發(fā)布時間：2018-05-09 00:05

  本文選題：熱泵驅(qū)動 + 溶液除濕��； 參考：《江蘇科技大學》2013年碩士論文

【摘要】：日漸普及的常規(guī)制冷空調(diào)系統(tǒng)和設(shè)備在為人們提供良好舒適的室內(nèi)人居環(huán)境的同時，卻帶來了新的社會問題：空調(diào)能耗巨大，能源浪費嚴重、對電力系統(tǒng)沖擊大，電網(wǎng)安全運行受到威脅、對室內(nèi)空氣品質(zhì)有負面影響，，舒適性下降等。熱泵驅(qū)動溶液除濕空調(diào)系統(tǒng)就是在這一背景下提出來的，它不僅運行穩(wěn)定、高效節(jié)能省電，而且有助于提升室內(nèi)空氣品質(zhì)，為人們提供一個更加舒適、健康的生活和工作環(huán)境，是未來理想空調(diào)的一個新的發(fā)展方向。 本文從除濕劑的選擇標準出發(fā)，結(jié)合熱泵驅(qū)動溶液除濕空調(diào)系統(tǒng)的自身特點，通過綜合分析，得出了LiCl溶液更適合做該系統(tǒng)的除濕劑的結(jié)論，并對LiCl溶液的物性進行了探討。 本文對該系統(tǒng)的結(jié)構(gòu)、工作流程、特點加以介紹，并分析了發(fā)生在除濕器和再生器中的空氣和溶液之間的傳熱傳質(zhì)機理、溶液除濕/再生過程特性，指出空氣中水蒸氣分壓力與邊界層中水蒸氣分壓力之差是質(zhì)交換的驅(qū)動力。另外，還探討了絕熱型叉流除濕器/再生器工作過程數(shù)學模型和數(shù)值求解方法、過程。 本文采用該系統(tǒng)對我校某實驗辦公室進行了實驗系統(tǒng)理論設(shè)計。為了及時、有效地排除系統(tǒng)中多余的冷凝熱，采用了在制冷系統(tǒng)管路上串聯(lián)一個風冷冷凝器的方法來改進系統(tǒng)，其理論能效比EER可達3.69，比常規(guī)風冷機組制冷系統(tǒng)省電12.5%。 最后，本文采用改變單一變量的實驗方法，對改進后的系統(tǒng)整體性能進行了實驗研究，主要研究了風量、新風溫度、新風含濕量、冷凝溫度、再生溶液流量、除濕溶液流量對系統(tǒng)除濕量、再生量、供冷量及機組能耗的影響，為熱泵驅(qū)動溶液除濕空調(diào)系統(tǒng)的性能優(yōu)化提供了一定的數(shù)據(jù)參考。
[Abstract]:With the increasing popularity of conventional refrigeration and air conditioning systems and equipment, while providing people with a good and comfortable indoor living environment, it has brought about new social problems: air conditioning energy consumption is huge, energy waste is serious, and the impact on the power system is great. The safe operation of power grid is threatened, which has negative influence on indoor air quality and decreases comfort. Heat pump driven solution dehumidification air conditioning system is put forward under this background. It not only runs stably, but also helps to improve indoor air quality and provide people with a more comfortable and healthy living and working environment. Is the future ideal air conditioning a new development direction. Based on the selection standard of dehumidifier and the characteristics of heat pump driven solution dehumidifying air conditioning system, this paper draws the conclusion that LiCl solution is more suitable for dehumidifying agent of this system, and discusses the physical properties of LiCl solution. In this paper, the structure, working flow and characteristics of the system are introduced, and the mechanism of heat and mass transfer between air and solution in the dehumidifier and regenerator, the characteristics of the solution dehumidification / regeneration process are analyzed. It is pointed out that the difference between the partial pressure of water vapor in air and the partial pressure of water vapor in boundary layer is the driving force of mass exchange. In addition, the mathematical model of adiabatic cross flow dehumidifier / regenerator working process and the numerical solution method are also discussed. In this paper, the experimental system is designed for a laboratory office in our university. In order to eliminate the superfluous condensation heat in time and effectively, a series of air-cooled condenser was adopted to improve the system. The theoretical energy efficiency ratio (EER) of the condenser was 3.69, and the power saving was 12.5% compared with the conventional air-cooled unit refrigeration system. Finally, an experimental study on the whole performance of the improved system is carried out by using the method of changing the single variable. The air volume, the temperature of the fresh air, the moisture content of the fresh air, the condensation temperature and the flow rate of the regenerated solution are studied. The effect of dehumidification solution flow rate on the dehumidification, regeneration, cooling capacity and energy consumption of the unit provides a certain data reference for the performance optimization of the heat pump driven solution desiccant air conditioning system.
【學位授予單位】：江蘇科技大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU831.3

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