發(fā)布時(shí)間：2018-05-20 15:24

  本文選題：溫濕度獨(dú)立控制 + 溶液除濕　； 參考：《沈陽(yáng)建筑大學(xué)》2015年碩士論文

【摘要】：我國(guó)人均能源擁有量較低,隨著生活水平的不斷提高和室外環(huán)境逐漸惡劣,人們對(duì)室內(nèi)生活環(huán)境要求也逐漸升高,空調(diào)的使用越來越普及,傳統(tǒng)空調(diào)系統(tǒng)也暴露出越來越多的問題與不足,因此,基于溫濕度獨(dú)立控制溶液除濕空調(diào)系統(tǒng)應(yīng)運(yùn)而生。目前有很多學(xué)者關(guān)于該系統(tǒng)在高濕地區(qū)的應(yīng)用進(jìn)行了研究,但是對(duì)其在人口密集、空調(diào)需求緊迫、耗能較多的夏熱冬冷地區(qū)的研究較為缺乏。本文在國(guó)內(nèi)外對(duì)溫濕度獨(dú)立控制技術(shù)和除濕技術(shù)研究的基礎(chǔ)上,主要從以下幾方面進(jìn)行研究:(1)總結(jié)常規(guī)空調(diào)系統(tǒng)的不足之處,分析基于溫濕度獨(dú)立控制技術(shù)的溶液除濕空調(diào)系統(tǒng)的特點(diǎn)、節(jié)能效果和應(yīng)用前景,在前人研究的基礎(chǔ)上設(shè)計(jì)適合本課題的溶液除濕系統(tǒng);(2)利用fluent數(shù)值模擬軟件對(duì)系統(tǒng)中的除濕填料塔建立物理模型和數(shù)學(xué)模型,采用體積平均法和多孔介質(zhì)模型,對(duì)從文獻(xiàn)[55]隨機(jī)選取的六組數(shù)據(jù)進(jìn)行模擬,將結(jié)果與實(shí)驗(yàn)數(shù)據(jù)進(jìn)行對(duì)比分析,結(jié)果表明模擬結(jié)果與實(shí)驗(yàn)數(shù)據(jù)基本一致,且兩者之間的誤差率在20%以內(nèi),驗(yàn)證了該模型具有較高的可信度;(3)對(duì)夏熱冬冷地區(qū)夏季室外空氣參數(shù)進(jìn)行分析,并利用所建模型對(duì)該地區(qū)的12個(gè)城市的室外參數(shù)進(jìn)行模擬研究,結(jié)果表明,溶液除濕系統(tǒng)的除濕效率在60%左右,部分地區(qū)高達(dá)62%,說明溶液除濕在夏熱冬冷地區(qū)具有良好的應(yīng)用前景;(4)本文以南京某辦公樓為例,從初投資和運(yùn)行能耗兩方面,對(duì)溫濕度獨(dú)立控制溶液除濕空調(diào)系統(tǒng)和常規(guī)空調(diào)系統(tǒng)經(jīng)濟(jì)性進(jìn)行對(duì)比分析,結(jié)果表明,初投資方面,溶液除濕獨(dú)立新風(fēng)系統(tǒng)的初投資比常規(guī)空調(diào)系統(tǒng)多533900元;運(yùn)行能耗方面,溶液除濕獨(dú)立新風(fēng)系統(tǒng)的運(yùn)行總能耗比常規(guī)空調(diào)系統(tǒng)少57321.6kWh,節(jié)省能耗16.43%;溫度側(cè)處理若采用天然冷源,則年運(yùn)行費(fèi)用可減少93796.8元,只需要2.5年即可回收資金,進(jìn)一步證明了溶液除濕獨(dú)立新風(fēng)系統(tǒng)在夏熱冬冷地區(qū)有良好的應(yīng)用效果。夏熱冬冷地區(qū)氣候夏季炎熱、冬季寒冷、涉及省市多且人口稠密,由于全球氣候變暖,這一地區(qū)夏季溫度超過30℃的天數(shù)逐漸增多,38℃～39℃也屬常見,而且這一地區(qū)的建筑圍護(hù)結(jié)構(gòu)的保溫隔熱性能差,因此這些地區(qū)空調(diào)的需求量很大,又由于缺乏規(guī)范的管理和科學(xué)的指導(dǎo),導(dǎo)致該地區(qū)空調(diào)能耗急劇增加。本文通過模擬和工程實(shí)例研究,表明溫濕度獨(dú)立控制溶液除濕空調(diào)系統(tǒng)在夏熱冬冷地區(qū)有良好的節(jié)能效果,為切實(shí)改善該地區(qū)室內(nèi)生活環(huán)境、降低空調(diào)能耗,以及進(jìn)一步科學(xué)研究提供資料。
[Abstract]:Energy per capita in China is low. With the improvement of living standards and the deterioration of outdoor environment, people's requirements for indoor living environment are also gradually rising, and the use of air conditioning is becoming more and more popular. Traditional air conditioning system also exposed more and more problems and shortcomings. Therefore, solution dehumidification system based on independent control of temperature and humidity came into being. At present, many scholars have studied the application of the system in the high humidity area, but the research on the system in the dense population, urgent air conditioning demand and energy consumption in hot summer and cold winter area is relatively lacking. Based on the research of temperature and humidity independent control technology and dehumidification technology at home and abroad, this paper summarizes the shortcomings of conventional air conditioning system from the following aspects: 1. The characteristics, energy saving effect and application prospect of solution dehumidification air conditioning system based on temperature and humidity independent control technology are analyzed. On the basis of previous studies, a solution dehumidification system is designed. The physical and mathematical models of the dehumidified packed column are established by using fluent numerical simulation software, and the volume averaging method and porous media model are adopted. Six groups of randomly selected data from reference [55] were simulated, and the results were compared with experimental data. The results showed that the simulation results were basically consistent with the experimental data, and the error rate between the two groups was within 20%. It is verified that the model has a high reliability. (3) the outdoor air parameters in summer and summer in hot summer and cold winter area are analyzed, and the outdoor air parameters of 12 cities in this area are simulated by using the established model. The results show that, The dehumidification efficiency of the solution dehumidification system is about 60%, and in some areas as high as 62%, indicating that the solution dehumidification has a good application prospect in the hot summer and cold winter areas. The economy of temperature and humidity independent control solution desiccant air conditioning system and conventional air conditioning system are compared and analyzed. The results show that the initial investment of the solution dehumidification independent fresh air system is 533900 yuan more than that of the conventional air conditioning system, and the operation energy consumption is also higher than that of the conventional air conditioning system. The total energy consumption of the solution dehumidification independent fresh air system is 57321.6kW less than that of the conventional air conditioning system, and the energy consumption is 16.433.If the natural cold source is used in the treatment of the temperature side, the annual operating cost can be reduced by 93796.8 yuan, and only 2.5 years can be required to recover the funds. It is further proved that the solution dehumidification independent fresh air system has good application effect in hot summer and cold winter area. In hot summer and cold winter, the climate is hot in summer and cold in winter, which involves many provinces and cities and is densely populated. As a result of global warming, the number of days when the summer temperature exceeds 30 鈩，

本文編號(hào)：1915212