不舒适热单元影响公共空间整体热舒适的时间累积效应  

Time Accumulative Effect of Uncomfortable Thermal Units on the Overall Thermal Comfort of Public Spaces

作　　者：石瑶 王一 黄子硕 SHI Yao;WANG Yi;HUANG Zishuo(College of Architecture and Urban Planning,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学建筑与城市规划学院,上海200092

出　　处：《建筑节能（中英文）》2024年第5期147-154,共8页Building Energy Efficiency

基　　金：国家自然科学基金资助项目“街区式商业综合体公共空间热环境和使用者行为耦合度评价方法和模式研究”(52078338)。

摘　　要：对于由多个空间单元组成的室内外空间,由于使用者不同行为选择(路径、停留时长等)的影响,会产生不同的热经历,并导致具有差异性的整体热舒适体验。其中某些特殊的热单元(停留时间特别长、特别不舒适等)足以对整体热舒适产生全局性的影响,需要予以专门关注。但目前的研究较少,特殊热单元影响整体热舒适的规律尚待深入探讨。以此为出发点,通过对某大学建筑学院进行现场实验、问卷调研、环境实测等方法,重点探究不舒适热单元对整体热舒适的影响规律。结果显示:当不舒适热单元的停留时长进入稳定状态之后,不舒适热单元会对整体热舒适产生不可忽视的不利影响;在不舒适热单元中停留的时长占整体活动时间的比例越大,对整体热舒适的影响越大;在不舒适热单元的停留时长未进入稳定状态时,停留时长越趋于稳定状态,其对整体热舒适的影响越大;不舒适热单元对于整体热舒适的影响也同其不舒适的程度有关,当PET≤9.23℃时,不舒适热单元对整体热舒适产生不利影响。进一步开展了对热舒适时间累积问题的研究,同时可为既有空间的热环境优化提供依据和更有针对性的思路。For indoor and outdoor spaces composed of multiple spatial units,different thermal experiences may arise due to the influence of different user behavior choices(such as path,dwell time,etc.),leading to a differentiated overall thermal comfort experience.Some special thermal units(such as excessively long dwell times and excessively discomfort)are sufficient to have a global influence on overall thermal comfort and require special attention.However,there is currently limited research,and the influence of special thermal units on overall thermal comfort needs to be further explored.This article takes this as the starting point and focuses on exploring the influence of uncomfortable thermal units on overall thermal comfort through on-site experiments,questionnaire surveys,environmental measurements,and other methods in a certain university's School of Architecture.The results show that when the residence time of the uncomfortable thermal unit reaches as stable state,the uncomfortable thermal unit will have an undeniable adverse effect on the overall thermal comfort;The greater the proportion of time spent in uncomfortable thermal units to the overall activity time,the greater the influence on overall thermal comfort;When the dwell time of the uncomfortable thermal unit does not enter as stable state,the longer the dwell time tends to stabilize,the greater its influence on overall thermal comfort;The influence of uncomfortable thermal units on overall thermal comfort is also related to their degree of discomfort.When the PET is≤9.23℃,it has a negative impact on overall thermal comfort.This study further develops the research on the accumulation of thermal comfort time,and can provide a basis and more targeted ideas for optimizing the thermal environment of existing spaces.

关 键 词：不舒适热单元 停留时长 整体热舒适 热中性PET 空间组合 

分 类 号：TU2[建筑科学—建筑设计及理论]