2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)最新文献_第9页

An Experimental Study on Self-extinction of Methanol Fire in Tunnels with Different Wall Surfaces 不同壁面隧道甲醇火灾自熄实验研究

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055762

Shuhang You, Cong Zuo, Y. Xiong, Yu Zhao, Yang Liu, P. Lin

{"title":"An Experimental Study on Self-extinction of Methanol Fire in Tunnels with Different Wall Surfaces","authors":"Shuhang You, Cong Zuo, Y. Xiong, Yu Zhao, Yang Liu, P. Lin","doi":"10.1109/ICFSFPE48751.2019.9055762","DOIUrl":"https://doi.org/10.1109/ICFSFPE48751.2019.9055762","url":null,"abstract":"Fire tests with both methanol fires ranging from 2.8 to 16.8 kW were conducted in two 1:20 reduced-scale tunnels with identical cross-section size of 0.45 m wide × 0.23 m high but different surfaces, i.e., glass and fire-resistant board respectively. The fire source is placed in the center of the tunnel and is naturally ventilated. The experiment measured the temperature and gas concentration by thermocouple and flue gas analyzer, i.e. oxygen, carbon monoxide and carbon dioxide respectively. The results showed that the heat release rate was 2.8, 5.6, 11.2 and 11.6kw, and the self-extinction (excluding the fire-resistant tunnel with a heat release rate of 2.8kw). With a lower heat release rate, the self-extinction of the glass tunnel is longer than that of the fire-resistant board tunnel, the larger heat is the release rate, and the glass tunnel and the fire-resistant tunnel have almost the same length of self-extinction. The reason why glass tunnels self-extinction faster than fire-resistant tunnels is that the glass is poorly insulated and has a large heat exchange with the outside, so that the flue gas settles quickly, blocked supply of fresh air to reach the fire seat.","PeriodicalId":6687,"journal":{"name":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","volume":"116 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74549771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and Early Warning Design of Fire Resistance Characteristics of Steel Structure Towers for High Voltage Transmission Lines 高压输电线路钢结构塔耐火特性仿真与预警设计

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055825

Houcai Xu, Fei You, Peng Yang, Junhui Zhou

{"title":"Simulation and Early Warning Design of Fire Resistance Characteristics of Steel Structure Towers for High Voltage Transmission Lines","authors":"Houcai Xu, Fei You, Peng Yang, Junhui Zhou","doi":"10.1109/ICFSFPE48751.2019.9055825","DOIUrl":"https://doi.org/10.1109/ICFSFPE48751.2019.9055825","url":null,"abstract":"The dynamic simulations of stress evolution, surface and body temperature distribution of steel structure tower members of high voltage transmission lines (HVTL) under mountain fire conditions were carried out. The early-warning system of fire resistance performances of HVTL tower was established. The data analysis model for fire resistance characteristics and determination of collapse risk grade of such steel structure tower was developed. Based on distributed noncontact transducers of stress-strain and temperature, multi-antenna receiving mode of division-integration and remote server, the time-varying space temperature field of the mountain fire (A) was analyzed by using the tool of Ansys-Fluent, structural fire resistance performance of HVTL tower (B) was inspected by using the nonlinear finite element analysis tools such as ANSYS and SAP2000. By coupling (A) and (B), performing dynamic simulation, threshold comparison and image fitting, the variation profiles of temperature-stress-strain (T-ε) of overall tower can be obtained. Through the profiles the key mutation nodes and corresponding parameters can be figured out. Resultantly, the theoretical calculation, nonlinear finite element simulation and data analysis models for the fire resistance characteristics of the steel structure tower, the progressive stress loss, stress-induced deformation and determination of collapse risk level have been established. The research can provide guidance for the planning, design, operation and maintenance of steel towers with various structural configurations and voltage grades relating to overhead transmission lines, and realize the safety operation and structural failure warning of steel structure towers and smart grids that are involved in environments of mountain fires.","PeriodicalId":6687,"journal":{"name":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","volume":"42 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77419644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Study of Kitchen Fires in High-rise Residential Buildings 高层住宅厨房火灾的数值研究

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055772

Jing Liu, Peng Wang, Guangrui Song

引用次数: 1

An Experimental Study of the Effect of Cross Wind on the Pool Fire with Different Leeward Sidewall Heights 侧风对不同背风侧壁高度池火影响的实验研究

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055793

Zhiwei Ding, Xiao Chen, Shouxiang Lu

{"title":"An Experimental Study of the Effect of Cross Wind on the Pool Fire with Different Leeward Sidewall Heights","authors":"Zhiwei Ding, Xiao Chen, Shouxiang Lu","doi":"10.1109/ICFSFPE48751.2019.9055793","DOIUrl":"https://doi.org/10.1109/ICFSFPE48751.2019.9055793","url":null,"abstract":"This paper presents the effect of cross wind on the burning rate and flame morphological characteristics of heptane pool fire with different leeward sidewall heights. The leeward sidewall heights were 10 cm, 20 cm and 30cm and the cross wind velocity ranged from 0.21 m/s to 3.00 m/s. The experimental results indicated that the burning rate increased with the ascending of cross wind velocity, while the burning rate showed a decreasing trend as the leeward sidewall height increased from 10 cm to 30 cm. An empirical formula was proposed to express the burning rate of pool fire with different leeward sidewall heights in cross flow. The flame height decreased with the cross wind velocity increasing, while the flame tilt angle showed an opposite trend. Meanwhile, the flame height and flame tilt angle were correlated with Fr2/3/Q* and u*, respectively. Moreover, the flame would flow out as the cross wind velocity rose up to a certain value when the leeward sidewall height was 10 cm or 20 em, and the difference between the overflow flame tilt angle β and the flame tilt angle α was mathematically expressed for the flame flowed out the leeward sidewall.","PeriodicalId":6687,"journal":{"name":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","volume":"520 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77200700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the Influence of the Side Wind on the Heat Release Rate of Enclosure Fire 侧风对围护火灾放热速率影响的研究

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055842

Yaxin Qiao, Jun-mei Li, Yuhang Zhao

引用次数: 0

Urban Fire Risk Evaluation Based on 2-tuple AHP—Taking the 8th Division with Shihezi City for Example 基于二元层次分析法的城市火灾风险评价——以石河子市八区为例

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055872

C. Yin, Kaixuan Qi, Kunze Li, Qiangling Duan, Lijing Gao, Jinhua Sun

引用次数: 0

Thermal Hazard Evaluation of Hydrogen Peroxide Solution 过氧化氢溶液的热危害评价

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055798

Xiaohua Fan, Wei Su, Yan Huang

引用次数: 0

Evacuation Route Planning for Semi-submersible Platform under Fire 半潜式平台遇火疏散路线规划

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055800

Jin Gao, Pengcheng Xu, G. Qiu

{"title":"Evacuation Route Planning for Semi-submersible Platform under Fire","authors":"Jin Gao, Pengcheng Xu, G. Qiu","doi":"10.1109/ICFSFPE48751.2019.9055800","DOIUrl":"https://doi.org/10.1109/ICFSFPE48751.2019.9055800","url":null,"abstract":"The selection of evacuation routes plays a significant role in evacuation efficiency under emergency fire conditions. In order to plan a reasonable evacuation scheme and decrease casualties when the semi-submersible platform suffers a fire, a designated evacuation scheme under fire is introduced. A seven-story semi-submersible platform is taken for example to quantify the impact of evacuation route choice, and fire diffusion parameters are imported to the evacuation model. Firstly, crew selects the evacuation route to evacuate to the assembling station independently under fire in case 1. Secondly, based on the evaluation results obtained from case 1 and the real-time perception of fire information, a prescribed evacuation scheme is employed in case 2. Simulation results acquired from these two cases are analyzed and compared from three aspects: evacuation time, utilization rate of exits and congestion, which show that the altered evacuation route in case 2 can help crew avoid the expanding fire and congested route effectively, so evacuation time is reduced and evacuation efficiency is improved. Moreover, by adjusting the evacuation route, the utilization rate of exits is improved as well. This research can contribute to the formulation of emergency plans and the design of evacuation routes when the semi-submersible platform suffers fire.","PeriodicalId":6687,"journal":{"name":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","volume":"63 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83064992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Observations on Burning Behavior of Inclined Thin Wood Sheets 倾斜薄木板燃烧特性的实验观察

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055803

Hui Zhu, Yunji Gao, Xingang Wang

引用次数: 0

Research on Ignition Characteristics of Nitrocellulose in Warehouse 硝基纤维素在仓库中的燃烧特性研究

2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE) Pub Date : 2019-10-01 DOI: 10.1109/ICFSFPE48751.2019.9055813

Shenmin Zhang, Yuxi Mi, Jing Jin, Jin-zhuan Zhang

{"title":"Research on Ignition Characteristics of Nitrocellulose in Warehouse","authors":"Shenmin Zhang, Yuxi Mi, Jing Jin, Jin-zhuan Zhang","doi":"10.1109/ICFSFPE48751.2019.9055813","DOIUrl":"https://doi.org/10.1109/ICFSFPE48751.2019.9055813","url":null,"abstract":"Nitrocellulose was ignited by four most likely heat sources in the warehouse: incandescent bulb, overload conductor, melting droplet of conductor insulation skin and welding slag. The combustion characteristics of nitrocellulose were observed and recorded. The results showed that nitrocellulose was decomposed and burned instantaneously at 185.4°C.A small amount of nitrocellulose will not burn until it is attached to a 200W incandescent lamp. When the copper wire with the diameter of 2.5mm2 passes through an overload current of more than 2 times, the nitrocellulose will deflagrate. When nitrocellulose is ignited by open flame, it produces orange and yellow columnar flame, accompanied by a large number of floating sparks. When the nitrocellulose is ignited by the overload wire, it will deflate in the insulation skin, generating a large amount of flying sparks. Incandescent bulbs of 200W or above have the ability of igniting nitrocellulose. After nitrocellulose reaches 190°C, the reaction is basically complete and there is no flame burning. When the welding slag falls into nitrocellulose, it can ignite, and the combustion phenomenon is similar to that of open fire. Cigarette contact with nitrocellulose can ignite nitrocellulose. The main characteristic functional groups of nitrocellulost combustion products in infrared spectrum analysis include c-o expansion, symmetrical expansion of nitric acid and o–o of peroxide. The above experimental conclusions can provide technical support for the determination of nitrocellulose combustion in the process of fire investigation.","PeriodicalId":6687,"journal":{"name":"2019 9th International Conference on Fire Science and Fire Protection Engineering (ICFSFPE)","volume":"23 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86537808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2