Deposition characteristics of oil mist on metal and fabric surfaces in ship cabin

WANG Zhiyuan1, YU Tao2,3, JING Leiming4, LIN Bencheng5, ZHOU Aimin2, LENG Wenjun2, LIU Cong*1

1 School of Energy and Environment, Southeast University, Nanjing 210096, China

2 Wuhan Second Ship Design and Research Institute, Wuhan 430205, China

3 School of Energy and Power Engineering, Beihang University, Beijing 100191, China

4 The 92330 Unit of PLA, Qingdao 266102, China

5 Institute of Environmental and Operational Medicine, Academy of Military Medical Sciences,

Academy of Military Sciences, Tianjin 300050, China

Abstract: ［ Objective］This study focuses on the deposition characteristics of oil mist on metal and fabric surfaces in ship cabin. ［ Methods］Oil mist is released in an experimental cabin and allowed to deposit on the target surfaces. The mass difference before and after deposition on the surfaces is weighed to determine the deposition mass, and the oil mist deposition characteristics of surfaces with different orientations and materials are compared. The deposition on the horizontal downward surface is reasonably assumed to be gas phase deposition. Its contribution is then estimated and the particle phase deposition velocity is calculated. ［Results］The deposition mass on the horizontal upward surface of the metal is 3.98 times and 4.66 times greater than that on the vertical surface and horizontal downward surface. For fabric surfaces, the deposition mass on the horizontal upward surface is 1.08 times and 1.20 times greater than that of the vertical surface and horizontal downward surface. For material comparison, the deposition mass on the horizontal upward, vertical and horizontal downward surfaces of the fabric is 49.1 times, 169.8 times and 155.5 times greater than that of the metal surface facing in the same direction respectively. Estimates show that the contribution of phase deposition to the metal horizontal and vertical surfaces are 21.5% and 79.2% respectively. The contribution of phase deposition to the fabric surfaces is about 90%. ［ Conclusions］ The oil mist deposition on fabric surfaces is much stronger than that on metal surfaces. The deposition on the metal horizontal upward surface is much greater than that on the vertical surface and horizontal downward surface. The deposition differences between the fabric surfaces in the three orientations are not significant. Regardless of orientation or material, gas phase deposition cannot be ignored as it plays a dominant role in ship cabin environments.

Key words: ship cabin；oil mist；metal surface；fabric surface；deposition velocity

收稿日期: 2022–09–29 修回日期: 2023–02–27 网络首发时间: 2023–05–22 11:21

基金项目:国家部委基金资助项目

作者简介: 王志远，男，1999 年生，硕士生。研究方向：室内空气品质。E-mail：zhiyuanjs@126.com刘聪，男，1986 年生，博士，副教授。研究方向：健康空气环境。E-mail：liuc@seu.edu.cn *通信作者:刘聪