本文選題：百葉遮陽(yáng)雙層皮幕墻 + 光學(xué)性能參數(shù)��； 參考：《湖南大學(xué)》2015年碩士論文

【摘要】：百葉遮陽(yáng)雙層皮幕墻在夏熱冬冷地區(qū)應(yīng)用廣泛,但實(shí)際效果并不好,是因?yàn)闆](méi)有考慮其氣候適應(yīng)性問(wèn)題。百葉遮陽(yáng)雙層皮幕墻各薄層所吸收的輻射能又影響著百葉遮陽(yáng)雙層皮幕墻的熱工性能,從而影響著百葉遮陽(yáng)雙層皮幕墻建筑的能耗模擬和系統(tǒng)優(yōu)化,所以有必要研究百葉遮陽(yáng)雙層皮幕墻的光學(xué)模型。另外,國(guó)內(nèi)外關(guān)于百葉遮陽(yáng)雙層皮幕墻光學(xué)性能的實(shí)驗(yàn)研究并不多見(jiàn),不能為理論光學(xué)模型提供驗(yàn)證依據(jù)。因此,本文針對(duì)百葉遮陽(yáng)雙層皮幕墻光學(xué)性能展開(kāi)理論和實(shí)驗(yàn)研究,判斷主流的百葉遮陽(yáng)雙層皮幕墻光學(xué)模型的準(zhǔn)確性,為從事相關(guān)研究的人員提供參考。首先,結(jié)合凈輻射法和光線反射原理建立百葉非理想散射體時(shí)百葉光學(xué)模型,并實(shí)驗(yàn)驗(yàn)證所建立的百葉光學(xué)模型。探討不同入射角、百葉傾角、百葉材質(zhì)和百葉尺寸下百葉光學(xué)性能參數(shù)的變化情況。其次,介紹主要的計(jì)算透過(guò)體系光學(xué)性能的方法——射線追蹤法和界面能量平衡法。探討了二種數(shù)學(xué)模型計(jì)算不含遮陽(yáng)裝置的透過(guò)體系光學(xué)性能的準(zhǔn)確性。然后,分別結(jié)合所建立的百葉光學(xué)模型和射線追蹤法、界面能量平衡法建立百葉遮陽(yáng)雙層皮幕墻的光學(xué)模型,此二種模型均可計(jì)算出百葉遮陽(yáng)雙層皮幕墻的反射率、透過(guò)率、吸收率。最后,介紹了在夏熱冬冷地區(qū)實(shí)際氣候條件下所搭建的通風(fēng)式雙層皮幕墻實(shí)驗(yàn)平臺(tái)和實(shí)驗(yàn)方案等相關(guān)內(nèi)容。用室內(nèi)外太陽(yáng)總輻射及散射輻射的測(cè)量裝置,實(shí)驗(yàn)研究百葉遮陽(yáng)雙層皮幕墻的光學(xué)特性參數(shù)。并對(duì)計(jì)算百葉遮陽(yáng)雙層皮幕墻光學(xué)特性參數(shù)二種主要方法——界面能量平衡法和射線追蹤法進(jìn)行了實(shí)驗(yàn)驗(yàn)證與比較,探討誤差來(lái)源。結(jié)果表明:射線追蹤法和界面能量平衡法計(jì)算出百葉遮陽(yáng)雙層皮幕墻光學(xué)特性參數(shù)與實(shí)驗(yàn)結(jié)果存在較大誤差,但射線追蹤法更接近實(shí)驗(yàn)結(jié)果,在實(shí)際應(yīng)用中需多加考量。
[Abstract]:The shutter sunshade double skin curtain wall is widely used in hot summer and cold winter area, but the actual effect is not good because it does not consider its climate adaptability. The radiation energy absorbed by each thin layer of the shutter sunshade double skin curtain wall affects the thermal performance of the shutter double skin curtain wall, thus affecting the energy consumption simulation and system optimization of the shutter double skin curtain wall building. Therefore, it is necessary to study the optical model of the shutter double-layer curtain wall. In addition, there are few experimental studies on the optical properties of the double-layer curtain wall in China and abroad, which can not provide a basis for the verification of the theoretical optical model. Therefore, the theoretical and experimental research on the optical properties of the shutter double-layer curtain wall is carried out in this paper, and the accuracy of the main optical model of the shutter double-layer curtain wall is judged, which provides a reference for the related researchers. First of all, the optical model of a hundred leaf nonideal scatterers is established by combining the net radiation method and the principle of light reflection, and the experimental results show that the optical model is established. The changes of the optical properties of the blinds with different incident angles, leaf inclination angles, shutter materials and shutter sizes were investigated. Secondly, ray tracing method and interface energy balance method are introduced to calculate the optical properties of the transmission system. The accuracy of two mathematical models for calculating the optical properties of the transmission system without shading is discussed. Then, the optical model of the shutter double-layer curtain wall is established by combining the established optical model with the ray tracing method and the energy balance method of the interface. These two models can calculate the reflectivity and transmittance of the shutter double-layer curtain wall. Absorptivity. Finally, the experimental platform and scheme of ventilation double skin curtain wall in hot summer and cold winter area are introduced. In this paper, the optical characteristic parameters of the double-layer sunshade curtain wall are experimentally studied by means of the measurement device of total solar radiation and scattering radiation in and out of the room. The experimental verification and comparison of the two main methods for calculating the optical characteristic parameters of the double-layer sunshade curtain wall, I. e., the energy balance method at the interface and the ray tracing method, are carried out, and the error sources are discussed. The results show that there is a large error between the experimental results and the parameters of optical properties calculated by the ray tracing method and the interface energy balance method, but the ray tracing method is closer to the experimental results and needs more consideration in practical application.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU227;TU113

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