This work seeks to analyze the thermal comfort of the occupants in a large building of Commerce and Services, integrating measures of assessment and energy efficiency promotion. The building is still in the construction phase and at its conclusion, will correspond to a supermarket located in the Central region of Portugal. For the evaluation of thermal comfort, Fanger’s methodology was used, where the Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) were calculated based on a detailed analysis of the environmental variables. These are essential to obtain, namely, mean air velocity, mean radiant temperature, mean air temperature and relative humidity. The other crucial variables are the metabolic rate and the thermal clothing resistance. The simulations necessary for the thermal comfort assessment were performed in ANSYS Fluent, in order to minimize the energy consumption in the cold thermal zone of the building, the sales area with frozen and chilled food, by means of reducing the inflow of air, without compromising thermal Comfort. The final results showed that the reduction of the amount of air to be inflated did not compromise the thermal comfort of the occupants. The Computational Fluid Dynamics (CFD) methodology allowed the creation of comfort maps, albeit for a single zone due to computational limitations. According to the results, the most comfortable zone was located right below the air insufflation with the summer being a more comfortable season. In winter, the main problem detected was the cold located near the floor.

Currently, the energy consumption study in buildings is very important, since it is one of the sectors of activity where there is great potential to improve energy efficiency. On the market, there are several simulation software, and the aim of this work consists in conducting a comparison between two dynamic simulation software, EnergyPlus, and Revit, with respect to the results obtained of thermal loads and annual energy consumption of a service building. In the simulation using EnergyPlus, an annual energy consumption of 442 MWh was obtained, that compares with 533 MWh when using Revit. Concerning the thermal loads in the sales area of the hypermarket, the simulation results for the thermal loads were the following: 761 kW for heating and 79 kW for cooling, versus 924 kW for heating and 86 kW for cooling when using the EnergyPlus and the Revit software, respectively. This discrepancy between the values obtained could be due to the limited selection of climatic files in Revit as well as the different definitions of the HVAC systems.