Thermal comfort in highly glazed buildings determined for weather years on account of solar radiation

The presented work is devoted to the analysis of thermal comfort indexes in highly glazed buildings under different weather conditions. All cases considered here differ in thermo-optical properties (such as thermal resistance, transmission), geometry, construction and orientation. Building performance simulation models (thermal and air flow) were defined using simulation software ESP-r. According to the workflow, proposed by authors, the optimal solution for glazing façade system was found for each of four main directions: N, E, S and W. In the proposed method three criteria were used: PMV and PPD indexes during heating and cooling seasons and average PPD index for the whole year. All obtained results were analysed statistically. The basic weather database was worked out according to the WYEC2 standard procedure, based on the data of European location characterized by moderate climatic conditions. The second part of this study consists of the analysis according to different weather scenarios. Standard WYEC2 data set was modified by using various indexes for solar radiation and ambient temperature (modified WYEC2 database). Optimization algorithm were proceeded again according to the same workflow. Based on the final results, the effect of different weather data sets was estimated. The general final conclusions are that::

• optimal solution obtained on the basis of PPD and PMV indexes (for heating and cooling period), is different from the solution obtained on the basis of annually averaged value of PPD,
• final optimal solution depends on the assumed meteorological database (WYEC2 with different indexes), even then the input data (measured meteorological parameters of thirty years) are the same.