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Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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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NRC v. Texas: Supreme Court weighs challenge to NRC authority in spent fuel storage case
The State of Texas has not one but two ongoing federal court challenges to the Nuclear Regulatory Commission that could, if successful, turn decades of NRC regulations, precedent, and case law on its head.
N. I. Sax, J. C. Daly, J. J. Gabay
Nuclear Technology | Volume 7 | Number 1 | July 1969 | Pages 106-112
Technique | doi.org/10.13182/NT69-A28392
Articles are hosted by Taylor and Francis Online.
The stack effluent of a nuclear fuel reprocessing plant would be expected to contain sufficient tritium to serve as a radioactive tracer for the plume. In order to make use of this built-in tracer, a silica gel sampler for tritiated moisture was developed, which permits large scale sampling. An intensive study of the area surraunding Nuclear Fuel Services, Inc. was undertaken during the summer of 1967 to determine experimentally the maximum concentration (Cmax) of the stack effluent using tritiated moisture as the tracer. Sampling legs that radiated from the stack were established. During a two-month period >700 samples were collected on 7 sampling legs. The average tritium radioactivity on the sampling leg northwest of the plant (leg G) exceeded 1000 tritium units (TU) 71% of the time for the 28 sampling periods studied. In 11 of 28 cases a maximum concentration of >3000 TU occurred. It was definitely demonstrated that a Cmax can be determined by tracing with tritiated moisture. Based on experimental Cmax values, an estimate of the emission rate, Q, was made under various meteorological conditions. The possibility of a secondary saurce of tritiated moisture influencing measurement of stack-emitted tritium was considered.
