本文關(guān)鍵詞：溶液除濕空調(diào)系統(tǒng)的性能分析與實(shí)驗(yàn)研究　出處：《南京航空航天大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 溫濕度獨(dú)立控制系統(tǒng) 溶液除濕 傳熱傳質(zhì) 實(shí)驗(yàn)研究 火用分析

【摘要】：當(dāng)前在全球能源危機(jī)的大背景下,建筑節(jié)能尤其暖通空調(diào)領(lǐng)域的節(jié)能越來(lái)越不可忽略。憑借出色的節(jié)能效果和空氣處理能力,溫濕度獨(dú)立控制系統(tǒng)(THICS)作為一個(gè)新的理念被提出后受到了很廣泛的關(guān)注,而其中的溶液除濕系統(tǒng)節(jié)能效果最為顯著,濕度控制能力也最好。在總結(jié)了前人提出的溶液除濕空調(diào)系統(tǒng),綜合考慮可行性,簡(jiǎn)易性和投入產(chǎn)出比后本文提出了一種預(yù)冷式全新風(fēng)溶液除濕空調(diào)系統(tǒng)。在夏季工況下,外界的高溫高濕空氣先由高溫冷卻水預(yù)冷后送入除濕器,經(jīng)除濕降溫后送入空調(diào)室。除濕溶液溫度由蒸氣壓縮制冷系統(tǒng)調(diào)控,溶液再生的熱量由冷凝廢熱提供,充分利用溶液的除濕能力和蒸氣壓縮制冷的可靠性,穩(wěn)定性。論文的主要工作有:首先對(duì)除濕器/再生器建立物理模型,對(duì)出口參數(shù)進(jìn)行了數(shù)值求解,得到了沿程空氣和溶液狀態(tài)參數(shù)的分布規(guī)律,運(yùn)用MATLAB軟件編程計(jì)算得到傳熱效率和傳質(zhì)效率隨進(jìn)口參數(shù)的變化關(guān)系。其次搭建了溶液除濕空調(diào)實(shí)驗(yàn)平臺(tái),對(duì)機(jī)組進(jìn)行了實(shí)驗(yàn)研究,得到了進(jìn)口參數(shù)對(duì)處理空氣和再生空氣出口參數(shù)的影響,實(shí)驗(yàn)數(shù)據(jù)和軟件計(jì)算結(jié)果的誤差在10%以內(nèi)。對(duì)于整個(gè)機(jī)組,空氣參數(shù)對(duì)其性能影響比溶液參數(shù)的影響更大,處理空氣質(zhì)量流量、溫度、含濕量增大時(shí),機(jī)組的三個(gè)性能系數(shù)均提高。最后,基于熱力學(xué)第二定律對(duì)系統(tǒng)進(jìn)行了火用分析,得到各部件的火用損,找到系統(tǒng)不可逆損失最大的部件—冷凝器和蒸發(fā)器,并提出了改進(jìn)措施。
[Abstract]:Under the background of the global energy crisis, building energy saving, especially in the field of HVAC, is becoming more and more important. As a new idea, the independent temperature and humidity control system (THICS) has been widely concerned, among which the solution dehumidification system has the most remarkable energy saving effect. The humidity control ability is also the best. After summing up the solution dehumidification air conditioning system, the feasibility is considered synthetically. After the simplicity and input-output ratio, a new pre-cooling air desiccant air conditioning system is proposed in this paper. In summer, the high temperature and high humidity air from outside is precooled by high temperature cooling water and then fed into the dehumidifier. The temperature of dehumidified solution is controlled by vapor compression refrigeration system, and the regenerated heat of solution is supplied by condensing waste heat. The dehumidification capacity of the solution and the reliability of steam compression refrigeration are fully utilized. The main work of this paper is as follows: firstly, the physical model of dehumidifier / regenerator is established, the outlet parameters are numerically solved, and the distribution of air and solution state parameters along the range is obtained. The relationship between heat transfer efficiency and mass transfer efficiency with inlet parameters was calculated by using MATLAB software. Secondly, the experimental platform of solution dehumidification air conditioning was built, and the experimental research on the unit was carried out. The effect of the inlet parameters on the outlet parameters of the treated and regenerated air is obtained. The error between the experimental data and the calculation results of the software is less than 10% for the whole unit. The effect of air parameters on its performance is greater than that of solution parameters. When the air mass flow, temperature and moisture content increase, the three performance coefficients of the unit are all increased. Based on the second law of thermodynamics, the exergy analysis of the system is carried out, and the exergy loss of each component is obtained. The condenser and evaporator, which have the greatest irreversible loss, are found, and the improvement measures are put forward.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU834.9

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