本文選題：微波加熱 + COMSOL��； 參考：《哈爾濱工業(yè)大學(xué)》2014年碩士論文

【摘要】：隨著人們生活質(zhì)量的改善及工業(yè)發(fā)展的進(jìn)步，除濕技術(shù)顯得愈發(fā)重要，但是傳統(tǒng)的除濕方法耗能嚴(yán)重。不同的研究報(bào)道，工業(yè)干燥所消耗的能源資源占美國(guó)、法國(guó)、加拿大及英國(guó)總能耗的10%~15%，占丹麥及德國(guó)能源總量的20%~25%。為了在除濕的同時(shí)節(jié)約能源資源，就很有必要對(duì)除濕技術(shù)進(jìn)行研究。 在本文中，提出了微波加熱除濕的基本原理，結(jié)合微波加熱的特點(diǎn)，分析了微波加熱和傳統(tǒng)加熱的不同。利用集中參數(shù)法分析了微波加熱除濕及電加熱除濕裝置內(nèi)濕空氣（再生空氣）及干燥劑的傳熱傳質(zhì)過(guò)程，其建立一維的數(shù)學(xué)模型。 以COMSOL Multiphysics軟件為模擬工具，在一定條件下，對(duì)微波加熱除濕裝置及電加熱除濕裝置內(nèi)再生過(guò)程進(jìn)行了模擬分析，得到了120s內(nèi)任一時(shí)刻微元通道中各點(diǎn)空氣溫度、含濕量，干燥劑溫度、吸附率等的變化曲線；通過(guò)改變微波功率，得到了一定范圍內(nèi)微波加熱功率和干燥劑吸附率平均值的關(guān)系曲線；比較了120s時(shí)刻干燥劑吸附率平均值相等時(shí)兩裝置的耗電量，得到了微波加熱除濕裝置相對(duì)電加熱除濕裝置的節(jié)能率。 通過(guò)改變裝置入口再生空氣的相對(duì)濕度，得到了兩裝置內(nèi)吸附劑除濕率與入口再生空氣相對(duì)濕度的關(guān)系曲線，得出了微波加熱除濕裝置相對(duì)電加熱除濕裝置優(yōu)勢(shì)最大時(shí)的入口再生空氣相對(duì)濕度。 通過(guò)改變干燥劑的厚度，經(jīng)模擬分析，得出了再生過(guò)程中干燥劑內(nèi)水分減少量、吸附率與干燥劑厚度的關(guān)系曲線，指出了干燥劑厚度的取值范圍。 通過(guò)對(duì)微波加熱除濕裝置前后均加設(shè)波導(dǎo)管使原除濕裝置得到改進(jìn)，經(jīng)模擬分析，得到了改進(jìn)后裝置相對(duì)改進(jìn)前裝置的優(yōu)缺點(diǎn)。 分析了微波加熱除濕裝置在蒸發(fā)冷卻空調(diào)中應(yīng)用的可能，，并提出了除濕單元的合理除濕持續(xù)時(shí)間。 通過(guò)本課題的模擬分析，可以為開(kāi)發(fā)應(yīng)用微波加熱除濕裝置提供參考意見(jiàn)與借鑒。
[Abstract]:With the improvement of people's quality of life and the development of industry, dehumidification technology becomes more and more important, but the traditional dehumidification method consumes energy seriously.According to different studies, industrial drying consumes 10 and 15 percent of the total energy consumption in the United States, France, Canada and the United Kingdom, and 20, 25 percent of the total energy consumption in Denmark and Germany.In order to save energy resources while dehumidifying, it is necessary to study dehumidification technology.In this paper, the basic principle of microwave heating dehumidification is put forward, and the difference between microwave heating and traditional heating is analyzed according to the characteristics of microwave heating.The heat and mass transfer processes of wet air (regenerated air) and desiccant in microwave heating dehumidifier and electric heating dehumidifier were analyzed by means of lumped parameter method. The one-dimensional mathematical model was established.Under certain conditions, the regeneration process of microwave heating dehumidifier and electric heating dehumidifier was simulated and analyzed with COMSOL Multiphysics software as simulation tool. The air temperature and moisture content of each point in the micro-element channel at any time in 120s were obtained.By changing microwave power, the relationship curve between microwave heating power and average adsorption rate of desiccant was obtained.The energy consumption of the two desiccant units was compared when the average adsorption rate of the desiccant was equal at 120s, and the energy saving rate of the microwave heating dehumidifier relative to the electric heating dehumidifier was obtained.By changing the relative humidity of the regenerated air at the inlet of the device, the curve of the relationship between the desiccant desiccant rate and the relative humidity of the inlet regenerated air is obtained.The relative humidity of inlet regenerated air is obtained when microwave heating dehumidifier has the greatest advantage over electric heating dehumidifier.By changing the thickness of the desiccant, the curves of the decrease of moisture content in the desiccant, the adsorption rate and the thickness of the desiccant are obtained by simulation and analysis, and the range of the thickness of the desiccant is pointed out.The original dehumidification device was improved by adding waveguide tube before and after microwave heating and dehumidifying device. The advantages and disadvantages of the improved device were obtained by simulation and analysis.The possibility of application of microwave heating dehumidifier in evaporative cooling air conditioning is analyzed, and the reasonable dehumidification duration of dehumidification unit is put forward.Through the simulation and analysis of this subject, it can provide reference for the development and application of microwave heating dehumidification device.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM924.76;TB657.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 丁云飛;丁靜;方玉堂;楊建平;楊曉西;;新型吸附材料除濕輪傳遞過(guò)程及性能優(yōu)化[J];化學(xué)工程;2007年05期

2 張龍龍;張琪;湯衛(wèi)華;;膜法低壓空氣除濕工藝研究[J];艦船科學(xué)技術(shù);2010年12期

3 張學(xué)軍,代彥軍,王如竹;蜂窩式除濕轉(zhuǎn)輪的傳熱傳質(zhì)數(shù)學(xué)模型及其試驗(yàn)驗(yàn)證[J];機(jī)械工程學(xué)報(bào);2005年01期

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