室内人体呼吸代谢暴露对学生阅读效率影响的实验研究  

Experimental study on the influence of human respiratory metabolic exposure on students’reading efficiency

作　　者：徐燊[1] 朱宇航 王明豪 XU Shen;ZHU Yuhang;WANG Minghao

机构地区：[1]华中科技大学建筑与城市规划学院,湖北省城镇化工程技术研究中心,自然资源部城市仿真重点实验室 [2]中信建筑设计研究总院有限公司

出　　处：《西部人居环境学刊》2024年第5期57-63,共7页Journal of Human Settlements in West China

基　　金：国家自然科学基金面上项目(52378020);华中科技大学学术前沿青年团队资助项目(2019QYTD10);亚热带建筑与城市科学全国重点实验室开放基金项目(2023KA02)。

摘　　要：高校教室是学生学习和生活的重要场所,其室内空气质量与学生健康及学习效率密切相关,而针对代谢污染暴露引起的健康影响量化研究还有待深化。本文以CO_(2)作为室内空气质量的表征参数,利用实验舱进行室内环境调控,通过主观舒适度评价、学习任务测试等方法,探讨不同工况(CO_(2)浓度分别为600 ppm、1000 ppm、1500 ppm、2000 ppm、2500 ppm、3000 ppm和4000 ppm)下人体代谢污染物对室内人员生理感知指标及各类型学习任务的影响关系。结果表明:第一,随着室内CO_(2)浓度升高,受试学生的热舒适度下降22.2%,其中人体的热感觉和病态建筑综合征(SBS)中各项生理反馈在室内CO_(2)浓度超过1500 ppm时发生显著变化;第二,CO_(2)浓度升高对校对任务速度的减缓影响更显著,而对文本阅读的影响主要表现在正确率上;第三,在高浓度工况下(4000 ppm)受试学生的综合阅读效率相比低浓度(1000 ppm)下降14.1%,而低于1500 ppm时维持更低的CO_(2)浓度对阅读效率的提高不会有明显收益。实验结果为教室空气质量调控和规范制定提供参考。College classrooms are the main places for students to study and live,and their indoor air quality is closely related to students’health and learning efficiency.Endogenous chemicals produced in densely populated classrooms are one of the major causes of indoor air quality problems.Exploring t he effects of human metabolic pollutants on t he health a nd work efficiency is t he basis for optimizing indoor air quality and formulating relevant standards.As an important indicator for judging indoor air quality,existing studies have mostly explored the correlation of pure CO_(2)exposure on human health,which is quite different from the real indoor environment.At the same time,studies on indoor air quality problems on work and study efficiency are mostly qualitative.However,based on multifunctional classrooms in diverse teaching modes in college,the relationship between the quantitative effects of indoor metabolic pollutants on health and the efficiency of different tasks needs to be further investigated.In this paper,different CO_(2)concentrations(600 ppm,1000 ppm,1500 ppm,2000 ppm,2500 ppm,3000 ppm,and 4000 ppm)were used to characterize the concentration of pollutants produced by human metabolism.Statistical methods were used to analyze changes in subjective comfort ratings,physiological indicator surveys,and task performance at different CO_(2)concentration levels through subjective questionnaires,verification tests,and text reading tests,and thus exploring the relationship between human metabolism pollutants on physiological perceptions and various types of learning tasks.The subjective comfort questionnaire consisted of two parts:indoor thermal comfort evaluation and self-assessment of sick building syndrome(SBS).Thermal comfort was categorized into five rating levels based on the index of“uncomfortable-very comfortable”,and the thermal sensation vote(TSV)was designed in according to the seven-level scale of ASHRAE.Sick Building Syndrome(SBS)was evaluated by a questionnaire based on the five categories of dia

关 键 词：高校教室 代谢污染暴露 室内CO_(2)浓度 阅读效率 热舒适 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]