Experimental and numerical investigation on dynamic characteristic of nozzle check valve and fluid-valve transient interaction

Zhao, Liang; Chang, Zhengbai; Mai, Chulin; Ran, Hong; Jiang, Jin

doi:10.1016/j.nucengdes.2023.112737

Cited by 3 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The disc is a pressure control part that controls the flow of the medium [ 55 ]. When the liquid passes through the low-pressure area of the valves, the liquid velocity increases, and then the static pressure may reach the vaporization pressure of the liquid, resulting in the formation of cavitation bubbles [ 56 ]. When the cavitation bubbles are carried by the liquid flow to the area with high static pressure, the bubbles suddenly collapse, and the collapses occur near the valve material, causing damage to the valve.…”

Section: Cavitation Erosion On Valves and Pumpsmentioning

confidence: 99%

A Review of Cavitation Erosion on Pumps and Valves in Nuclear Power Plants

Gao,

Guo,

2024

Materials

View full text Add to dashboard Cite

The cavitation erosion failure of pumps or valves induces the low efficiency and reduced service life of nuclear reactors. This paper reviews works regarding the cavitation erosion of pumps and valves in the nuclear power industry and academic research field. The cavitation erosion mechanisms of materials of pumps and valves are related to the microstructure and mechanical properties of the surface layer. The cavitation erosion resistance of austenitic stainless steel can be ten times higher than that of ferritic steel. The cavitation erosion of materials is related to the hardness, toughness, and martensitic transformation capacity. Erosion wear and erosion–corrosion research is also reviewed. Erosion wear is mainly influenced by the hardness of the material surface. Erosion–corrosion behavior is closely connected with the element composition. Measures for improving the cavitation erosion of pumps and valves are summarized in this paper. The cavitation erosion resistance of metallic materials can be enhanced by adding elements and coatings. Adhesion, inclusion content, and residual stress impact the cavitation erosion of materials with coatings.

show abstract

Section: Cavitation Erosion On Valves and Pumpsmentioning

confidence: 99%