水泥基碳纤维地暖电热技术的试验研究

发布时间：2018-03-11 06:14

本文选题：碳纤维带　切入点：室内地暖　出处：《湖南大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着生活水平的不断提高,人们对室内居住环境的要求也在朝着越高的水平发展,由原来解决基本的生活问题,发展为寻求生活环境的舒适性和安逸性。特别是当人们越来越多的生活和工作时间是在室内度过时,人们对于室内环境就有了更高更新的要求。室内取暖是人们在冬天抵御寒冷的主要方式,而国家越来越重视能源问题和新型能源,传统的集中供热取暖面临着新型的挑战,同时新型采暖方式也迎来发展良机。本文提出了一种基于碳纤维带的新型室内地暖电热系统,并详细介绍了电热板的设计思路、试验模型和建造过程,得到了试验结果。试验分为导热升温、模拟温控和装配式样板房碳纤维带电热系统试验三个阶段。在导热升温试验中,通过将碳纤维带预埋在水泥砂浆中构成电热板,检测不同位置温度随时间的变化趋势和系统能耗,以获得电热系统的性能。结果表明:电热系统升温迅速,平均升温速率能达到1.83°C/min。竖直方向的温度变化梯度远大于水平方向温度变化梯度,碳纤维带电阻稳定性较好,地暖反射膜和保温板的隔热效果良好。在模拟温控试验中,该电热系统在温控仪调节下,减少能耗成效显著。由于温控仪的控制调节,系统在不同初始温度下,经过一段预加热时间后,都会自动进入升降温循环阶段,初始温度对升温速率和各阶段时长的影响程度也是一致的。对碳纤维带电热板进行了全尺寸研究,考察了碳纤维带电热系统在整体房间中,长时间升降温循环阶段的工作性能。对碳纤维带布置上进行的优化起到了较为良好的结果,碳纤维带电热系统各层横向温度差异性较小,室外温度相对于初始温度,是更能影响升降温控阶段工作时间及能耗方面的因素。对碳纤维带电热系统与市面上常见的三种采暖形式进行经济性适用性比较,发现结合今后国家大力提倡发展的住宅产业化装配式绿色建筑,碳纤维带电热系统拥有广阔的应用范围和市场前景。
[Abstract]:With the continuous improvement of living standards, people's requirements for indoor living environment are also moving towards a higher level, from the original solution to the basic living problems. To seek comfort and comfort in the living environment, especially as people spend more and more of their life and work time indoors, Indoor heating is the main way for people to resist the cold in winter, but the country is paying more and more attention to energy problems and new energy, traditional centralized heating is facing new challenges. At the same time, a new type of heating system based on carbon fiber strip is presented in this paper, and the design idea, test model and construction process of electric heating plate are introduced in detail. The test results are obtained. The test is divided into three stages: heat conduction heating, simulated temperature control and electric heating system test of carbon fiber strip in fabricated sample house. In the heat conduction heating test, the electric heating plate is formed by burying the carbon fiber tape in cement mortar. In order to obtain the performance of the electrothermal system, the change trend of temperature at different locations and the energy consumption of the system are measured. The results show that the temperature rise of the electrothermal system is rapid. The average heating rate can reach 1.83 掳C / min. The vertical temperature gradient is much larger than the horizontal temperature gradient, the resistance stability of carbon fiber is better, and the thermal insulation effect of ground temperature reflective film and thermal insulation board is good. Under the adjustment of the temperature controller, the electric heating system can reduce the energy consumption significantly. Because of the control and adjustment of the temperature control instrument, the system will automatically enter the rising and cooling cycle stage after a period of pre-heating time at different initial temperature. The effect of initial temperature on the heating rate and the duration of each stage is also consistent. The full-scale study of the carbon fiber strip electric heating plate is carried out, and the electric heating system of the carbon fiber strip in the whole room is investigated. The optimization of carbon fiber strip arrangement has a good result. The lateral temperature difference of each layer of carbon fiber strip electric heating system is small, and the outdoor temperature is relative to the initial temperature. It is a more effective factor to influence the working time and energy consumption in the temperature control phase. The economic applicability of the electric heating system with carbon fiber is compared with that of the three common heating forms in the market. It is found that the carbon fiber strip electric heating system has a broad application range and market prospect in combination with the green residential industrial assembly building which will be strongly advocated by the country in the future.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU832

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