【摘要】：能源問題已受到全世界的廣泛關(guān)注,建筑節(jié)能是重要一環(huán),空調(diào)系統(tǒng)節(jié)能是其中最直接有效的方式。與傳統(tǒng)蒸汽壓縮式空調(diào)相比,吸收式空調(diào)系統(tǒng)中的溶液除濕空調(diào)系統(tǒng)以其溫濕度獨立控制及節(jié)能環(huán)保的優(yōu)點引起了廣泛關(guān)注。然而,由于環(huán)境依賴性和不連續(xù)性的缺點,傳統(tǒng)的熱再生方式難以滿足穩(wěn)定性的需求。對此,本文提出了基于電容去離子再生的溶液除濕空調(diào)系統(tǒng),以光伏發(fā)電驅(qū)動,通過電極再生溶液吸收劑,并進行了理論與實驗研究。在理論研究部分,建立了基于電容去離子再生的溶液除濕空調(diào)系統(tǒng),構(gòu)建了系統(tǒng)的循環(huán)流程并研究了再生系統(tǒng)的循環(huán)特性,并建立了系統(tǒng)的熱力學(xué)模型。對離子的傳導(dǎo)過程進行了模擬,得到了溶液在停滯擴散層和電極區(qū)域的濃度場和電勢場.,通過電容去離子溶液出口濃度的動態(tài)模型研究了去離子過程各影響因素。對系統(tǒng)的性能進行了研究,分析了能量回收率、溶液入口濃度和電壓對系統(tǒng)COP的影響;對比了新系統(tǒng)與太陽能光熱再生系統(tǒng)的耗能情況。在實驗研究部分,搭建了電容去離子再生器實驗裝置,研究了不同溶液濃度下再生器再生效果及其對應(yīng)的耗電情況,對比了兩種流量下不同溶液濃度再生器的再生效果。研究結(jié)果表明,新系統(tǒng)可以克服熱再生過程的不穩(wěn)定性,提高可再生能源的利用率,若不考慮光熱光電轉(zhuǎn)換率,其耗能比傳統(tǒng)系統(tǒng)可減少一半以上,具有較好的應(yīng)用潛力。實際電荷效率在低濃度范圍內(nèi)較高,通過采用膜電容去離子方法,能夠克服溶液在高濃度范圍內(nèi)的低效率問題,進一步提高再生效果,使系統(tǒng)具有更好性能。
[Abstract]:Energy problem has been paid more and more attention all over the world. Building energy saving is an important part, and air conditioning system energy saving is the most direct and effective way. Compared with the traditional steam compression air conditioning system, the solution desiccant air conditioning system in the absorption air conditioning system has attracted wide attention due to its advantages of independent control of temperature and humidity and energy saving and environmental protection. However, due to the shortcomings of environmental dependence and discontinuity, the traditional thermal regeneration method is difficult to meet the need of stability. In this paper, a solution desiccant air conditioning system based on capacitive deionization is proposed, which is driven by photovoltaic power generation and regenerates the solution absorbent by electrode, and the theoretical and experimental research is carried out. In the theoretical research part, a solution desiccant air conditioning system based on capacitive deionization is established, the cycle flow of the system is constructed, the cycle characteristics of the regeneration system are studied, and the thermodynamic model of the system is established. The ionic conduction process was simulated and the concentration field and potential field of the solution in the stagnant diffusion layer and electrode region were obtained. The influence factors of the deionization process were studied by using the dynamic model of the outlet concentration of the capacitive deionized solution. The effects of energy recovery, solution inlet concentration and voltage on the COP of the system were studied, and the energy consumption of the new system and the solar photothermal regeneration system were compared. In the part of experimental research, the experimental equipment of capacitive deionizer is built, the regeneration effect and the corresponding electricity consumption of regenerator under different solution concentration are studied, and the regeneration effect of regenerator with different solution concentration under two kinds of flow rate is compared. The results show that the new system can overcome the instability of the thermal regeneration process and improve the utilization of renewable energy. If the photothermal photoelectric conversion rate is not taken into account, the energy consumption of the new system can be reduced by more than half compared with the traditional system, which has a better application potential. The actual charge efficiency is higher in the low concentration range. By using the method of membrane capacitance deionization, the low efficiency problem of the solution in the high concentration range can be overcome, the regeneration effect can be further improved, and the system will have better performance.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TB657.2

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