以火災模擬軟體（FDS）模擬抽氣式偵煙探測器（ASD）設計之研究

The Study of Aspirating Smoke Detector System with Fire Dynamics Simulator

鄭紹材(Shao-Tsai Cheng) ； 宮肇猷(Chau-Yu Gong)

《技術學刊》 30卷2期 (2015/06) Pp. 73-82

摘要

本研究透過以計算流體力學為基礎之「火災模擬軟體（fire dynamics simulator, FDS）」，模擬抽氣式偵煙探測器（aspirating smoke detector system, ASD）應用於挑高大空間。FDS模擬結果與全尺寸煙霧實驗做分析比對、互相驗證。研究發現以FDS模擬，發出警報的時間會較早，約10-30秒。FDS之模擬結果偏向樂觀，對於防火設計上較為不安全。因此若使用FDS模擬ASD設計，對於模擬數據之參考需有安全值規劃，方能貼近實際之煙霧實驗。惟此安全值之比率仍需更多實驗的分析與統計。

關鍵字

抽氣式偵煙探測器系統 ； 煙霧實驗

並列摘要

This study has employed a Fire Dynamics Simulator that is based on Fluid Dynamics to simulate the application of Aspirating Smoke Detector System in High-ceiling Spaces. The FDS simulation result has been analyzed and compared with Full-Scale Smoke Experiments. According to the study results, the alarm would be set off about 10-30 seconds sooner when applying FDS simulation. However, the result of FDS simulation might be too optimistic to have a secure fire protection planning. Therefore, a safety limit should be set for ASD Design with FDS Simulation for a closer result to the actual smoke experiment. However, the ratio of the safety limit will still need to be derived from more experimental analysis and statistics.

並列關鍵字

FDS ； aspirating smoke detector system ； smoke experiment