Full-Scale Experiments of Water-Mist Systems for Control and Suppression of Sauna Fires

被引:2
作者
Santangelo, Paolo E. E. [1 ,2 ]
Tarozzi, Luca [3 ]
Tartarini, Paolo [4 ,5 ]
机构
[1] Univ Modena & Reggio Emilia, Dipartimento Sci & Metodi Ingn, I-42122 Reggio Emilia, Italy
[2] Ctr Interdipartimentale Ric En&Tech, I-42122 Reggio Emilia, Italy
[3] Bettati Antincendio Srl, I-42124 Reggio Emilia, Italy
[4] Univ Modena & Reggio Emilia, Dipartimento Ingn Enzo Ferrari, I-41125 Modena, Italy
[5] Ctr Interdipartimentale Ric InterMech MO RE, I-41125 Modena, Italy
来源
FIRE-SWITZERLAND | 2022年 / 5卷 / 06期
关键词
timber; ventilation; room temperature; air gap; damage ratio; thermometry; WOOD-CRIB; SIMULATION; SPRAYS;
D O I
10.3390/fire5060214
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Sauna is a common fixture in many facilities; a specific fire-protection system is typically designed and installed for this application, as short circuits or direct contact with incandescent materials may result in a fire. Water mist has been recently considered as a promising option for this purpose; so, assessing its control and suppression capability in a sauna configuration has become of paramount importance for designers and engineers. To this end, an unprecedented real-scale test rig was built and instrumented with thermocouples and a hot-plate thermometer towards the evaluation of water-mist performance against various fire scenarios and, ultimately, to provide guidelines to designers. Timber benches were employed as target materials, while the fire was initiated in a wood crib. Design parameters, such as initial room temperature, location of the ignition source, nozzle-to-wall distance, and air gap between benches and wall, were varied, also including natural ventilation in a dedicated experiment. The system proved successful in controlling and containing the fire: bench damage ratio-selected as a quantitative parameter to assess water-mist performance-was consistently lower than 5%. However, extinction was not always achieved, especially under the most challenging configuration in terms of ventilation, initial room temperature, and nozzle-to-wall distance.
引用
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页数:17
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