Experimental Study of the Effect of Ceiling Vent on Fuel Mass Loss Rate

Author(s):  
Qiang Li ◽  
Chang Liu ◽  
Jiaqing Zhang ◽  
Jinmei Li ◽  
Hongxin Liu ◽  
...  
2003 ◽  
Vol 21 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Jing-Yan Zhang ◽  
Li-Zhong Yang ◽  
Zai-Fu Guo ◽  
Zhi-Hua Deng

2015 ◽  
Vol 1120-1121 ◽  
pp. 1485-1490
Author(s):  
Jian Li Yuan ◽  
Yun Yang ◽  
Sheng Nan Peng

Aiming at the environmental property and damage mechanism of ancient adobe buildings, the material components, compressive strength and freezing-thawing resisting performance of ancient adobe bricks were tested and analyzed. Based on test data, the power function relation between nondestructive rebound value and compressive strength of adobe bricks was established, and the nonlinear correlation curve between mass loss rate and freezing–thawing cycles of adobe bricks was also determined. The study shows that the compressive strength of ancient adobe brick is greater than that of adobe in traditional rammed earth wall, and ancient adobe brick is inferior to fired brick at the waterproofing quality and freezing resisting performance, it needs to adopt surface waterproofing measures for ancient adobe buildings to improve the resisting capacity to environmental erosion.


2002 ◽  
Vol 20 (1) ◽  
pp. 23-35 ◽  
Author(s):  
Yang Lizhong ◽  
Guo Zaifu ◽  
Zhang Jingyan ◽  
Chen Xiaojun ◽  
Deng Zhihua

2014 ◽  
Vol 20 (1) ◽  
pp. 121-131 ◽  
Author(s):  
Wen Xi Shi ◽  
Jie Ji ◽  
Jin Hua Sun ◽  
S. M. Lo ◽  
Lin Jie Li ◽  
...  

In this paper, to study the influence of stack effect on fire in the compartment adjacent to a stairwell, a set of experiments were conducted by varying the pool size, top vent state and bottom vent size in a 1/3 scaled 12-layer-stairwell configuration. The phenomenon of methanol flame tilting in the fire room was observed and studied. Results showed that the flame tilt angle increases with an increase of Ri-1. The temperatures of hot gases in the fire room decrease due to the cooling effect of fresh air induced by stack effect. The mass loss rate of methanol fuel is influenced by fresh air flow sucked into fire room due to stack effect. On the basis of the experimental results, we conclude that the velocity of air flow into fire room is proportional to 1/3 power of the heat release rate in the stairwell.


Sign in / Sign up

Export Citation Format

Share Document