干燥剂转轮除湿性能研究

发布时间：2018-05-17 06:15

本文选题：转轮除湿 + 除湿量　；参考：《天津商业大学》2013年硕士论文

【摘要】：本文建立了一级固体干燥剂转轮除湿空调系统，模拟了夏季不同干湿气候条件下固体干燥剂转轮除湿空调系统的除湿过程。通过传热传质分析，建立了除湿转轮的数学模型。以转轮微通道为研究对象，用COMSOL多物理场耦合软件对除湿转轮进行模拟研究，分析了再生风入口温湿度、处理风入口温湿度对系统送风含湿量和送风温度的影响。在特定的干湿气候条件下，对固体干燥剂转轮除湿空调系统进行了正交试验研究。根据实验指标及正交实验原理选定正交表，确定了系统的实验方案，根据设备运行特点和实验需求确定了实验数据的测试方案，包括转轮除湿空调箱的温度和含湿量的测量，以及处理过程和再生过程风量的测定。对系统实验数据进行了深入的分析，研究影响转轮除湿性能的7个因素对处理空气出口温度和含湿量的影响，，并求出评价指标转轮除湿性能系数和除湿量。利用极差分析和方差分析的方法，计算出7个因素对除湿转轮出口状态参数影响的权重，以及7个参数在特定干湿气候区条件下的最优组合。得出试验中影响转轮除湿性能的显著因素和显著性水平，通过与实验结果的比较证明理论模拟的正确性。最后，通过比较得出结论：（1）湿润地区、半湿润和半干旱地区，影响除湿性能系数和除湿量的最显著因素均为再生风量，而干旱地区中影响除湿性能系数和除湿量的最显著性因素均为处理空气入口相对湿度。（2）在各干湿气候区中，随处理风量和再生风入口相对湿度的增加，除湿性能系数和除湿量都减小；随再生风量和处理空气入口温度的增加，除湿性能系数和除湿量均增大；随处理空气入口相对湿度增大，除湿量增大，在半干旱地区的除湿性能系数减小，其余地区表现为增大；再生空气入口温度增大，各地区的除湿性能系数都有下降，而除湿量的变化趋势是斜率几乎为零的线性增加；随着转轮转速的增大，各地区的除湿性能系数变化表现为稍微下降，而湿润和半湿润地区的除湿量基本不变且基本相同，半干旱和干旱地区除湿量明显增加。
[Abstract]:A desiccant rotary desiccant air conditioning system is established in this paper. The desiccant air conditioning system is simulated under different dry and wet weather conditions in summer. The mathematical model of desiccant runner is established by analyzing heat and mass transfer. The desiccant runner was simulated with COMSOL multi-physical coupling software. The influence of inlet temperature and humidity of regenerative air on the moisture content and air temperature of the system was analyzed. The orthogonal experimental study on the desiccant rotary dehumidification air conditioning system was carried out under the specific dry and wet climate conditions. The orthogonal table is selected according to the experimental index and the principle of orthogonal experiment, the experimental scheme of the system is determined, and the test scheme of the experimental data is determined according to the operating characteristics and experimental requirements of the equipment, including the measurement of the temperature and moisture content of the rotary dehumidification air conditioning box. And the determination of air volume in the process of treatment and regeneration. The experimental data of the system are analyzed in depth. The influence of seven factors affecting the dehumidification performance of the runner on the air outlet temperature and moisture content are studied, and the evaluation index, the dehumidification coefficient and the dehumidification quantity of the runner are obtained. By means of range analysis and variance analysis, the weight of seven factors on the outlet parameters of dehumidified runner and the optimal combination of 7 parameters in a given dry and wet climate zone are calculated. The remarkable factors and significance level of the dehumidification performance of the runner are obtained, and the correctness of the theoretical simulation is proved by comparing the experimental results with the experimental results. Finally, the conclusion is drawn by comparison: 1) in humid areas, semi-humid and semi-arid areas, the most significant factors affecting the dehumidification performance coefficient and dehumidification amount are regenerated air volume. The most significant factors affecting the dehumidification performance coefficient and the dehumidification amount in arid areas were the air inlet relative humidity. (2) in each dry-wet climate region, the dehumidification performance coefficient and the dehumidification amount decrease with the increase of the treatment air volume and the inlet relative humidity of the regenerated air, and the dehumidification performance coefficient and the dehumidification amount increase with the increase of the regenerated air volume and the inlet temperature of the treated air. With the increase of air inlet relative humidity, the dehumidification coefficient decreases in semi-arid area and increases in other regions, and the dehumidification coefficient decreases with the increase of inlet temperature of regenerated air. The trend of dehumidification is a linear increase with a slope of almost zero. With the increase of rotary speed, the dehumidification performance coefficient of each region decreases slightly, while the dehumidification rate in humid and sub-humid areas is basically the same. The amount of dehumidification in semiarid and arid areas increased markedly.
【学位授予单位】：天津商业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU834.9

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