Real –Time Monitoring with Integrated Control of Air Quality in Buildings空气质量的实时监测和组合监测.pdf

Real –Time Monitoring with
Integrated Control of Air Quality in Buildings

Ir . Lau and Ir . Chan
Architectural Services Department
Hong Kong SAR Government


SUMMARY

The levels of air quality parameters of a building are always changing with time. Air
quality level signals from real-time monitoring instruments can be used to control
functioning of an air-conditioning system to respond to the real-time levels of air
quality parameters. This enables us to control the air conditioning to the levels of our
pre-set targets to avoid wastage of energy due to over provision. parison real-
time control with periodic sampling of air quality parameters, real-time control can
respond to the actual air quality so as to ensure achievement of the pre-set targets.


A proposal is made to classify the air quality parameters into three categories. The
Primary Parameters prise of temperature, relative humidity, carbon dioxide,
carbon monoxide, nitrogen dioxide and ventilation with positive air pressure. The
Secondary Parameters prise of ozone, total pound,
formaldehyde, and respirable suspended particles. The Tertiary Parameters shall
comprise of radon, air velocity and airborne bacteria.

Continuous monitoring of the profiles on the Primary Parameters can be integrated in
the automatic control of HVAC systems and also be effectively used in routine
building management. The need for continuous monitoring of the Secondary
Parameters is at discretion of the building management. Measurement of the Tertiary
Parameters shall only be done under expert advice and supervision.

The importance of categorizing the indoor air quality parameters, the methodology of
real-time measurements of air quality parameters, and the application of real-time air
condition control are discussed.

Keywords: real-time air quality parameters control monitor

INTRODUCTION

All modern office buildings and shopping centers are a