臺灣博碩士論文加值系統

本研究首先將文式閥結合風量控制整合為文式風量平衡閥，進行分析調校及進行數學回歸曲線分析，接著以多個文式風量平衡閥構成一個多區域動態變風量(VAV)空調送風系統，實驗變風量控制之效果包括風量平衡及反應速度為目的。本研究所建立的設備可以模擬室內建築物之VAV系統同時針對其控制器做局部或全面系的流量設定，如此可建立室內熱舒適環境並同時分析空氣流量的動態仿真流程。本研究測試結果發現文式風量平衡閥，依回歸曲線作風量調整可達95％以上精確度。在多個文式風量平衡閥構成之多區域變風量(VAV)送風，根據本實驗所設定的風量下，同時調整控制器的參數值，讓系統的流量控制能穩定及反應迅速，在約80秒內多區域送風量即可達到所設定的風量。本研究成果可用中央空調VAV控制系統，達到最佳的風量需量控制，有利於風機變風量之節能效果，節能率可達40~50%。本研究結果驗證文式風量平衡閥應用於動態變風量系統之可行性，對於空調節能之重要性，可有效降低空調耗能。

In this study venturi valve and air volume control are combined to be an air balance venturi control valve. Air flowrate were measured and calibrated by mathematical regression analysis. The measurement accuracy of more than 95% was obtained with the regression analysis. Then multiple air balance venturi-control valves were tested in a multi-zone dynamic variable air volume (VAV) air conditioning air supply experimental system. The objective was to test the balancing of multi-zone variable air volume control and the time required for balance. The equipment established in this study was found to be able to simulate the air-conditiong VAV system for buildings. Partial load air supply was tested with two different air volume and thirteen cases that simulate some zones with partial or zero flowrate. These comprehensive test results of flow settings found that flow balance could be achieved in less than 80 seconds, would provide stable indoor thermal comfort environment. It was also found that multi-zone VAV tested with the air balance venturi control valve, power measurement show that energy saving can reach 40~50%. The results of this study verify the feasibility of applying the air balance venturi-control valve to multi-zone dynamic variable air volume system. The results of this study indicate that air balance venturi control valve has the advantages of accurate air volume balancing, quick reaction, and potential of energy saving control applied to air conditioning system.

目錄
摘要 i
ABSTRACT ii
誌謝 iii
表目錄 vi
圖目錄 vii
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 2
1.2.1 HVAC節能操作策略 2
1.2.2 VAV系統原理與分析 3
1.3 研究動機與目的 5
第二章流量計分析比較 6
2.1孔口板流量計（Orifice meter） 6
2.2文氏閥 （Venturi） 7
2.3皮托管流量計（Pitot tube meter） 8
2.4熱球式風速計 9
2.5各流量計之優缺點比較 10
2.6文氏閥流量計算 11
第三章實驗設備與方法 12
3.1量測系統 12
3.2實驗設備規格介紹 13
3.3實驗步驟說明 14
3.4實驗與量測注意事項 15
3.5回歸分析 17
3.6 VAV系統模擬 18
3.7 VAV系統模擬Model設計 19
第四章 結果與討論 21
4.1實驗文式風量平衡閥與標準文氏閥之比較 21
4.2實驗數據與資料 22
4.3分析討論 27
4.4系統平衡與反應時間 35
4.5系統平衡之耗電量分析 63
第五章 結論與建議 64
5.1結論 64
5.2建議 64
參考文獻 65

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