排水通氣系統為建築物非常重要之服務設備之一，因此本研究將首重於文獻回顧與基礎資料整理及流體現象之掌握，並進行案例收集與現況調查，以便釐清高層建築整體排水通氣系統相關課題；其次分析歸納國內系統形式，並藉由專業技術人員之訪談與相關設計規範整理，建立可供分析各類型系統之分類方式，並研提適切之系統設計決策程序；另一方面，配合流體現象與管內空氣壓力分布理論，定性比較各因子之性能優劣，而藉由調查案例之性能試算與回饋，檢視系統之整體性能等級與其性能因子組成情形，並判讀可能產生破封疑慮之發生位置與風險評估等；本研究成果包括：建立高層建築排水通氣系統分類方式，以及建立可提供系統設計參考之決策程序，與系統設計提案回饋修正或既有系統性能檢核之評估工具。

The drainage system is one of the most essential facilities in building service engineering. This paper introduces a decision-making framework and a performance evaluation method for drainage systems within high-rise buildings through an empirical observation and a basic understanding of the stack fluid mechanism. A schematic structure for high-rise building drainage systems is presented to clarify this vital facility. Results include a decision-making flow patch and assessment tool for performance evaluation of drainage system design in high-rise buildings. Case-studies obtained from investigations were used to confirm the practicality of this evaluation method. The results of this study can support the decision-making process and be used as an assessment tool for current design and automation in construction of high-rise building drainage systems.

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