本文選題：地下埋管　切入點(diǎn)：土壤　出處：《西安建筑科技大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：土壤新風(fēng)換熱系統(tǒng)是利用淺層地表土壤中所蘊(yùn)藏的冷熱量，對室外空氣進(jìn)行冷卻和加熱的系統(tǒng)。它可以實(shí)現(xiàn)對建筑物的供冷和供熱，或者用于降低空調(diào)系統(tǒng)新風(fēng)的夏季冷負(fù)荷和冬季熱負(fù)荷；由于其系統(tǒng)簡單，運(yùn)行能耗低，故是一種應(yīng)用前景廣闊的可再生能源利用技術(shù)。 本文的研究對象是地下埋管土壤新風(fēng)換熱系統(tǒng)，研究的主要目的是為了完成陜西省西安市漢長安城直城門遺址博物館項(xiàng)目的地下埋管土壤新風(fēng)換熱系統(tǒng)設(shè)計(jì)。通過研究：本文歸納整理出了濕陷性黃土熱物性的計(jì)算方法，以及土壤溫度分布計(jì)算模型；并分析了土壤溫度的變化特性，即溫度波的衰減和延遲。 通過分析空氣在地下埋管內(nèi)與土壤的傳熱過程，建立了新風(fēng)流經(jīng)地下埋管時(shí)參數(shù)變化計(jì)算模型；并借助該模型分析了土壤物性、通風(fēng)時(shí)間、地埋管長度、地埋管埋深、風(fēng)速（風(fēng)量）、地埋管管徑、進(jìn)風(fēng)溫度等因素對地下埋管土壤新風(fēng)換熱系統(tǒng)出口空氣溫度的影響；討論了該種系統(tǒng)形式在全國應(yīng)用的可行性。分析研究的結(jié)果，為實(shí)際工程應(yīng)用地下埋管土壤新風(fēng)換熱系統(tǒng)提供了參考數(shù)據(jù)。 在理論研究的基礎(chǔ)上，本文結(jié)合西安地區(qū)氣象條件和土壤溫度分布特點(diǎn)，對漢長安城直城門遺址博物館項(xiàng)目的土壤新風(fēng)換熱系統(tǒng)進(jìn)行了設(shè)計(jì)。從設(shè)計(jì)條件、系統(tǒng)方案、設(shè)計(jì)計(jì)算等角度給出了地下埋管土壤新風(fēng)換熱系統(tǒng)在建筑中應(yīng)用的設(shè)計(jì)方法。最后，利用上述項(xiàng)目的設(shè)計(jì)數(shù)據(jù)和預(yù)算定額從初投資、運(yùn)行費(fèi)用等幾方面對地下埋管土壤新風(fēng)換熱系統(tǒng)的經(jīng)濟(jì)性進(jìn)行了分析。
[Abstract]:The soil fresh air heat transfer system is a system for cooling and heating the outdoor air by using the cold heat contained in the shallow surface soil. It can realize the cooling and heating of buildings. Or it can be used to reduce the summer cooling load and winter heat load of fresh air in air conditioning system, because of its simple system and low energy consumption, it is a kind of renewable energy utilization technology with broad application prospect. The research object of this paper is the new wind heat transfer system of underground buried soil. The main purpose of the study is to complete the design of the new wind heat transfer system of buried soil soil for the project of Zhichengmen Museum in Han'an City, Shaanxi Province. Through the research, the calculation methods of thermal properties of collapsible loess are summarized and sorted out in this paper. The characteristics of soil temperature variation, namely the attenuation and delay of temperature wave, are analyzed. Based on the analysis of the heat transfer process between air and soil in underground buried pipes, the calculation model of parameter change of new air flow through underground buried pipes is established, and the properties of soil, ventilation time, length of buried pipes and buried depth of buried pipes are analyzed with the help of this model. The effect of wind speed (wind volume, buried pipe diameter, inlet air temperature, etc.) on the outlet air temperature of underground buried soil fresh air heat transfer system is discussed, and the feasibility of the application of this system in China is discussed. It provides reference data for the application of underground buried pipe soil fresh air heat transfer system in practical engineering. On the basis of theoretical research, this paper designs the soil fresh wind heat transfer system of the Museum of Zhichengmen ruins in Chang'an City of Han Dynasty, based on the meteorological conditions and soil temperature distribution characteristics in Xi'an region. The design method of the underground buried pipe soil fresh air heat transfer system applied in the building is given from the angle of design and calculation. Finally, the design data and budget quota of the above project are used to invest from the initial stage. The economy of underground buried pipe soil fresh air heat transfer system is analyzed in terms of operating cost.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU83

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