Acoustic characterization study for multi-hole orifices in nuclear piping system

IF 3.3 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Progress in Nuclear Energy Pub Date : 2025-02-01 DOI:10.1016/j.pnucene.2024.105592

Runlin Gan, Baoren Li, Jingrui Chu, Chang Yuan, Gang Yang

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引用次数: 0

Abstract

The multi-hole orifices (MOs) present significant advantages, including the suppression of cavitation, enhanced flow stability, noise reduction, and displaying a wide range of potential applications in nuclear power piping systems. Currently, the research on MOs predominantly focuses on flow rate and pressure control, yet there is a notable gap in understanding the noise reduction mechanisms associated with the structural acoustic characteristics. It hampers the theoretical advancement of noise reduction design for MOs, and its ultimate practical engineering applications. A number of factors impact the acoustic properties of MOs, and different hole distributions and shapes result in different acoustic properties. This paper investigates various hole distributions and shapes within the background of meeting the low-noise performance requirements of MOs. The evaluation of acoustic performance is conducted based on flow velocity, cavitation, and transmission loss. The influence of hole distribution and shape on the acoustic performance of MOs is systematically analyzed. The results demonstrate that various hole distribution and shapes have diverse effects on the acoustic performance. The structural design with a circumference distribution of circular holes emerges as a critical fundamental type for realizing low-noise MOs. This paper offers valuable insights for the design of low-noise MOs.

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来源期刊

Progress in Nuclear Energy 工程技术-核科学技术

CiteScore

5.30

自引率

14.80%

发文量

331

审稿时长

3.5 months

期刊介绍： Progress in Nuclear Energy is an international review journal covering all aspects of nuclear science and engineering. In keeping with the maturity of nuclear power, articles on safety, siting and environmental problems are encouraged, as are those associated with economics and fuel management. However, basic physics and engineering will remain an important aspect of the editorial policy. Articles published are either of a review nature or present new material in more depth. They are aimed at researchers and technically-oriented managers working in the nuclear energy field. Please note the following: 1) PNE seeks high quality research papers which are medium to long in length. Short research papers should be submitted to the journal Annals in Nuclear Energy. 2) PNE reserves the right to reject papers which are based solely on routine application of computer codes used to produce reactor designs or explain existing reactor phenomena. Such papers, although worthy, are best left as laboratory reports whereas Progress in Nuclear Energy seeks papers of originality, which are archival in nature, in the fields of mathematical and experimental nuclear technology, including fission, fusion (blanket physics, radiation damage), safety, materials aspects, economics, etc. 3) Review papers, which may occasionally be invited, are particularly sought by the journal in these fields.