【摘要】：能源一直是人們賴以生存的資本,日益嚴(yán)重的能源危機(jī)給世界人們敲響了警鐘,也促使各國大力推廣可再生能源。太陽能跨季節(jié)蓄能是一種新興的太陽能利用形式,可以有效提高太陽能利用率。但是這種環(huán)保節(jié)能的太陽能系統(tǒng)在中原地區(qū)的研究較少,鑒于此,本課題對太陽能跨季節(jié)蓄能供熱系統(tǒng)建立模型,對該系統(tǒng)在中原地區(qū)的應(yīng)用性能進(jìn)行分析。本文首先介紹了太陽利用的相關(guān)背景并進(jìn)行了理論分析,并對常見太陽能跨季節(jié)蓄能系統(tǒng)形式進(jìn)行介紹,文中選擇以熱水形式儲(chǔ)存太陽能能量。基于鄭州地區(qū)一棟200m2的住宅作為系統(tǒng)分析模型建筑,使用De ST軟件計(jì)算了該建筑的逐時(shí)熱負(fù)荷,以此為基礎(chǔ)對系統(tǒng)各部件進(jìn)行初步選型。接著在太陽能跨季節(jié)蓄能供熱系統(tǒng)運(yùn)行原理的基礎(chǔ)上,基于TRNSYS軟件建立了系統(tǒng)的仿真模型,并對該模型進(jìn)行驗(yàn)證,保證所建立模型的準(zhǔn)確性;利用建立的模型,對太陽能跨季節(jié)蓄能供熱系統(tǒng)中集熱器面積、水池體積、水池高徑比對系統(tǒng)的蓄熱性能進(jìn)行分析研究,研究表明:系統(tǒng)的蓄熱量隨高徑比的增加整體呈現(xiàn)增加的趨勢,在1.6~1.8之間達(dá)到最大值;在鄭州市的氣象條件下,系統(tǒng)較適宜的集熱器面積為35~40m2,相對應(yīng)的水池體積為50~60m3。在此條件下,太陽能跨季節(jié)蓄能供熱系統(tǒng)的蓄熱量為36~39GJ,系統(tǒng)的太陽能保證率為63%~72%,此時(shí)該系統(tǒng)在壽命期內(nèi)共節(jié)省了18362元,系統(tǒng)的回收期為9年。最后在對中原地區(qū)性能分析基礎(chǔ)上,基于建筑熱工分區(qū),選取四個(gè)代表性城市哈爾濱、長春、南京、福州,并對跨季節(jié)蓄能供熱系統(tǒng)在這四個(gè)地區(qū)的運(yùn)行性能進(jìn)行了適用性分析,得到這四個(gè)地區(qū)的太陽能保證率分別為49%、51%、77%、55%,為該系統(tǒng)在我國的大面積產(chǎn)業(yè)化推廣應(yīng)用奠定了理論基礎(chǔ)。
[Abstract]:Energy has always been the capital on which people depend for survival. The increasingly serious energy crisis has sounded the alarm bell for people all over the world and urged countries to vigorously promote renewable energy. Cross-seasonal solar energy storage is a new form of solar energy utilization, which can effectively improve solar energy utilization. However, there are few researches on this kind of solar energy system in Central Plains. In view of this, this paper establishes a model of solar energy storage heating system, and analyzes its application performance in Central Plains. In this paper, the background of solar energy utilization and its theoretical analysis are introduced, and the common solar energy storage system is introduced. In this paper, hot water is chosen to store solar energy. Based on a 200m2 residential building in Zhengzhou area as a system analysis model building, the hourly heat load of the building is calculated by using de ST software, based on which the initial selection of the system components is carried out. Then on the basis of the operation principle of solar energy cross-season energy storage heating system, the simulation model of the system is established based on TRNSYS software, and the model is verified to ensure the accuracy of the established model. The heat storage performance of collector area, pool volume and tank height to diameter ratio in solar energy cross-season energy storage heating system is analyzed. The results show that the heat storage capacity of the system increases with the increase of the ratio of height to diameter. Under the meteorological conditions in Zhengzhou, the optimum collector area is 35 ~ 40 m ~ (2) and the corresponding tank volume is 50 ~ (60) m ~ (3). Under this condition, the heat storage capacity of the solar energy storage heating system is 360.39GJ, and the solar energy guarantee rate of the system is 63.720.In this case, the system saves 18362 yuan in the lifetime, and the recovery period of the system is nine years. Finally, based on the performance analysis of the Central Plains, based on the building thermal zoning, four representative cities, Harbin, Changchun, Nanjing, Fuzhou, are selected. The applicability analysis of the cross-season energy storage heating system in these four regions has been carried out, and the solar energy guarantee rate of the four regions has been obtained, which is 49 / 51/ 7777 / 5555, respectively, which lays a theoretical foundation for the popularization and application of the system in China's large-scale industrialization.
【學(xué)位授予單位】：中原工學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU832

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