Abstract
Real-scale fire experiments were conducted to understand the fire spread characteristics of the major combustibles handled in traditional markets, a space with high fire risk. The major combustibles were selected through field surveys administered at a number of traditional markets. Through real-scale fire experiments, the horizontal fire spread rate according to the maximum heat release rate of major combustibles was examined. In addition, the separation distance to prevent fire spread to the facing store by radiant heat transfer was examined. As a result of the experiments, it was confirmed that the arrangement method of the combustibles causes a large change in the maximum heat release rate, fire growth rate, and fire spread rate. The horizontal fire spread rate showed a linear proportional relationship with respect to the maximum heat release rate regardless of the type of combustibles, and a correlation to define the relationship was proposed. A correlation equation for predicting the separation distance that can prevent fire spread by radiant heat transfer was proposed, and the curve by the correlation equation was in good agreement with the experimental results. Through this study, it is expected that the correlation proposed to examine the horizontal fire spread rate and the separation distance of major combustibles in a traditional market can be usefully used in the design of fire protection systems to reduce fire damage in the traditional market.
Highlights
In the field of fire engineering, the use of simulation programs for fire risk assessment of buildings is increasing
The heat release rate was measured through LSC using the real-scale fire experiments with major combustibles in traditional markets
Real-scale fire experiments were conducted using major combustibles that are present in traditional markets
Summary
In the field of fire engineering, the use of simulation programs for fire risk assessment of buildings is increasing. Since the fire spread is closely related to an increase in the fire growth rate—or the maximum heat release rate according to combustion area—understanding the fire spread characteristics is very important in establishing a fire safety plan Most of these studies analyze the fire spread phenomena in a well-controlled thermal environment targeting widely used materials [12,13,14]. Prediction of thermal decomposition and fire spread phenomena of combustibles through simulation requires the input of numerous factors, such as activation energy, pre-exponential factor, and heat of combustion (including thermal properties) Since these values must be measured very precisely and are required individually for each material, there are limitations in predicting the actual fire spread at the current stage of research. Analysis were conducted quantify the fire spread of combustibles arranged to Experiments have a shape and fire load similar to those oftothe actual traditional market. It is expected that the results of this study can be used as basic information useful in the the application of water curtain system to prevent fire spread and reduce damage in traditional application markets. of water curtain system to prevent fire spread and reduce damage in traditional markets
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