地板出風系統作為現代空調策略中的重要一環，其出風口設計直接左右整體空調系統的運行效率與使用者的舒適性。本研究針對現有商用與常見地板出風口類型，結合文獻分析、模擬空間實驗、辦公空間實測，全面探討開孔尺寸與靜壓室高度之不同配置，對於氣流行為與系統效能的影響。同時，本研究進行出風口型式的局部改良與功能調適，期望能為日後地板出風口提供具體且可行的標準化設計依據。
本研究採用1.8m × 1.8m之實驗模擬平台，此平台可調整靜壓室高度範圍自10cm~30cm，用以重現抬高樓板所形成之靜壓室內部配置，模擬不同靜壓條件下的氣流行為。透過更換各類型出風口面板，比較不同開孔形式與面積比例對風速場分布、噴流垂直噴流高度及煙霧擴散軌跡之影響，第二實地測試場域為長8.63m、寬6.8m之老舊開放式辦公空間，探討進風口位置與出風口分佈方式等，進一步分析其對室內氣流穩定性的控制能力。
實驗結果顯示，當出風口開孔面積範圍提升到188.4cm²~282.6cm²之間時，出風風量有顯著增幅，有助於提升室內氣流的穩定性與均勻性。另一方面，在靜壓室高度方面，本研究發現15cm高之靜壓空間提供了最佳的效能平衡，不僅可維持足夠的供風壓力，亦能有效抑制渦流與過強氣流導致的局部不適感，為空調系統提供穩定且高效的運行條件。
研究結果強調開孔尺寸與靜壓室高度對地板出風系統性能具有顯著影響，並證實透過合理的設計調整，可有效提升整體風量，並改善氣流分布均勻性，為未來大型辦公空間或對舒適性有較高要求之空間提供重要的設計參考依據。

This study explores how air outlet configuration, aperture size, and plenum height affect the performance and thermal comfort of underfloor air distribution (UFAD) systems. Recognizing the critical role of outlet design in airflow efficiency, the research combines literature review, experimental simulation, and field testing. A 1.8m × 1.8m test platform with adjustable plenum height (10–30 cm) was developed to simulate airflow conditions beneath raised floors. Various air outlet panels were tested to evaluate differences in air velocity fields, vertical jet height, and smoke diffusion patterns. Additionally, a real-world case study was conducted in an aged open-plan office (8.63m × 6.8m) to assess the impact of inlet positions and outlet layouts on indoor airflow stability.
Experimental results indicate that increasing the aperture area to 188.4–282.6 cm² significantly enhances airflow rate and improves uniformity. The analysis also shows that a 15 cm plenum height provides optimal performance—balancing sufficient static pressure while avoiding turbulence and discomfort caused by excessive localized airflow. These findings demonstrate that careful adjustment of outlet design and plenum dimensions can greatly improve overall system efficiency and indoor comfort. The research provides valuable guidance for the standardized design of UFAD systems, especially in large offices and high-comfort environments.

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