TY - JOUR
TI - CFD simulations of thermal comfort in naturally ventilated primary school classrooms
AU - Stevanović Žana
AU - Ilić Gradimir S
AU - Vukić Mića
AU - Živković Predrag M
AU - Blagojević Bratislav D
AU - Banjac Miloš J
JN - Thermal Science
PY - 2016
VL - 20
IS - 11
SP - 287
EP - 296
PT - Article
AB - The purpose of Thermal Comfort is to specify the combinations of indoor space  environment and personal factors that will produce thermal environment  conditions acceptable to 80% or more of the occupants within a space.  Naturally ventilated indoors has a very complex air movement, which depends  on numerous variables such as: outdoor interaction, intensity of  infiltration, the number of openings, the thermal inertia of walls, occupant  behaviors, etc. The most important mechanism for naturally ventilated indoors  is the intensity of infiltration and thermal buoyancy mechanism. In this  study the objective was to determine indicators of thermal comfort for  children, by the CFD model based on experimental measurements with  modification on turbulent and radiant heat transfer mathematical model. The  case study was selected on school children aged 8 and 9 years in primary  school „France Prešern“, Belgrade. The purpose was to evaluate the  relationships between the indoor environment and the subjective responses.  Also there was analysis of infiltration and stack effect based on  meterological data on site. The main parameters that were investigated are:  operative temperature, radiant temperature, concentration of CO2 and air  velocity. The new correction of turbulence and radiative heat transfer models  has been validated by comparison with experimental data using additional  statistical indicators. It was found that both turbulence model correct and  the new radiative model of nontransparent media have a significant influence  on CFD data set accuracy.