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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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Orlando, FL|Renaissance Orlando at SeaWorld
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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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
William D. Hinkle, Henri Fenech
Nuclear Science and Engineering | Volume 87 | Number 1 | May 1984 | Pages 2-12
Technical Paper | doi.org/10.13182/NSE84-A17440
Articles are hosted by Taylor and Francis Online.
The results of an experiment on adiabatic annular air-water flow are described and analyzed to predict the gas/liquid film interaction and the dispersed mass flow rate of liquid. The experiment was conducted in a 1.262-cm-i.d. vertical tube, 426.72 cm long with upward flow. Several tests were conducted within a range of air mass flow rates of 23 to 144 kg/h, water mass flow rates of 46 to 237 kg/h, and inlet pressure of 276 to 620 kPa at 2°C. The pressure drop and the dispersed and film water mass fractions along the tube were measured. To obtain the wave velocity distribution, the wave disturbance length, and wave frequency, 3000 frame/s films were analyzed. The mass fraction of dispersed liquid transported by the gas is correlated as a function of static pressure drop, total mass flow rates of air and water, and distance from the water injection location. The analysis and correlation of the experimental results indicate that to a good approximation, the net rate of water mass transport from the film is proportional to the rate of shear energy transferred from the dispersed phase to the disturbance area of the waves. The rate of liquid droplet redeposition on the liquid film was assumed to produce an equal mass rate of liquid dispersion by “splashing.” The correlation fits the present experimental data with a ±30% band.