Comparison of Simulation and Measurement in a Short-Term Evaluation of the Thermal Comfort Parameters of an Office in a Low-Carbon Building

The subject of the following analysis is the Research Centre building of the University of Zilina (RC UNIZA), which was purposely designed as a low-carbon project. The measurements of selected offices were carried out to verify how the building envelope and infill cooling system influences the indoor environment during the summer season. These measurements, along with the parameters of outdoor climate and its influence on the indoor thermal-humidity microclimate were monitored. Most of the data was then used in subsequent transient-state thermal simulation in an ESP-r program. The evaluation took two days to complete wherein an air-cooling system and ceiling radiant cooling were presented. The office during the test was not occupied and was therefore slightly cooler. Under these conditions (measured and simulated), PPD and PMV indexes were calculated during a 10 h time period with varying input parameters (metabolic heat and thermal resistance of clothing). According to the measurement and simulation, these indexes were compared. The comparison shows that the agreement depends on the chosen personal factors such as the thermal resistance of the clothing and metabolic heat. If these are chosen appropriately, then the differences between the results according to the measurement and the simulation were limited.

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