建筑环境测试技术论文

《建筑环境测试》课程论文固体除湿空调系统的研究状况

学院土木与交通工程学院

专业建筑环境与能源应用工程

年级班别 2013级（1）班

学号 **********

学生姓名梁朝杰

指导教师杨晚生

2015年12月

摘要

建筑能耗占国家总能量消耗的比例高达25%-28%，而供热、通风及空调系统消耗能量约占50%，总建筑物能耗的而其碳排放比例约为38%-40%。因此，降低空调系统化石燃料的消耗、增加可再生能源（如太阳能）的应用对建筑物节能降耗有重要的意义。使用传统蒸气压缩式制冷来实现降温和除湿，必须将空气冷却到其露点温度以下，这必然会消耗大量的高品位能源。本文设计了一种利用太阳能直接再生的固体除湿床，并对其除湿及再生性能进行了实验研究，目的在于为其工程应用提供基本实验依据。传统利用太阳能进行再生的除湿床，都是利用集热系统进行集热后再将能量转换成除湿材料再生所需的能量，存在能量的二次转换，整个系统效率相对较低。本文所研制的固体除湿床直接利丨太阳辐射再生，有效地利用了太阳能，可达到节能的效果。除湿系统采用传统、廉价、防腐蚀的细孔硅胶，作为除湿吸附剂，选用适宜相变温度的相变材料作为降温材料，将除湿时水蒸气释放的汽化潜热量转化为相变材料相变储存能，以减少系统除湿后的温升效应，降低空调的制冷量。

关键词 :除湿 ; 固体吸附 ; 转轮除湿器 ; 空调系统

Abstract :

Countries building energy consumption accounts for the proportion of the total energy consumption up to 25-28%. Heating, ventilation and air conditioning system energy consumption accounts for 50% of the total building energy consumption, and carbon emission accounts for the proportion of the total emission up to 38-40%.Therefore, decrease fossil fuel consumption of air-conditioning system and application of renewable energy sources (such as solar energy) is important for building energy saving. Using traditional vapor compression refrigeration for cooling and dehumidification, air must be cooled below the dew point temperature, which will consume large amounts of high grade energy. This paper designs a new kind of solid desiccant bed which use solar energy directly as a renewable energy, and explores the dehumidification and regeneration performance research to provide experiment basis for the engineering application. Through literature study, the reason why the whole system is not high is that traditional desiccant bed which use solar heating system to convert energy into regeneration desiccant materials have secondary conversion of energy and relatively low efficiency. In this paper, direct use of solar radiation is an effective way of using the low grade energy to achieve the effect of energy saving. Dehumidification system using conventional, cheap, corrosion pores of the silica gel as adsorbent dehumidification, and choosing appropriate melting point of phase change materials as a cooling material, will release the latent heat of vaporization of water vapor desiccant into phase change storage energy, in order to reduce the rise of temperature of the system after dehumidification effect and air conditioning refrigerating capacity.

目录

摘要 (1)

1绪论 (5)

1.1 题目背景及目的 (5)

1.2 国内外研究状况 (5)

1.2.1固体除湿材料 (5)

1.2.2固体除湿装置 (9)

1.3 论文构成及研究内容 (9)

2 固体除湿床 (9)

2.1 除湿床的工作原理 (9)

2.2 除湿床的构造 (10)

2.3 除湿床的性能及其应用 (12)

3 固体除湿空调系统 (12)

3.1 固体除湿空调系统的构造 (12)

3.2 固体除湿空调系统性能及工程应用 (12)

4 固体除湿材料再生方式及对比 (13)

4.1 固体除湿材料的再生方式 (13)

4.2 固体除湿材料再生方式的对比 (13)

结论 (14)

参考文献 (14)

致谢 (17)