| 摘要: |
| 介绍了现行规范中夏季室外计算参数和设计日的确定方法，并在我国现行规范方法的基础上，根据蒸发冷却技术适应区，选取4个典型城市，形成了以湿球温度为主、干球温度为辅的蒸发冷却空调室外计算参数。提出一种新的设计日确定方法，以台站历史长期观测数据为基准，提取典型城市夏季室外气候日变化特征和趋势，利用逐时系数法获得夏季设计日的数据。结果表明：新方法得到的室外计算干湿球温差降低，蒸发冷却潜力下降，按照现行规范中的方法指导设计会造成设计不足；现行规范中的设计日不能准确反映各地区夏季室外气候的变化趋势，研究提出的逐时系数法得到的设计日数据更符合典型城市的实测数据。 |
| 关键词: 蒸发冷却 室外计算参数 设计日 逐时系数法 |
| DOI：10.3969/j.issn.0253-4339.2024.03.104 |
| 投稿时间：2023-04-26 修订日期：2023-07-05
录用日期：2023-08-03 |
| 基金项目:国家自然科学基金（51838011）资助项目。 |
|
| Generating Method of Outdoor Design Parameter for Evaporative Cooling Air Conditioning |
|
Yang Yi1, Huang Xiang2, Chu Junjie2, Li Honglian3, Yang Liu1
|
| (1.School of Architecture, Xi'an University of Architecture and Technology;2.School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University;3.School of Information and Control Engineering, Xi'an University of Architecture and Technology) |
| Abstract: |
| This study proposes a method for determining summer outdoor design parameters and design days using the current code. Based on the method from the current code in China, four typical cities are selected according to the adaptation zone of evaporative cooling technology, forming outdoor design parameters for evaporative cooling air conditioning with wet bulb temperature as the primary factor and dry bulb temperature as the secondary factor. Based on the historical long-term meteorological data, a new method for determining the design days is proposed. The characteristics and trends of outdoor climate change in typical cities in summer are extracted, and the data of the summer design days are obtained using the hourly coefficient method. The results show that the new method reduces the temperature difference between dry and wet bulbs and the evaporative cooling potential. Guiding the design according to the method in the current code results in an insufficient design. The design days in the current code cannot accurately reflect the variation trend of the outdoor climate in summer in different regions. However, the design days obtained by the hourly coefficient method proposed in this study are more consistent with the measured data of typical cities. |
| Key words: evaporative cooling outdoor design parameters design day hourly coefficient method |
