| Summary: | 碩士 === 中原大學 === 室內設計研究所 === 99 === Abstract
The difference between exhibition space and public space, such as a general office or a classroom, is that the required ambient lighting for exhibition space has indirect effects on space requirements; as a result, exhibition space is usually presented in relatively dim lighting.
Accordingly, whether the indoor environment of exhibition space obstructs evacuation when a fire occurs is worth discussing. Thus, the vital motivation and objective of this study is to develop a method for assisting visitors and museum staff in conducting emergency evacuations in a smoke-filled environment. In this study, the main research method was experimentation through the simulation of smoke on the scene; the primary objects observed were the emergency direction lights and exit lights. The discussions explored the following two aspects: (1) Differences in observing the emergency direction lights and exit lights from different heights; and (2) the respective effects of various smoke concentrations obscuring the emergency sign system.
The specific result was divided into two parts, emergency direction lights and exit lights.
Emergency Direction Lights:
1.In defining the height threshold, this paper found that the height of the accumulated smoke layer was inversely proportional to the height of the observer’s viewpoint; in defining the concentration threshold, the correlation between smoke concentration and viewpoint height was insignificant.
2.The visibility of emergency direction lights was inversely related to the height of the accumulated smoke layer in the space and the height of the observer’s viewpoint.
Exit Lights:
1.Observers from lower viewpoints determined the thresholds of height and smoke concentration better than those from higher viewpoints did.
2.The smoke typically obscured the exit lights before it obstructed peoples’ viewpoints. Therefore, there was no direct relation between the visibility of exit lights and observer viewpoint height.
The conclusions of this paper present related knowledge of the visibility of the emergency sign system from the observers’ viewpoint, and can act as a reference for architects and interior designers during the design process.
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