基于减少昼光眩光影响的遮阳优化设计--以海南地区酒店客房采光口为例

Optimal Design of Sunshade Based on Reducing the Influence of Daylight Glare:A Case Study of Hotels Day Lighting Outlets in Hainan

在海南地区既有建筑改造中,普遍采用的单一遮阳方式忽略了眩光的影响,降低了室内的采光质量。受太阳高度角、方位角变化的影响。建筑各个朝向因阳光直射发生眩光的时间、水平不同。以海南地区酒店建筑为例,调研了部分具有传统遮阳形式的客房,找出目前存在的问题,并采用Grasshopper平台下的Ladybug与Honeybee软件对典型模块进行模拟分析,比较不同遮阳在不同季节、朝向、时间,在天然采光条件下的不舒适眩光指数与照度水平,解决传统遮阳因太阳直射光引起的眩光问题及遮阳占空比对视野范围与采光性能的影响。

This paper focuses on the reconstruction of existing buildings in Hainan, the commonly used of sunshade ignores the influence of glare,which reduces the indoor lighting quality. Due to the influence of the change of the sun height angle and azimuth angle, the time and level of glare in each direction of the building are different due to the direct sunlight. For the use function of the guest room, the light environment should not only meet the requirements of visual comfort, but also meet the requirements of certain viewing field. Taking the hotel building in Hainan as an example, this paper investigates some rooms with traditional sunshade forms, finds out the existing problems, and uses Ladybug and honeybee software under the platform of Grasshopper to simulate and analyze the typical modules, compares the uncomfortable glare index and illuminance level of different sunshades in different seasons, orientations, times and under the daylighting conditions, so as to solve the problems The glare caused by the direct sunlight in the traditional sun shading direction and the influence of the duty ratio of the sun shading on the field of vision and the lighting performance.