An introduction to heat transfer

Probabilistic Graphical Models

Study of various Brayton cycle designs for small modular sodium-cooled fast reactor

Influence of elbow curvature on flow structure at elbow outlet under high Reynolds number condition

http://www.koreascience.or.kr:80/article/JAKO200724737439338.pdf

A next generation sodium-cooled fast reactor concept and its r&d program

For the Japan Atomic Energy Agency sodium-cooled fast reactor, an experimental study on the fluctuating pressure of the hot legs was carried out with tests in a 1/3-scale model. The total resistance coefficient is consistent with published data, and, additionally, our research has given data up to the Reynolds number of 8.0×106. The flow visualization and velocity measurement confirmed the independence of the flow on the Reynolds number. Pressures on the pipe wall were statistically examined to predict the characteristics of fluctuating pressures of the hot legs. It reveals that generation of fluctuating pressure is dominant on the boundary of flow separation and reattachment.

Resistance and Fluctuating Pressures of a Large Elbow in High Reynolds Numbers

A new computational methodology of sodium-water reaction (SWR), which occurs in a steam generator of a liquid-sodium-cooled fast reactor when a heat transfer tube in the steam generator fails, has been developed considering multidimensional and multiphysics thermal hydraulics. Two kinds of reaction models are proposed in accordance with a phase of sodium as a reactant. One is the surface reaction model in which water vapor reacts directly with liquid sodium at the interface between the liquid sodium and the water vapor. The reaction heat will lead to a vigorous evaporation of liquid sodium, resulting in a reaction of gas-phase sodium. This is designated as the gas-phase reaction model. These two models are coupled with a multidimensional, multicomponent gas, and multiphase thermal hydraulics simulation method with compressibility (named the ‘SERAPHIM’ code). Using the present methodology, a numerical investigation of the SWR under a pin-bundle configuration (a benchmark analysis of the SWAT-1R experiment)...

https://www.tandfonline.com/doi/pdf/10.1080/18811248.2007.9711568

Akira Yamaguchi

Papers

Resistance and Fluctuating Pressures of a Large Elbow in High Reynolds Numbers

Computational Methodology of Sodium-Water Reaction Phenomenon in Steam Generator of Sodium-Cooled Fast Reactor

α-Decomposition for estimating parameters in common cause failure modeling based on causal inference

Numerical study on thermal stratification phenomena in upper plenum of LMFBR "MONJU"

Sodium pool combustion phenomena under natural convection airflow