文献类型：期刊文献

英文题名：Field and Intervention Studies on Indoor Temperature and Air Quality in Classrooms

作者：Lyu, Yue[1,2]; Chen, Zhongqing[2]

机构：[1] School of Civil Engineering, Shaoxing University, Zhejiang Province, Shaoxing, 312000, China; [2] Centre of Rock Mechanics and Geological Disaster, Shaoxing University, Zhejiang Province, Shaoxing, 312000, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230069737)

语种：英文

外文关键词：Carbon dioxide - Indoor air pollution - Population statistics - Quality control - Space heating - Volatile organic compounds

外文摘要：In order to study the variation of internal and external environment of classroom during the lecture time, multiple field experiments and intervention experiments of outdoor and indoor temperature were conducted in a class of a university in Shaoxing in the spring semester (100 minutes in duration, 0.32-039 people/m2 for population density). We kept a record of environmental data in each 5-min, such as outdoor and indoor temperature, outdoor and indoor relative humidity, CO2 concentration. The volatile organic compounds were taken as a sample and the indoor air quality was evaluated multiple times. The field measurement findings illustrated that average indoor air temperature and indoor relative humidity in classroom was 17.8-29.2 °C and 34.5%-91.0%, respectively; the total volatile organic compounds (TVOC) and average CO2 concentration was 330-682 ppbm and 921.6-1805.2 ppmv, respectively. Subjective evaluation results from the intervention tests indicated the intensity of odor perceived from the invitees increased significantly entering the classroom. When the CO2 concentration reached 2296 ppmv, the air quality acceptability and satisfaction from subjects and invitees decreased significantly. In 17-31 °C, CO2 emission rate of human body was estimated to increase by 0.56 L/H for each 1 °C increase in temperature. In order to keep indoor CO2 concentration at 1000 ppmv, ventilation rate needed for each person should be an increase in 0.25 L/S. ? 2023, The Authors. All rights reserved.