【摘要】：針對當(dāng)前建筑圍護(hù)結(jié)構(gòu)能耗檢測傳統(tǒng)方法和手段存在的諸多限制和弊端,提出了一種對建筑圍護(hù)結(jié)構(gòu)整體的能耗特性進(jìn)行檢測的方法。該方法關(guān)注建筑圍護(hù)結(jié)構(gòu)整體隔熱性能,而不是以往單純對圍護(hù)結(jié)構(gòu)傳熱系數(shù)的檢測。以室內(nèi)外溫度的相關(guān)系數(shù)和方差為基本的理論依據(jù),將相關(guān)系數(shù)和方差比作為評價建筑圍護(hù)結(jié)構(gòu)能耗大小的等效熱工參數(shù)指標(biāo)。通過室外環(huán)境溫度和室內(nèi)溫度之間的相關(guān)系數(shù)和方差比,不僅能夠衡量不同建筑圍護(hù)結(jié)構(gòu)的隔熱效果和能耗大小,而且還可以評價相同建筑圍護(hù)結(jié)構(gòu)時,空調(diào)系統(tǒng)的運(yùn)行質(zhì)量的優(yōu)劣。首先建立了一種等效能耗模型,將建筑物復(fù)雜圍護(hù)結(jié)構(gòu)簡化成具有單層圍護(hù)結(jié)構(gòu)的規(guī)則立方體。通過對簡化圍護(hù)結(jié)構(gòu)的傳熱過程的理論分析,提出了兩種等效熱工參數(shù)指標(biāo),即相關(guān)系數(shù)和方差比,并進(jìn)行了理論推導(dǎo)。結(jié)果表明,二者在建筑圍護(hù)結(jié)構(gòu)隔熱效果的檢測上具有比較好的一致性。相關(guān)系數(shù)和方差比的數(shù)值越小,建筑圍護(hù)結(jié)構(gòu)的隔熱效果越好；反之,相關(guān)系數(shù)和方差比的數(shù)值越大,建筑圍護(hù)結(jié)構(gòu)的隔熱效果越差。在理論分析基礎(chǔ)上,采用數(shù)值方法對兩種等效熱工參數(shù)指標(biāo)進(jìn)行了模擬,通過計算求得室內(nèi)外溫度時間序列的離散值；再根據(jù)統(tǒng)計學(xué)原理對其處理,求得相關(guān)系數(shù)和方差比指標(biāo)并進(jìn)行了綜合分析。結(jié)果驗證了理論分析的結(jié)論,同時發(fā)現(xiàn)方差比相對相關(guān)系數(shù)具有相對更好的穩(wěn)定性。在實驗室內(nèi)搭建簡化圍護(hù)結(jié)構(gòu)模型的測試平臺,采集封閉空間和外界環(huán)境溫度數(shù)據(jù)并處理,可得外界環(huán)境溫度和封閉空間溫度之間的相關(guān)系數(shù)和方差比。實驗結(jié)果與數(shù)值計算結(jié)果基本趨于一致,表明了建筑圍護(hù)結(jié)構(gòu)等效熱工參數(shù)測試方法評估建筑圍護(hù)結(jié)構(gòu)能耗水平是具有可行性的。將該方法拓展應(yīng)用于南京某醫(yī)院一幢實際建筑的室內(nèi)外溫度數(shù)據(jù),并分別選取空調(diào)期和非空調(diào)期一個月的溫度數(shù)據(jù),進(jìn)行相關(guān)系數(shù)和方差比處理和比較。結(jié)果表明,室內(nèi)外溫度數(shù)據(jù)相關(guān)系數(shù)和方差比可以反映空調(diào)系統(tǒng)運(yùn)行質(zhì)量的高低,相關(guān)系數(shù)和方差比的數(shù)值越小,空調(diào)的運(yùn)行質(zhì)量就越高；反之,空調(diào)運(yùn)行質(zhì)量越低。研究結(jié)果表明,室內(nèi)外溫度的相關(guān)系數(shù)和方差比可以作為一種新的能耗指標(biāo)衡量建筑圍護(hù)結(jié)構(gòu)的能耗的大小,并且能夠?qū)照{(diào)系統(tǒng)的運(yùn)行質(zhì)量進(jìn)行評價。
[Abstract]:In view of the limitations and drawbacks of the traditional methods and means of energy consumption detection of building envelope structure, a method for detecting the energy consumption characteristics of building envelope structure is proposed. This method focuses on the overall thermal insulation performance of the building envelope structure, rather than simply testing the heat transfer coefficient of the envelope structure in the past. Based on the correlation coefficient and variance of indoor and outdoor temperature, the correlation coefficient and variance ratio are taken as the equivalent thermal parameters to evaluate the energy consumption of building enclosure. Through the correlation coefficient and variance ratio between outdoor ambient temperature and indoor temperature, not only the heat insulation effect and energy consumption of different building envelope structures can be measured, but also the same building envelope structure can be evaluated. The operation quality of air conditioning system is good and bad. In this paper, an equivalent energy consumption model is established to simplify the complex building envelope structure into a regular cube with a single-layer envelope structure. Based on the theoretical analysis of the heat transfer process of the simplified envelope structure, two kinds of equivalent thermal parameter indexes, namely, correlation coefficient and variance ratio, are put forward, and the theoretical derivation is carried out. The results show that the two methods have good consistency in the detection of thermal insulation effect of building enclosure. The smaller the value of correlation coefficient and variance ratio, the better the thermal insulation effect of building enclosure structure; conversely, the greater the value of correlation coefficient and variance ratio, the worse the thermal insulation effect of building envelope structure. On the basis of theoretical analysis, two kinds of equivalent thermal parameters are simulated by numerical method, and the discrete values of indoor and outdoor temperature time series are obtained by calculation. According to the principle of statistics, the correlation coefficient and variance ratio index are obtained and analyzed synthetically. The results verify the conclusion of the theoretical analysis and show that the variance is more stable than the relative correlation coefficient. The test platform of simplified enclosure structure model is set up in the laboratory, and the data of the enclosed space and the ambient temperature are collected and processed. The correlation coefficient and variance ratio between the ambient temperature and the closed space temperature can be obtained. The experimental results are consistent with the numerical results, which indicates that it is feasible to evaluate the energy consumption level of the building enclosure structure by measuring the equivalent thermal parameters of the building enclosure structure. The method is extended to the indoor and outdoor temperature data of a real building in a hospital in Nanjing, and the temperature data of one month in the air conditioning period and the non air conditioning period are selected, and the correlation coefficient and variance ratio are processed and compared. The results show that the correlation coefficient and variance ratio of indoor and outdoor temperature data can reflect the operating quality of air conditioning system. The smaller the value of correlation coefficient and variance ratio, the higher the quality of air conditioning operation; conversely, the lower the operation quality of air conditioning system. The results show that the correlation coefficient and variance ratio of indoor and outdoor temperature can be used as a new energy consumption index to measure the energy consumption of building enclosure structure, and the operation quality of air conditioning system can be evaluated.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU111.4;TU111.195

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