EXPERIMENT AND NUMERICAL SIMULATION OF UTILIZING A VERTICAL GARDEN TO REDUCE INDOOR CARBON DIOXIDE QUANTITY
This study constructed a vertical garden in an indoor environment of control room to absorb the CO2 exhaled from human breathing,in order to improve the indoor air quality through plant photosynthesis.This study used Spathiphyllum kochii as the subject plant,and conducted experimental analysis of individual plant per 500ppm in the range from 500ppm to 5000ppm to obtain the absorption rates under different environmental CO2 concentration levels.Simulation on the flow field of air passing through the individual plant was conducted using the porous medium modeling.The absorption rates obtained from the experiments corresponding to different background CO2 concentrations were inputted into the absorption rates of the porous medium modeling to simulate the individual plantsCO2 absorption efficiency and compare the experimental results with the simulation results.In a control room with a vertical garden consisting 240 plants and a human being,the CO2 concentration distribution in the room was also experimentally and numerically investigated.By input the absorption rates of the individual plant corresponding to different environmental CO2 concentration levels into the porous medium modeling,the CO2 concentration distribution in the vertical garden can be simulated.The experimental results showed that,after 150 minutes,13% of CO2 generating from the human breathing can be absorbed by the 240 plants and the numerical results were well consistent with the experimental measured results.
YU KUANG-CHENG LUO WIN-JET WU PAI-CHEN
Department of Refrigeration,Air-conditioning and Energy Engineering,National Chin-Yi University of Technology,Taichung City 41170,Taiwan
国际会议
西安
英文
1-11
2012-08-26（万方平台首次上网日期，不代表论文的发表时间）