Zuohui Xu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Zuohui Xu has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Haiyan Wang
School of Emergency Management & Safety Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
1 shared publication - Jiaying Hu
School of Mine Safety, North China Institute of Science and Technology, Langfang 065201, China
1 shared publication - Lei Chen
School of Emergency Management and Safety Engineering, China University of Mining Technology (Beijing), Xuyuan Road Ding 11, Haidian District, Beijing 100012, China
1 shared publication - Sentao Lu
School of Safety Engineering, North China Institute of Science and Technology, Langfang 065201, China
1 shared publication - Simin Tang
Safety and Evaluation Department, Anhui Chemical Industry Institute Testing and Evaluation Technology Co., Ltd., Hefei 230001, China
1 shared publication
Latest Publications
- Open Access
Experimental Study on the Effect of Sealing Time on Combustion State of the Fuel-Ventilation Controlled Wood Crib
A tunnel fire may gradually change from a fuel-controlled fire to a ventilation-controlled fire during the sealing process, so it is of great significance to study the influence of sealing time on the combustion state for safety control. In this study, an unsealed wood-crib fire test was first carried out using a reduced-scale tunnel model. When the wind velocity is 0.10 m/s, the wood crib is fuel-controlled. Based on this, the combustion state of a wood-crib fire was studied experimentally when the sealing time was 1 min, 3 min, 7 min, and 10 min. The results showed that after sealing, the flame orientation is approximately vertical, and as the sealing time increases, the carbonization of the wood crib becomes more pronounced. The ratio of XCO/XCO2 exceeds 0.057 1 min after sealing, and the wood-crib fire becomes ventilation-controlled. When the sealing time is 7 min and 10 min, the increase rate of XCO/XCO2 is faster than when the sealing time is 1 min and 3 min. The earlier the initial sealing time, the better the fire can be suppressed. During the sealing process, the temperature on the downwind side of the fire source decreases exponentially. This study aims to provide a reference for the application of sealing technology in tunnel fires.
Open AccessExperimental Study on the Effect of Sealing Time on Combustion State of the Fuel-Ventilation Controlled Wood Crib
A tunnel fire may gradually change from a fuel-controlled fire to a ventilation-controlled fire during the sealing process, so it is of great significance to study the influence of sealing time on the combustion state for safety control. In this study, an unsealed wood-crib fire test was first carried out using a reduced-scale tunnel model. When the wind velocity is 0.10 m/s, the wood crib is fuel-controlled. Based on this, the combustion state of a wood-crib fire was studied experimentally when the sealing time was 1 min, 3 min, 7 min, and 10 min. The results showed that after sealing, the flame orientation is approximately vertical, and as the sealing time increases, the carbonization of the wood crib becomes more pronounced. The ratio of XCO/XCO2 exceeds 0.057 1 min after sealing, and the wood-crib fire becomes ventilation-controlled. When the sealing time is 7 min and 10 min, the increase rate of XCO/XCO2 is faster than when the sealing time is 1 min and 3 min. The earlier the initial sealing time, the better the fire can be suppressed. During the sealing process, the temperature on the downwind side of the fire source decreases exponentially. This study aims to provide a reference for the application of sealing technology in tunnel fires.