A CFD Study on the Impact of User-Adjusted HVAC System Controls in Open-Plan Offices
Brenda Loeser (Universidade Federal de Santa Catarina)
Natasha Gapski (Universidade Federal de Santa Catarina)
Mateus Bavaresco (Universidade Federal de Santa Catarina)
Ana Paula Melo (Universidade Federal de Santa Catarina)
Nayara Sakiyama (Federal University of Vales do Jequitinhonha e Mucuri)
Maíra André (The University of Sydney)
More Info
expand_more
Abstract
This study examines the impact of user-controlled HVAC systems on thermal comfort and air quality in open-plan offices. Traditional HVAC approaches often focus on setpoints, velocities, and airflow directions but overlook localised discomfort and uneven distribution. CFD simulations showed that optimising airflow direction improves thermal comfort without increasing energy use. However, higher indoor temperatures affected CO
2 dispersion, maintaining elevated concentrations in the occupant’s breathing zone. The study highlights the importance of balancing thermal comfort and air quality with HVAC strategies. Future research should explore integrating Personal Environmental Control Systems (PECS) and assess their impact on CO
2 concentrations and energy efficiency.