北京地區(qū)高層綠色辦公建筑應(yīng)用自然通風(fēng)的相關(guān)研究
[Abstract]:The problem of high energy consumption of high-rise and super high-rise buildings has become increasingly prominent in the environment of carrying out the Green Building Evaluation Standard in an all-round way by our government. Natural ventilation technology can save energy effectively in the whole life cycle of buildings, but it is seldom used in the design of high-rise and super-high-rise office buildings in China. It is urgent to solve the problem of using natural ventilation technology in green office buildings in cold areas such as Beijing. The main contents of this paper are as follows: (1) analyzing the present situation of natural ventilation in high-rise green buildings at home and abroad, exploring and popularizing high-rise buildings, The difficulties of natural ventilation technology for super high-rise green buildings are discussed. (2) the vertical distribution of hot pressure and the influence of natural ventilation on a high-rise building in Beijing during the transition season are grasped through the field measurements. This paper analyzes the ventilation effect of natural ventilation by window type ventilator in high-rise buildings and the energy saving potential of natural ventilation based on typical meteorological and climatic data of Beijing. (3) Vertical height of core well of a super high-rise building in transition season in Beijing The hot pressure and wind pressure distribution are measured. (4) the mathematical model of natural ventilation for super high-rise building is established by using multi-area network simulation software CONTAMW and computational fluid dynamics software PHOENICS. The correctness of the mathematical model is verified by comparison with the measured values. (5) the natural ventilation effect of buildings under the combined action of hot pressure and wind pressure is discussed by using the model. Based on the simulation and analysis of the effect of natural ventilation in a large number of office rooms with different heights, this paper puts forward the strategy of using natural ventilation to realize energy saving in Beijing high-rise office buildings, which provides a reference for the green operation design of high-rise buildings. The measured and simulated results show that natural ventilation can reduce the height of "chimney effect" neutral surface in high-rise buildings. Passive natural ventilation technology is more suitable to be used in the upper green buildings below the neutral surface, and the higher floors should be combined with auxiliary structures and facilities to enhance the natural ventilation power, thus improving the overall natural ventilation effect of the high-rise green buildings. Realize the energy saving and environmental protection effect in the whole life cycle of green high-rise building.
【學(xué)位授予單位】:北京工業(yè)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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