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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/11077

    Title: 小型金屬平板集熱器之集熱性能研究
    其他題名: The Study of the Thermo Performance of Small Metal Plate Collector
    Authors: 蘇茂源
    Mau-Yuan Su
    指導教授: 陳長仁
    Keywords: 金屬平板式集熱器;集熱性能;熱對流係數;放射率
    metal plate collector;thermo correcting performance;heat convection coefficient;emissivity
    Date: 2010
    Issue Date: 2010-10-07 16:08:22 (UTC+8)
    Abstract: 本研究之目的是評估小型金屬平板式集熱器,集熱性能與效率。針對單層強化玻璃、單層優白玻璃、雙層優白玻璃等不同面蓋玻璃,單一量測可見光透射率。使用相同條件之集熱器量測整體反射率,反射率越小則太陽輻射可入射越多。
    This research aims to evaluate collecting ability and efficiency of small metallic flat plate collector. Luminous transmittance of visible light penetrating through various types of cover glasses, such as single-layer, super clear single-layer, and super clear double-layer glasses were measured. Collectors with same conditions were used to measure overall reflectivity, the smaller reflectivity the more solar radiation penetrating through.
    Single-layer, super clear single-layer, super clear double-layer glasses, and stainless shell as single element were experimented for heat-transfer characteristic. The result of the experiment simulating single-sided natural convection and heat insulation showed that the surfaces of glass and stainless shells had different h (heat convection coefficient) and ε (reflectivity) at each ℃ point during temperature raising, thus its heat convection and radiation calculated had higher accuracy than single average value.
    In the 6-hour experiment of these three glasses combining collectors respectively, temperature raise of the collectors recorded displayed that efficiency of the collectors were lowering with time due to increasing of temperature. The best heat efficiency section, 96% of the highest temperature of the temperature raising curve, increased heat efficiency of the collectors to 15.6% on the single-layer glass, 16.6% on the super clear single-layer glass, and 17.4% on the super clear double-layer glass.
    Appears in Collections:[機械工程系所] 博碩士論文

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