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研究生:張瀛仁
研究生(外文):Ying-Jen Chang
論文名稱:20倍拋物線槽型聚光器之聚光效率與幾何設計關係
論文名稱(外文):Relationship between Concentrative Efficiency and Geometric Design for 20X Parabolic Trough Concentrator
指導教授:艾和昌艾和昌引用關係
指導教授(外文):Herchang Ay
學位類別:碩士
校院名稱:國立高雄應用科技大學
系所名稱:應用工程科學研究所
學門:工程學門
學類:綜合工程學類
論文種類:學術論文
論文出版年:2010
畢業學年度:98
語文別:中文
論文頁數:70
中文關鍵詞:聚光效率槽型聚光器GaAs太陽電池
外文關鍵詞:concentrative efficiencyPTCGaAs solar cell
相關次數:
  • 被引用被引用:3
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:1
本研究利用反射方式將陽光聚集至高效能太陽電池上,藉由提升光輻射強度而增加太陽電池的電力產出,作為本研究之目標,實驗中也對光感測元件(光譜儀、日射儀)做校正,得到一經驗公式。
研究中以探討不同接收器大小以及貼附於其上的太陽電池規格,作為探討相對應於聚光器之間隙值依據,利用Pro_E繪製聚光器各機構,再將設計圖匯入光學模擬軟體Trace_Pro,針對所設計之拋物線槽型聚光器進行能量強度追蹤與光學效率分析,實驗條件設定四組間隙值分別獲得五個焦距位置,作為爾後實際測量太陽電池發電表現的位置。
模擬結果得到,在間隙值為10mm實驗組中,焦距位置73.5mm,其聚光倍率為19.1倍,可獲得IEC規範光不均勻度等級C,且光學效率為97%;而在間隙值5.5mm實驗組中,焦距位置72.6mm,其聚光倍率為30.3倍,光不均勻度等級也為C,且光學效率為90%。最後在實際利用太陽電池發電可得到14.5倍的發電量,有六成聚光效率。
聚光太陽電池模組的製作,主要可驗證模擬結果之確實性。比較實驗結果與模擬結果可發現:實驗上能量強度表現與模擬時系統有段差距,其問題是因為在聚光面的反射效率有30~40%光能量無法反射於接收面上,而其能量損失約等於與模擬結果之差值,在各焦距光能量分布表現與實際利用聚光器測量光強度時,其結果趨勢與模擬相符。未來將朝改良製程,完成可量產、質量輕、高效率、低耗能的拋物線槽型聚光器。
In this study, the reflection method is used to gather sunlight on high efficiency solar cells. To increase the solar cell efficiency by enhancing irradiance power is the goal of this research. In the experiment, photo sensors as the spectrophotometer and actinometer are calibrated to obtain an empirical formula.
In this study, the different receiver size and the solar cell attached to the receiver with corresponding concentrator gap width are discussed. Pro_E is used to design each mechanism of the concentrator and Trace_Pro optical software is used to simulate. This research aim at the parabolic trough concentrator we designed to track energy intensity and optical efficiency analysis. We obtained five focal widths from the four gap widths as the experimental condition to be the measurement position of the solar cell power generating.
From the simulation, when concentration ratio is 19.1X in the 10mm gap width and 73.5mm focal width, we can obtained IEC non-uniformity class C and optical efficiency 71%. Also, when concentration ratios 30.3X in the 5.5mm gap width and 72.6mm focal width, we can obtained IEC non-uniformity class C and optical efficiency 90%. Finally, 14.5X electricity and 60% concentrative efficiency can be obtained from the solar cell.
A product of the concentrative solar module is mainly to prove the simulation accuracy: a comparison shows the difference between the experimental energy intensity and simulation results. The main cause is about 30% to 40% irradiation from the reflective efficiency of concentrative plane could not be reflected on the receiver, the energy loss was almost equal to the simulate difference. The energy distribution in the focal length and light intensity measurement by using concentrator are coincidence between the experimental result and simulation. We will make a new module by improve manufacturing process to achieve mass production, light weight, high efficiency, and the low consuming energy in the future.
目錄
摘要 I
ABSTRACT II
致謝 IV
目錄 V
表目錄 VII
圖目錄 VIII
符號說明 X
第一章 緒論 11
1-1 前言 11
1-2 研究目的與動機 11
1-3 文獻回顧 12
1-4 研究方法 12
第二章 拋物線槽型聚光器設計 14
2-1 聚光型太陽電池介紹 14
2-2聚光器的種類 14
2-2-1折射式聚光器 15
2-2-2反射式聚光器 16
2-3拋物線槽型聚光器設計條件 16
2-3-1 設計條件 16
2-4拋物線定義 17
2-4-1拋物線特性 17
2-4-2拋物線邊界 18
第三章 光學分析方法 25
3-1光學模擬軟體 25
3-2聚光器繪製設計 25
3-2-1光學軟體參數設定 25
3-2-2訂定測量區域 26
3-3光學分析相關參數 26
3-4太陽光譜以及空氣值(AIR MASS) 28
第四章 實驗設備與方法 31
4-1 實驗設備 31
4-1-1 光譜儀及分析軟體 31
4-1-2 日射儀及資料擷取器 31
4-1-3 單點溫度量測儀器 31
4-1-4 實驗測試件 32
4-1-5 實驗測試件製作情況 32
4-1-6 利用光譜儀量測聚光器聚光程度 33
4-2 實驗流程 34
4-2-1實驗步驟 34
5-1 光譜儀與日射儀能量對應校正 43
5-2 接受面設置模擬數據分析整理 43
5-3 四種模式照度分布結果比較 45
5-4 太陽電池於拋物線反射聚光器下輸出功率 47
6-1結論 64
6-2 未來發展 65
6-2-1 提升系統效率方式 65
6-2-2 實驗設置改善方式 66
6-2-3 未來工作 66
參考文獻 67
個 人 簡 歷 70
參考文獻
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