-A plant was measured by using a tracer gas method. For that purpose, N2O as inert gas was injected into representative rooms, and the decrease of concentration caused by exfiltration processes was measured by an infrared gas analyzer as a function of time. The knowledge of this decay curve allows the calculation of low activities, which may be released into the environment by the natural air exchange. The activity is determined according to the German radiation protection regulation. From this, an air exchange rate of ∼25 h−1 would be equivalent to 10% of the tolerable activity emission. The measured exchange rates are less than ∼0.5 h−1. This results—at least for the meteorological conditions during the measurement period—in a significantly lower activity release than that permitted. The measuring method was successfully performed and can be recommended for similar investigations.