严寒地区村镇建筑间歇式太阳能热风自采暖应用研究

发布时间：2018-05-06 11:11

本文选题：间歇式太阳能热风自采暖 + 严寒地区　；参考：《哈尔滨工业大学》2014年硕士论文

【摘要】：严寒地区村镇烧炕建筑存在火炕排烟不畅、冬季室内温度偏低、室内空气污染严重等问题，本文提出了严寒地区间歇式太阳能热风自采暖系统，该系统是基于太阳能和浅层土壤能在严寒地区村镇建筑的应用形式，充分利用太阳能技术提高火炕建筑室内温度，同时使用地道风技术初步预热或预冷室外新风，达到节能和改善室内空气质量的目的。针对严寒地区村镇烧炕建筑，提出了一种太阳能热风自采暖系统，充分利用太阳能的热压作用，实现自然循环，提高室内热舒适性，同时该系统还综合利用了地道风技术、火炕余热回收技术和冷剂自然循环技术等；并利用CFD技术和相应的软件，通过建立三维计算模型、划分网格，，对系统进行模拟计算。利用数值模拟技术，对太阳能热风间歇自采暖的主要影响因素进行模拟，包括太阳辐射强度、集热面积、热通道厚度、进出风口尺寸、吸热涂层特性、外层盖板等对冬夏季室内温度的影响；对上述参数进行优化的基础上，对太阳能热风间歇自采暖系统进行了逐时模拟分析，并提出了针对严寒地区的冬季最佳系统开启和关闭时间。对地道风技术在严寒地区的利用进行了分析，并通过模拟技术研究了地道埋管长度、地道埋管深度、地道埋管管径、地道进风速度、地道埋管管材等对地道风技术的影响。本文对太阳能热风间歇自采暖系统进行了详细分析，分别研究了间歇式太阳能热风自采暖系统和地道风技术在冬夏季的运行分析，为太阳能和地道风技术在严寒地区的应用提供了很好的参考。
[Abstract]:In severe cold area, there are some problems in the building of burning Kang in cold area, such as poor smoke discharge, low indoor temperature in winter, serious indoor air pollution, etc. In this paper, an intermittent solar energy heating system with hot air is put forward in this paper. The system is based on solar energy and shallow soil can be used in the cold areas of towns and villages, fully using solar energy technology to improve the indoor temperature of the Kang building, while using the ground-wind technology preliminary preheating or pre-cooling outdoor fresh air, To achieve the purpose of energy saving and improving indoor air quality. In view of burning Kang buildings in villages and towns in severe cold area, a kind of solar heating system with hot wind is put forward, which can make full use of the hot pressing function of solar energy, realize natural circulation and improve indoor thermal comfort. At the same time, the system also makes comprehensive use of the technology of ground wind. The waste heat recovery technology and the natural circulation technology of coolant are used, and the system is simulated by using CFD technology and corresponding software, by establishing three-dimensional calculation model, dividing the grid and calculating the system. Using numerical simulation technology, the main influencing factors of intermittent self-heating of solar hot wind are simulated, including solar radiation intensity, heat collecting area, heat channel thickness, inlet and outlet size, characteristics of endothermic coating, etc. On the basis of optimizing the above parameters, the intermittent self-heating system of solar hot wind is simulated time by time, and the influence of outer cover plate on indoor temperature in winter and summer is analyzed. The optimal system opening and closing time for severe winter area is put forward. The application of ground wind technology in severe cold area is analyzed, and the influence of tunnel pipe length, pipe depth, pipe diameter, inlet wind velocity and pipe material on tunnel wind technology are studied by simulation technology. In this paper, the intermittent self-heating system of solar hot wind is analyzed in detail, and the operation analysis of intermittent solar heating system and ground-wind technology in winter and summer are studied respectively. It provides a good reference for the application of solar energy and ground wind technology in cold areas.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU832.17

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