居家型空間CO2濃度降解之研究

A Study on Degradation of CO2 Concentration in Indoor Living Space

黃忠義(Chung-Yi Huang)

指導教授 ： 李文興

共同指導教授 ： 卓清松

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00702

摘要

國人每人每天約有80∼90%的時間處於室內環境中(包括在住家、辦公室或其他建築物內)，室內空氣品質（IAQ）的良窳與否，在室內空氣品質管理法頒布後，成為大家關注的焦點。本研究以居家為主軸，由於國內居家空間之種類繁多且室內空間佈置並無一致性，因此採用污染物質量平衡模式為基礎，用CNS6873室內換氣量之測定法（作業中1.0之能量代謝率每人CO2呼出量0.023m3/hr）量測室內容積89.125m3的無隔間環境，以全熱交換器及植物等方式探討CO2濃度降解變化情形。
實驗結果顯示，於密閉空間且無使用全熱交換器，放置植物(6吋吊蘭3盆)距離地面0.9m，使用T5型日光燈在吊蘭高度量測照度為504 Lux，其植物降解CO2濃度約為34 ppm/hr；無放置植物使用全熱交換器中速（風量355 CMH），開啟循環風扇進行測試，5人CO2濃度量測值為825 ppm、7人CO2濃度量測值為966 ppm、8人CO2濃度量測值為1086 ppm與10人CO2濃度量測值為1191 ppm，最多僅7人使用可降解至空氣品質管理法CO2 1000ppm最低需求，每人降解（使用空間12.73m3）所需風量為50.7 CMH。

關鍵字

室內空氣品質 ； 二氧化碳 ； 全熱交換器

並列摘要

Taiwanese spend about 80-90% of their time per day in indoor environments (including homes, offices and other buildings). Following the promulgation of the Indoor Air Quality Management Act, how good is our indoor air quality has become the focus of public attention. This study focused on examining the degradation of CO2 concentrations in homes based on the mass balance model for pollutants because of the numerous types of home spaces and inconsistency in indoor layout and using the CNS6873 indoor ventilation baseline (exhaled CO2 per person at 0.023m3/hr with basal metabolic rate of 1.0 in operation) for measuring a non-partitioned environment with an indoor capacity of 89.125m3 as well as using a full heat exchanger and plants.
Experiment results showed that in an enclosed space, where no full heat exchanger was used, but plants (three baskets of 6 inch hanging orchids) were placed 0.9m above ground with illuminance of 504 Lux from a T5 fluorescent light measured at the height of the hanging orchids, the degradation of CO2 concentrations by the plants was about 34 ppm/hr. In the same space, without plants but with a full heat exchanger, which operated at a mid-speed (with an air volume of 355 CMH), and of which the circulating fan was activated for testing, the measured CO2 concentrations were 825 ppm in 5 persons, 966 ppm in 7 persons, 1086 ppm in 8 persons, and 1191 ppm in 10 persons. This means that CO2 concentrations could be degraded to the required minimum of 1000ppm in the Indoor Air Quality Management Act in only a maximum of 7 persons and the required air volume was 50.7 CMH for the degradation per person (with space usage of 12.73m3).

並列關鍵字

Indoor Air Quality ； Carbon Dioxide ； Total Heat Exchanger

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