液壓驅動之微電源產生器--—設計、製造與測試

Design, Fabrication and Testing of Micro Power Generation by Pressure-Driven Flow

楊 玨(Chueh Yang)

指導教授 ： 曾繁根 ； 錢景常

國立清華大學/原子科學院/工程與系統科學系/碩士(2007年)

摘要

本研究開發出一含有微米流道之元件，可以直接將機械能轉換為電能。初步計畫利用液壓梯度作為動力來源，經過此能量轉換元件，就可以直接轉換為電能。且應用電雙層理論與電動力學中的流動電位(streaming potential)現象，將流體之壓降直接轉換為電能，稱為微電源產生器。液壓驅動之微電源產生器所能產生的最大電流為8X10-9A，最大電位為0.9V。此微電源產生器所產生的電壓值會隨著工作流體濃度的減少而增加，但低至一臨界值時，電壓會達到一飽和值或突然下降。且流道的設計與材質會影響大大的微電源產生器發電。經過氧電漿處理的PDMS其表面之ZETA電位非固定值，會隨者隨著時間而減少。

關鍵字

液壓驅動 ； 電雙層

並列摘要

This study conducts experimental investigation associated with energy transfer by using a device with a microchannel.. Our experimental results verify that the design and material of channel strongly influence the power .efficiency; the best voltage and current obtained is 0.9V and 8X10-9A in our experiments. With the decrease of the electrolyte concentration, the streaming potential increases. The streaming potential held at a saturated value or dramatically decay when the electrolyte concentration is below a certain critical value(10-7M).The streaming potential of the device with the oxidized PDMS slightly decay, as the ZETA potential of the oxidized PDMS surface is not constant.

參考文獻

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