The impact of air renewal on indoor air quality and thermal conditioning in classrooms
DOI:
https://doi.org/10.46421/encac.v17i1.4629Keywords:
IAQ, Computational simulation, Energy simulation, Covid-19, Brazilian schoolsAbstract
This research aims to evaluate the impact the insertion of a constant ventilation rate can have on Indoor Air Quality (IAQ) and energy consumption for thermal conditioning. The experimental method evaluates a Brazilian standard classroom of schools of the National Fund for the Development of Education - FNDE through computer simulation in the city of Florianópolis-SC. The EnergyPlus program inserted in the grasshopper through the Honeybee plugin was adopted and the ideal loads for thermal conditioning and a percentage of hours in IAQ are established as evaluation criteria. This criterion has been subdivided into 2: COVID Calculator and CO₂ concentration in ppm. The simulations evaluated the impact of inserting a constant ventilation rate based on guidelines aimed at controlling the COVID-19 pandemic (10 L/s for each person) and the demanded control ventilation (DCV). The results indicate the natural ventilation (NV) scenarios have lower energy consumption and mixed-mode has the best results in both criteria. The best result was with DCV and only constant ventilation rate can guarantee IAQ 100% of the time.
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