湿热地区高校图书馆夏季室内热环境实测与分析

Summer measurement and analysis of the indoor thermal environment of a university library in a hot-humid city

图书馆的空调区节能设计与非空调区舒适性设计影响了其经济成本和使用效益。为了掌握图书馆在夏季未使用空调状态下的空调区与非空调区的热环境分布状况,以地处湿热地区的广西大学图书馆为研究对象,采用移动测试法实地测试了其不同功能空间的空气温度、湿度、风速等热环境参数。实测结果表明:在夏季闷热少风的湿热地区,该图书馆在未使用空调状态下,绝大多数的空调区与非空调区靠自身围护构造与空间设计是无法达到舒适状态。其中,空调区室内热环境差主要是受窗口无遮阳、气流速度小等因素影响,非空调区中缺少遮阳、闷热少风是其不舒适的主要原因。最后,针对各空间热环境问题提出相应改善建议。

Both energy-efficient designs of air-conditioned zones and bio-climatic design of non-air-conditioned zones affect economic cost and use benefit in the library.To understand the thermal environment in the air-conditioned and non-air-conditioned zones of a university library during non-air-conditioning period,summer measurements were conducted in the Guangxi University Library.The measured library is located in a hot-humid city,Nanning.Environmental parameters(air temperature,air humidity,air velocity and surface temperature distribution)were measured in different functional spaces.Measurement results show that most of the air-conditioned and non-air-conditioned zones were thermally uncomfortable due to the lacks of sun-shading and natural ventilation.The poor thermal environment in the air-conditioned zones mainly resulted from unshaded windows,weak indoor air velocity,etc.The lack of shading in the non-air-conditioned area,hot-humid indoor air,and weak airflow are the main factors causing indoor discomfort.Finally,thermal improvement suggestions were proposed referred to previous research results.