高壓儲氫容器之研究與開發

Research and Development of High Pressure Vessel for Storage of Hydrogen

王重斌(Wang Jhongbin)

指導教授 ： 胡惠文

國立屏東科技大學/工學院/車輛工程系所/碩士(2013年)

https://doi.org/10.6346/NPUST.2013.00173

摘要

本研究之目的是開發一高壓儲氫容器，適用於氫燃料電池。該容器的設計使用鋁合金內膽和碳纖維纏繞。鋁合金內膽包含筒身以及端蓋透過TIG焊將其結合。由於鋁合金銲接後其強度會大幅下降，因此在銲接後透過T6熱處理補強其強度。硬度以及金相實驗主要目的為檢查銲道品質以及熱處理成效，而外層的纖維纏繞其主要目的為補強整體強度與剛性。+-15°的纏繞主要目的為補強Z方向強度而90°則是補強θ方向強度。在分析方面是使用ANSYS建立有限元模型進行分析，其中所使用之材料機械性質皆是實際透過拉伸實驗取得，最後透過自行設計之纏繞機將纖維纏繞於鋁合金內膽上，完成纏繞後透過模態分析實驗驗證有限元素模型，透過水靜壓力實驗測試壓力容器的最高耐壓，結果顯示試作品II在三次的耐壓實驗中最高壓力達36MPa且並未產生洩漏。

關鍵字

儲氫容器 ； 鋁合金內襯 ； TIG銲接 ； T6熱處理 ； 纖維纏繞 ； 複合材料疊層 ； 實驗模態分析 ； 水靜壓力測試

並列摘要

The purpose of this research is to develop a high pressure vessel for the storage of hydrogen for fuel cell. The vessel is designed using aluminum liner and filament winding. Aluminum liner, consists of cylinder and bulkheads, is made by means of TIG welding. It is noted that aluminum welding will sacrifice its strength. Thus, Heat treatment of T6 is used to compensate the strength. Hardness test and metallography are used to inspect the quality of heat treatment. Filament winding is used to reinforce the stiffness and strength of aluminum liner eventually. Fiber-orientation of +-15 degree is adopted for the longitudinal reinforcement of pressure vessel, and 90 degree is for radial reinforcement. A commerical code ANSYS is used to establish the finite element model of pressure vessel and to design the composite laminates. Tensile test is used to obtain the mechanical properties of aluminum and carbon fiber composites. A winding machine is designed to fabricate the pressure vessel. Experiment modal analysis is used to validate the finite element model. Hydraulic test is used to examine the maximum internal pressure of the vessel. Experimental data shows that no leakage occurs in the
pressure vessel at the 36 MPa.

並列關鍵字

pressure vessel ； aluminum linear ； TIG welding ； T6 heat treatment ； filament winding ； composite laminate ； experimental modal analysis ； hydraulic test

參考文獻

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