Analysis of the Impact of Selected Parameters of the Hybrid Extinguishing System on the Fire Environment in a Closed Room
| Autor: | Tomasz Drzymała, J. Gałaj, Paweł Wolny |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
hybrid extinguishing system
Nuclear engineering Geography Planning and Development water mist 0211 other engineering and technologies 02 engineering and technology Management Monitoring Policy and Law fire environment chemistry.chemical_compound Thermocouple 021105 building & construction Inert gas fire extinguishing Renewable Energy Sustainability and the Environment Mist 021001 nanoscience & nanotechnology carbon monoxide concentration Electrochemical gas sensor Volumetric flow rate oxygen concentration internal fire chemistry Hybrid system Environmental science Limiting oxygen concentration 0210 nano-technology Carbon monoxide |
| Zdroj: | Sustainability Volume 11 Issue 23 |
| ISSN: | 2071-1050 |
| DOI: | 10.3390/su11236867 |
| Popis: | The main purpose of this study was to analyze the impact of some parameters (water mist flow rate and type of gas used) of the hybrid extinguishing system on the fire environment (temperature as well as carbon monoxide and oxygen concentrations) in a closed room. Hybrid fire-extinguishing systems in which water mist is driven by inert gas combine the advantages of typical fog systems and fixed gas extinguishing devices. They have been developed in the last years but are now being used more and more often and the preparation of standards for them is planned for 2020. For this purpose, many fire tests with this system should be conducted. Some of them are discussed in this paper. Two different flow rates of water mist (1.5 or 3 dm3/min) and inert gas (nitrogen or air) were used during hybrid system testing. Some parameters of the fire environment in the compartment such as temperature measured by thermocouples as well as carbon monoxide and oxygen concentrations measured by electrochemical gas sensors are presented here. The characteristic values of the extinguishing process are also included. The assumed times of ensuring safe conditions in the room have been confirmed. |
| Databáze: | OpenAIRE |
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