Comparative test of ship ballast water sampling tools and ship test

被引：0

作者：

Lu Z. ^{[1
,2
]}

Zhang S. ^{[1
]}

Wang Y. ^{[1
]}

Shi Y. ^{[1
]}

机构：

[1] College of Power and Energy Engineering, Harbin Engineering University, Harbin

[2] Qingdao Shipbuilding Technology Co., Ltd., Harbin Engineering University, Qingdao

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2022年 / 43卷 / 08期

关键词：

ballast water; collection rate; pass rate; plankton; real ship; sample collection; sampling point; screen silk net; stainless steel net;

D O I：

10.11990/jheu.202105003

中图分类号：

学科分类号：

摘要：

To deal with the critical defects of low plankton capture rate in ballast water and the difficulty in obtaining representative samples, the influence of the sampling efficiency of plankton nets was researched in this study. The comparative test method was used to investigate the effects of the flow rate of sampling, plankton concentration, and size on the collection rate and pass rate of plankton nets with two different materials (stainless steel net and screen silk net, with an aperture size of 50 μm) . A real ship test was conducted. Results show that the collection rate of the stainless steel net exceeds 60% under different conditions, which is higher than that of the screen silk net; at the same time, the flow rate of ballast water and the mesh size of the plankton nets in real ships can be reduced to a reasonable range (less than 0. 88 m / s and 50 μm, respectively) to improve the collection rate. In the ship test, the collection rate of the stainless steel net is higher than that of the screen silk net, and the stainless steel net is strong and not easily damaged. Therefore, the stainless steel net is recommended as a sampling tool for ballast water in real ships. © 2022 Editorial Board of Journal of Harbin Engineering. All rights reserved.

引用

页码：1116 / 1121

页数：5

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