本文選題：自然通風(fēng) + 垂直百葉傾角��； 參考：《安徽建筑大學(xué)》2015年碩士論文

【摘要】：我國建筑能耗占全年總能耗的30%左右,且隨著經(jīng)濟技術(shù)的發(fā)展,建筑能耗比例仍在增加。同時,人們對建筑室內(nèi)環(huán)境質(zhì)量的要求也越來越高。自然通風(fēng)是一種傳統(tǒng)技術(shù),它的優(yōu)點在于既降低能耗,又為室內(nèi)帶來良好的空氣環(huán)境。在這個迫切需要降低能源消耗、節(jié)約資源以及提高人們所處室內(nèi)環(huán)境質(zhì)量的時代,對建筑自然通風(fēng)的研究顯得尤為重要。本文通過大量的文獻調(diào)研,發(fā)現(xiàn)自然通風(fēng)是一種能夠改善建筑室內(nèi)環(huán)境的傳統(tǒng)技術(shù)。很好的利用自然通風(fēng),不僅能為人們帶來舒適感,同時還節(jié)約能源。由于建筑需要采用遮陽系統(tǒng),遮陽構(gòu)件對自然通風(fēng)影響較大。因此,本文重點研究垂直百葉對建筑自然通風(fēng)以及室內(nèi)熱環(huán)境的影響。以安徽合肥地區(qū)為例,首先利用建筑熱平衡原理、自然通風(fēng)量計算原理,計算出合肥地區(qū)全年可利用自然通風(fēng)小時數(shù),分析該地區(qū)自然通風(fēng)潛力。通過對合肥地區(qū)典型辦公建筑的調(diào)研,找出本文研究的目標建筑。所選建筑為一棟三層辦公樓,以其中一間辦公室為研究對象。該辦公室單體房間模型尺寸為6.0m×4.0m×3.6m,北面設(shè)有一個門M(尺寸:1.0m×2.1m),南面設(shè)有兩個窗C1、C2(尺寸:1.5m×1.8m),窗墻比為0.25,窗地比為0.225。室內(nèi)布置有一個辦公桌,三把辦公椅,一個沙發(fā),一個書柜,兩個茶幾,兩個盆栽。在自然通風(fēng)潛力較大的條件下,通過改變垂直百葉傾角和百葉寬度來設(shè)置工況,采用PHOENICS計算流體力學(xué)軟件以及ECOTECT軟件進行仿真模擬分析。結(jié)果表明:(1)通過對合肥地區(qū)自然通風(fēng)潛力的計算,在其他條件都相同的情況下,隨著建筑圍護結(jié)構(gòu)得熱量的增加,自然通風(fēng)潛力降低;(2)隨著百葉傾角θ從15°到165°的增大,室內(nèi)各點風(fēng)速呈波形變化,且波峰值與波谷值差值逐漸變小;(3)當(dāng)θ=90°時,即來流風(fēng)風(fēng)向與垂直百葉呈45°夾角時,室內(nèi)渦流區(qū)域面積最小,氣流組織均勻性最好;(4)隨著百葉間距d從0.1m到0.3m的增大,室內(nèi)各點風(fēng)速值呈波動變化;(5)在規(guī)定其他條件不變的情況下,隨著百葉間距的增大,室內(nèi)形成的穿堂風(fēng)區(qū)域逐漸向出風(fēng)口偏移;(6)垂直百葉的使用能夠在一定程度上提高室內(nèi)環(huán)境熱舒適度。當(dāng)采用垂直百葉時,全年總不舒適度比無垂直百葉時降低約2500度小時(Deg Hrs)。
[Abstract]:Building energy consumption in China accounts for about 30% of the total energy consumption in the whole year, and with the development of economy and technology, the proportion of building energy consumption is still increasing. At the same time, people to the building indoor environment quality also more and more high request. Natural ventilation is a traditional technology, which has the advantages of reducing energy consumption and bringing good indoor air environment. In this era, it is urgent to reduce energy consumption, save resources and improve the quality of indoor environment, so it is very important to study the natural ventilation of buildings. Through a lot of literature research, it is found that natural ventilation is a traditional technology which can improve the indoor environment of buildings. Good use of natural ventilation, not only for people to bring comfort, but also save energy. Because the building needs to adopt sunshade system, sunshade component has great influence on natural ventilation. Therefore, this paper focuses on the impact of vertical louvers on natural ventilation and indoor thermal environment. Taking Hefei area of Anhui Province as an example, the natural ventilation hours can be used in Hefei area in the whole year, and the potential of natural ventilation in this area is analyzed by using the principle of building heat balance and the calculation principle of natural ventilation quantity. Through the investigation of typical office buildings in Hefei area, the target buildings of this paper are found out. The selected building is a three-story office building, one of which is the object of study. The model size of the single room is 6.0m 脳 4.0m 脳 3.6m. there is a door M (size: 1.0m 脳 2.1mg / m) in the north and two windows (size: 1.5m 脳 1.8m / m) on the south side. The ratio of window to wall is 0.25 and the ratio of window to floor is 0.225.The model size of the single room is 6.0m 脳 4.0m 脳 3.6m. The interior is furnished with a desk, three office chairs, a sofa, a bookcase, two coffee tables and two potted plants. Under the condition of high natural ventilation potential, the working conditions were set by changing the vertical shutter inclination and the width of the shutters, and the PHOENICS computational fluid dynamics software and the ECOTECT software were used to simulate and analyze the working conditions. The results show that by calculating the natural ventilation potential in Hefei area, under the same conditions, the natural ventilation potential decreases with the increase of the heat value of the building enclosure structure.) with the increase of the inclination angle 胃 from 15 擄to 165 擄, the natural ventilation potential decreases with the increase of the heat value of the building enclosure. The wind speed at each point in the room changes in waveform, and the difference between the peak value and the trough value gradually becomes smaller. When 胃 ~ (90) 擄, that is, the angle between the wind direction of the incoming wind and the vertical louver is 45 擄, the area of the indoor eddy current region is the smallest. With the increase of the distance d from 0.1m to 0.3m, the wind velocity values of each point in the room fluctuate with the increase of the distance between the hundred lobes under the condition that other conditions are fixed, and with the increase of the distance between the blinds, the distribution uniformity of the air flow is the best. The use of vertical louvers can improve the thermal comfort of indoor environment to a certain extent. When the vertical leaf was adopted, the total uncomfortableness of the whole year was about 2500 degrees lower than that without the vertical 100 leaf, and the total uncomfortableness of the whole year was about 2500 degrees lower than that without the vertical leaf.
【學(xué)位授予單位】：安徽建筑大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU834.1

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本文編號：1966855