A Comparative Study of Design Strategies for Lobby of Outpatient Department of Hospital Buildings in Cold Climate Region in China
A Comparative Study of Design Strategies for Lobby of Outpatient Department of Hospital Buildings in Cold Climate Region in China
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DOI：
10.1016/j.proeng.2017.04.206
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Yizhao Sun;Qiong Huang
中科院分区：
文献类型：
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作者：
Yizhao Sun;Qiong Huang
本文旨在阐明医院建筑门诊部大堂设计与能耗、光环境之间的关系，探索医院门诊部大堂设计的有效策略，在降低能耗的同时改善医疗环境。首先，对天津市现有医院的热环境和光环境进行了调查。根据调查数据，得出空间设计和立面设计都是影响物理环境的主要因素的结论。然后对这些因素对能耗和物理环境的影响进行了模拟研究。在第一个关于大堂空间设计的研究中，建立了四个不同大堂位置的基本对比模型，对能耗和采光环境进行比较；然后，为了进一步分析，对空间朝向和高度进行了研究。第一项研究的模拟结果表明：(1)就位置而言，第一种情况下的能耗水平最低，室内采光环境最满意；(2)在朝向方面，w向情况下的能耗水平最高，而S方向的情况下最低；(3)在高度方面，大堂高度的增加带来了较大的能耗增加，但对改善采光环境没有明显的帮助。第二个研究是关于大堂的立面设计，分析了窗墙比和天窗比。研究二的模拟结果表明：(1)窗墙比的提高对能耗水平的提高影响不大，但对室内光环境的发展影响显著；(2)在天光比方面，窗墙比的提高导致能耗水平和日光利用率都有较大幅度的提高，在极端情况下可能会导致过度消耗和日光利用率的提高。
This paper aims to clarify the relationship among lobby-design, energy consumption and daylight environment of outpatient department in hospital buildings, and further goal is to explore effective design strategies for outpatient lobby in hospitals for better healthcare environment while lower energy consumption.Firstly, investigation that focused on thermal and daylighting environment on current hospitals was carried out in Tianjin. Based on the investigational data, it is concluded that space-design and façade-design are both the main factors that impact physical environment. Then simulation was conducted to study how these factors affect energy consumption and physical environment. In the first study that concerns the space-design of lobby, four basic comparative models with different positions of lobby were built up to compare energy consumption and daylighting environment; then for further analysis, space orientation and height were studied. The results of simulations in the first study indicates that: (1) Concerning the position, Form I case has the lowest energy consumption level and the most satisfactory interior daylight environment; (2) Concerning the orientation, w-orientated case has the highest energy consumption level while s-orientated case has the lowest level; (3) Concerning the height, it shows that increase of lobby's height brings great increase in energy consumption while no obvious help in improving daylighting environment. In the second study that concerns façade-design of lobby, both window-wall ratio and skylight ratio were analyzed. The results of simulations in the second study show that: (1) Concerning window-wall ratio, the raise of the ratio has insignificant impact on increasing energy consumption level but noticeable impact on developing the interior daylight environment; (2) Concerning skylight ratio, the raise of the ratio causes great increase in both energy consumption level and daylight availability, which might lead to excessive consumption and daylight availability under extreme condition.