| Summary: | 碩士 === 元智大學 === 機械工程學系 === 92 === An experimental investigation of mixed convection mass transfer from only two tandem cylinders or two tandem cylinders and a plate, the flow of a CuSO4＋H2SO4＋H2O solution will be carried in an inclined rectangular channel with an electrochemical system .
The purpose of the present study is to investigate laminar fully developed flow in inclined rectangular channels with the types of the boundary of test section are: (A) two cylinders are cathode and top plate is anode (B) two cylinders are anode and top plate is cathode (C) the left cylinder is cathode and the right cylinder is anode (D) the left cylinder is anode and the right cylinder is cathode. The influence of the mass transfer rate and the boundary types between the sources has been investigated. The experiments would include three parts : (1)inclined angle θ= 0°(2)inclined angle θ> 0° (3)inclined angle θ< 0°.
To visualize the flow, the shadowgraph technique will be used. Electrical measurements will be used to obtain mass transfer rates and to infer a Sherwood number. The ranges of the parameters in the work are Ar=1, Sc=1700~2400, Re=50~300, Gr,m = 9.45×105 ,θ= -15°~ 15°, d / H = 0.25, s /d=2
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