發(fā)布時間：2018-06-13 17:13

  本文選題：被動房 + 建筑能耗�。� 參考：《南京工業(yè)大學》2015年碩士論文

【摘要】：近年來,國內(nèi)居住建筑節(jié)能正向著高水平的目標不斷前進,德國被動房代表著建筑最高水準,但德國被動房不適應夏熱冬冷地區(qū)氣候,在夏熱冬冷地區(qū)推廣被動房,需要綜合分析后確定,還不能直接采用德國被動式建筑的技術(shù)標準。本文主要采用數(shù)值模擬的方法研究被動房在夏熱冬冷地區(qū)適應性問題和適合夏熱冬冷地區(qū)的被動房圍護結(jié)構(gòu)熱工參數(shù)取值,其中通過實驗的方法來驗證數(shù)值模擬計算的準確性。本文提出夏熱冬冷地區(qū)被動房標準,即通過圍護結(jié)構(gòu)熱工體系的改善,使得供暖空調(diào)負荷達到最低(不包括新風和生活熱水)。在夏熱冬冷地區(qū)中選取南京城市為例,選取南京地區(qū)典型居住建筑采用建筑能耗模擬軟件DeST-h建模,分析其全年空調(diào)供暖能耗。居住建筑的能耗與供暖空調(diào)使用模式有關(guān)。通常居住建筑都是間歇使用,但我國居住建筑節(jié)能標準計算均以連續(xù)使用為計算基準,為與之對應,本文仍采用連續(xù)模式為計算基礎(chǔ),所有的房間均同時參與供暖空調(diào)。通過本文的研究,得出以下結(jié)論：(1)德國被動房適應寒冷地區(qū)的氣候,在夏熱冬冷地區(qū)推廣被動房,不能直接套用德國被動房技術(shù)標準。(2)夏熱冬冷被動房的標準,應該是通過圍護結(jié)構(gòu)熱工體系的改善,使得居住建筑供暖空調(diào)負荷達到最低(不包括新風和生活熱水),這時所對應的圍護結(jié)熱工體系可作為夏熱冬冷地區(qū)被動房的推薦標準。(3)不開窗通風時,降低外墻和外窗傳熱系數(shù),室內(nèi)溫度超過29℃的天數(shù)會大幅增加,過渡季附加空調(diào)負荷顯著上升。夏熱冬冷地區(qū)過度季適時開窗通風可有效減少過度季室內(nèi)超溫時間。(4)連續(xù)運行模式下,0.1h-1換氣次數(shù)時,窗戶傳熱系數(shù)取1.5 w/m2·K、墻體傳熱系數(shù)取0.4 w/m2·K,供暖空調(diào)負荷已趨于穩(wěn)定,可以此參數(shù)作為夏熱冬冷地區(qū)被動房的推薦值。由于實際上室內(nèi)換氣次數(shù)需達到1次左右,室內(nèi)還要配置新風換氣裝置,窗戶氣密性保持6級氣密性即可。如果供暖空調(diào)系統(tǒng)采用間歇運行模式,以上熱工參數(shù)還需調(diào)整。
[Abstract]:In recent years, the energy efficiency of domestic residential buildings is advancing to a high level. Passive housing in Germany represents the highest building level. However, passive housing in Germany does not adapt to the climate in hot summer and cold winter, so passive housing is popularized in hot summer and cold winter. The technical standard of German passive building should not be adopted directly after comprehensive analysis. In this paper, the method of numerical simulation is mainly used to study the adaptability of passive housing in hot summer and cold winter area and the thermal parameter selection of passive housing enclosure structure suitable for hot summer and cold winter area, among which the accuracy of numerical simulation calculation is verified by experimental method. This paper puts forward the passive house standard in hot summer and cold winter area, that is, through the improvement of thermal system of enclosure structure, the load of heating and air conditioning can reach the minimum (excluding fresh air and domestic hot water). In the hot summer and cold winter area, Nanjing city is selected as an example, and the building energy consumption simulation software DeST-h is used to model the typical residential buildings in Nanjing area, and the annual energy consumption of air conditioning and heating is analyzed. The energy consumption of residential buildings is related to the use mode of heating and air conditioning. Usually residential buildings are intermittently used, but the standard calculation of energy saving of residential buildings in our country takes continuous use as the basis of calculation, and corresponding, this paper still uses the continuous mode as the basis of calculation, all the rooms participate in the heating and air conditioning at the same time. Through the study of this paper, the following conclusions can be drawn: (1) the passive housing in Germany adapts to the climate in the cold area, and the passive room in the hot summer and cold winter area can not be directly applied to the technical standard of the German passive room in the hot summer and the cold winter, and the standard of the passive room in the hot summer and cold winter can not be directly applied. It should be through the improvement of the thermal system of the enclosure, When the heating and air conditioning load of residential buildings reaches the minimum (excluding fresh air and domestic hot water, the corresponding envelop thermal system can be used as the recommended standard for passive houses in hot summer and cold winter areas.) when windows are not opened and ventilated, When the heat transfer coefficient of exterior wall and exterior window is reduced, the days of indoor temperature exceeding 29 鈩，

本文編號：2014760