Monitorización y control de las condiciones básicas de calidad del aire en un espacio docente universitario

Abstract

Carbon dioxide concentration, temperature and relative

humidity in an indoor environment are some of the main

indicators that determine the basic conditions of indoor air

quality (IAQ). These parameters are directly related to the

airborne transmission of diseases. In this context, ventilation

regulation is essential to balance safety through air renewal,

with comfort and energy efficiency. In this research, an

educational space of the School of Engineering at the

University of Cadiz is considered to monitor and control IAQ.

To begin with, the weaknesses of the ventilation and air

conditioning systems are analyzed and identified. Next, a

low-cost device to monitor IAQ is designed, developed and

prototyped with a set of sensors and control elements. Then,

the room is modeled and simulated using computational

fluid dynamics (CFD), to select the location (placement/

layout and quantity) of the sensors responsible for measuring

the parameters that characterize IAQ. Finally, the wirelessly

collected data are evaluated for interpretation, thanks to an

Internet of Things (IoT) platform, in real time or deferred.