臺灣博碩士論文加值系統

由於溫、濕度環測設備普遍為獨立迴路之PID控制，故響應性能不佳，過程產生多次振盪與耗能。此外，最佳化之節能與快速反應之溫、濕度控制系統，必須適應各式負載之不同，利用穩定狀態之溫控測試取得負載與空氣分子分離之熱力特徵，此兩分離特徵之取得，加上設計即已知的致動器、感測器、結構體等固定之熱傳模型，並基於最佳化之節能與快速反應之性能指標，決策評估溫、濕度期望信號之路徑。
而負載與空氣特徵識別技術，在測試槽於空載與置入負載的兩狀況，给與相同之溫度斜率穩定控制。經由測試槽內之乾球溫度t、相對濕度 與壓力p，取得空氣之熱力特徵，並間接估測置入負載其吸熱率與所佔之體積。

The environmental chambers ordinary use two independent simple PID controllers for temperature and humidity regulation, which cause more oscillations and energy wasting in the transient response. In order to adapt load with unknown characteristics and variable air in the chamber, this study use thermodynamic properties of air in the chamber to estimate volume and heat of load. The estimator needs the model of actuating system and the chamber with load to estimate the best temperature and humidity control path for performance and energy saving optimal control.
This study identifies the load characteristics and the volume of air occupied in the chamber, the thermodynamic theory and the identification technique are employed. The test results indicate that the method is feasible and predicable.

誌謝 ii
摘要 iii
Abstract iv
目錄 v
圖目錄 viii
表目錄 xiii
符號說明 xiv
第一章、 導論 1
1.1 研究背景 2
1.1.1 傳統環測設備架構 2
1.1.2 溫、濕度獨立控制 4
1.2 研究動機 4
1.3 文獻回顧 8
1.4 研究目的 9
第二章、 測試槽內之負載與空氣特徵 10
2.1 空氣熱力性質 10
2.1.1 飽和水蒸汽壓力 10
2.1.2 濕度參數 11
2.1.3 飽和的濕度參數 12
2.1.4 基於理想氣體的空氣混合物 14
2.1.5 絕熱飽和溫度與露點溫度 17
2.2 空氣與負載之特徵分離 21
第三章、 負載與空氣特性測試系統之設計 24
3.1 結構設計 24
3.2 冷凍設計 26
3.3 電控設計 31
3.4 溫、濕度控制器之設計 33
3.5 識別信號之擷取 35
3.6 實驗之步驟 37
3.6.1 空載測試 37
3.6.2 置入負載測試 38
第四章、 實驗結果與分析 39
4.1 空載之特性 39
4.2 測試槽置入負載之特性 48
第五章、討論 58
參考文獻 59

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