Human thermal comfort simulation in meeting room with sidewall supply and return air conditioner in summer working condition

Based on the bio-thermal equation of human body, adopts a two-node model and simulates the human body temperature distribution and the thermal environment of air conditioning rooms with sidewall air supply by coupled solution of convection, radiation and heat balance. Considering the effects of human body convection and radiation, calculates the indoor thermal environmental parameters with the coupled method and solar ray tracing method. Investigates the indoor wind speed distribution, temperature distribution and their rules. Calculates the values of indoor PMV and PPD and analyses the thermal comfort of indoor occupants. The results show that the simulation data of human body surface temperature distribution is in accordance with the test results of related literatures. Wind speed and temperature greatly influence human thermal comfort. In an air conditioning room with the air distribution form of sidewall air supply and return, the thermal comfort is poor when close to air inlets, and will be better when away from air inlets.