Abstract

Experimental Measurement and Computational Simulation Analysis of Indoor Air Quality in Office—Integration of Voltage Adsorption Dust Collection Device and Energy Recovery Ventilator

Highlights

  • Because particulate matter (PM) has been discharged by combustion-fired power plants and by sandstorms in China, poor outdoor air quality has directly and indirectly affected Taiwan (R.O.C.) in recent years and, poor air has permeated indoor spaces, reducing indoor air quality

  • 6.1 Concentrations of pollutants when both the energy recovery ventilator (ERV) and the voltage adsorption dust collection device (VADCD) are in operation

  • The experimental apparatus start time to operate the ERV and VADCD is between 09:00 AM and 18:00 PM from the first day to the seventh day per week

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Summary

Introduction

Because particulate matter (PM) has been discharged by combustion-fired power plants and by sandstorms in China, poor outdoor air quality has directly and indirectly affected Taiwan (R.O.C.) in recent years and, poor air has permeated indoor spaces, reducing indoor air quality. When people work in indoor offices for a long period of time, CO2 and other pollutants may have a cumulative effect, leading to chronic poisoning. In Singapore,(6) the concentration index of air pollutants has been proposed for commercial buildings. In Japan, there are two references, namely, the indoor chemical concentration index[9] and the Building Sanitation Management Standards,(10) for indoor air quality pollutant index and standards. The WHO[14] reported that the exposure of humans to polluted air containing PM2.5 or smaller particulates increases the incidence of cancers, cardiovascular diseases, respiratory diseases, and death. We used a voltage adsorption dust collection device (VADCD) to replace the high-efficiency particulate air filter and cooperate with an ERV, thereby recording and observing the measured values of indoor pollutants.

Computational Theoretical Equation
Basic assumptions of numerical simulation
Energy equation
Equation of the concentration diffusion
Simulation result for natural convection indoors
Simulation with ERV in open state
Introduction to experiments
Experimental equipment
Measurement apparatus and their specifications
Experimental area
Concentrations of pollutants when both the ERV and the VADCD are in operation
Results and comprehensive analysis of measured data
Conclusions
Ministry of the Environment of Singapore
Full Text
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