An experimental and non-dimensional study on the vertical temperature distribution of a sealed ship engine room fire. (1st October 2018)

• Record Type: Journal Article
• Authors: Wang, Jinhui; Jiao, Yu; Shi, Long; Xie, Qimiao; Li, Guoqiang; Liu, Jiahao; Chen, WeiJiong; Zhang, Shaogang
• Is Part Of: Ocean engineering. Volume 165(2018)
• Page Start: 22
• Page End: 33
• Publication Date: 2018-10-01
• Subjects: Ship safety -- Sealed engine room fire -- Pool fire -- Vertical temperature distribution -- Non-dimensional analysis -- Empirical model; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2018.07.018
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: Fire in a sealed ship engine room is different from open fires, while its suppression is critically important to the emergency rescue and structure safety for a ship. This study focused on the vertical distribution of temperature rise during a sealed engine room fire. A series of experiments were carried out to investigate fire behaviors in a reduced-scale sealed ship engine room with a dimension of 3 m (length) × 3 m (width) × 3.5 m (height). The results suggested that there are vertical temperature gradients of smoke layer, showing a little lower than those of open fires. The experimental results demonstrated that the time to reach the maximum temperature is different for smoke layers at various heights, while a lower height showed a relatively long delay time. The vertical gradient of temperature rise was found increasing with pool diameter where the gradient of temperature rise of a 30 cm pool fire is about 9 times of that of a 10 cm pool fire. Furthermore, an empirical model was developed to predict the vertical temperature rise distribution along the height at the time of the maximum temperature for sealed engine room fires. Highlights: A series of experiments were conducted to investigate sealed ship engine room fire. Time to maximum temperature increases with height and decreases with pool diameter. Temperature rise showed an approximately linear increasing relationship with height. Empirical model was developed to predict the temperature rise of sealed fire.