辦公建筑內(nèi)部負(fù)荷擾量的特性分析與能耗預(yù)測
[Abstract]:Internal factors account for a considerable proportion of the factors affecting building load and energy consumption, and with the enhancement of thermal characteristics of building envelopes, the impact of external factors on the internal environment of buildings decreases and the role of internal factors becomes increasingly prominent. At the same time, there is no technical system about the internal factors in energy saving, so it is necessary to study the factors that affect the load and energy consumption inside the building.
In order to analyze the internal factors of buildings, we must first define the "internal load disturbance". By analyzing the mechanism of the internal load disturbance of office buildings, this paper summarizes the internal factors affecting the building load, including indoor temperature and humidity setting, personnel activities, equipment use, lighting use and the degree of window opening. Based on the idea of "people-oriented", this paper puts forward the definition and analytic formula of internal load disturbance (internal disturbance for short).
In order to analyze the characteristics of internal disturbance, the investigation of typical office buildings in Tianjin was carried out. The investigation was divided into three steps, including on-site investigation and questionnaire, observation, recording personnel activities, equipment use and lighting use information. For indoor personnel, it is found that the average occupancy rate of multi-person office presents a "bimodal distribution" feature, which can be fitted by cubic polynomial, and the fitting accuracy is about 0.9. For the main office equipment computer, it is demonstrated that the instantaneous power is a random process, and the Markov chain Monte Carlo (MC) is used. MC) method is used to analyze computer power. For other equipments and lamps, the typical "0-1" characteristic of their power is obtained because of their application rules and control methods, and the power models of other equipments and lamps are established.
Based on the above models, a direct energy consumption prediction model caused by internal disturbance is established, and the feasibility of the method is verified by an example analysis.
【學(xué)位授予單位】:天津大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TU111.195
【共引文獻(xiàn)】
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