文献类型：期刊文献

英文题名：Experimental and Numerical Model Investigations of Oxygen-Enriched Characteristics in Air-Conditioned Rooms

作者：Zhang, Chuanzhao[1];Yang, Xiong[2];Li, Ziyi[2];Liu, Yingshu[2];Zhao, Yu[3];Wang, Haoyu[1,3];Ma, Xiaojun[1];Li, Chunwang[1];Zhang, Yuanhui[3]

第一作者：张传钊

通讯作者：Wang, HY[1];Wang, HY[2]

机构：[1]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[2]Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China;[3]Univ Illinois, Dept Agr & Biol Engn, Urbana, IL 61801 USA

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[2]corresponding author), Univ Illinois, Dept Agr & Biol Engn, Urbana, IL 61801 USA.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2021

卷号：11

期号：11

外文期刊名：APPLIED SCIENCES-BASEL

收录：;Scopus(收录号：2-s2.0-85106979819);WOS:【SCI-EXPANDED(收录号:WOS:000659600900001)】；

基金：The study was supported by the China National Key R&D Program 'Energy-saving design and key technical equipment development for clean air-conditioning plants' (Grant No. 2018YFC0705204), the National Natural Science Foundation of Beijing (Grant No. 8182019), the National Natural Science Foundation of China (Grant No. 51578065), the Beijing Education Commission General Project (Grant No. KM202011417007), and the Premium Funding Project for Academic Human Resources Development at Beijing Union University.

语种：英文

外文关键词：micro-hypoxia; air-conditioned room; oxygen-enriched area; CFD; oxygen supply vent

摘要：People who live and work in air-conditioned rooms with micro-hypoxia are prone to sick building syndrome (SBS). Enriching oxygen into an air-conditioned room to increase the oxygen concentration can improve indoor air quality (IAQ) and reduce ventilation to save building energy consumption. In the present paper, the number and diameter of the oxygen supply vents, the oxygen supply flow rate, the oxygen supply method and the air flow organization form were comparatively studied using a numerical model. The results were compared with the experiments results in un-air-conditioned rooms, which showed that this model can give a favorable prediction. The results show that the maximum axial velocity decreases with the increase of the axial distance under air-conditioned conditions. The relationship between the oxygen-enriched area and the oxygen flow rate is obtained by fitting. The diameter of the oxygen supply pipe is 0.006 m, and when oxygen supply methods 1# and 4# are adopted, the oxygen-enriched area is F = 0.4 + 0.383 Q and F = 0.237 + 0.8 Q, respectively.