Design optimisation of a nanofluid injection system for LOCA events in a nuclear power plant

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Climnescu, I.^1 ; Stan, L.C.^1 ; Velcea, D.D.^1

Constanta Maritime University, Department of Engineering Sciences in the Mechanical Field and Environment, 104 Mircea cel Batran Street, Constanta

900663, Romania^1

关键词: Alumina-water nanofluid;    Connecting points;    Design optimisation;    Design parameters;    Heat transfer properties;    Injection systems;    Injection tanks;    Safety injection;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/7/072005/pdf
DOI  :  10.1088/1757-899X/145/7/072005

来源: IOP

【 摘 要 】

The safety issues inside a Nuclear Power Plant (NPP) are encompassing their capacity to ensure the heat sink, meaning the capacity of the systems to release the heat from the rector to the environment. The nanofluids having good heat transfer properties, are recommended to be used in such applications. The paper is solving the following scenario: considering the Safety Injection tank and the Nanofluid injection Tank, and considering the Nanofluid injection Tank filled with a 10% alumina-water nanofluid, how can we select the best design of the connecting point between the pipes of the SIT and the Nanofluid Tank and the pressures inside of any of these tanks in order to have the biggest density of nanoparticles leaving the tanks toward the cold leg. In conclusion the biggest influence over the rate of disposal of the nanofluid inside ECCS is that of the pressure inside the SIT followed in order by the injection pipe diameter and the pressure inside the nanofluid tank. The optimum balance of these three design parameters may be reached following the procedure shown in this paper.