Insuring Thermal Comfort in Climatized Office Buildings

The window coverage of buildings has increased in the past five years. This is especially true for office buildings. The national guidelines (ISO, DIN, CEN) advise designing according to the operative temperature. Following the advice leads to higher operative temperature than inside temperature in buildings with greater window coverage. We made local measurements in an office building. We determined air temperature operative temperature, subjective thermal votes, PMV, and PPD. Our paper contains the results of these measurements and conclusions. A new feature in our lecture is the on-spot complex thermal comfort analysis with temperature measuring, PMV-PPD measuring and a questionnaire-based survey. Measuring results have proved that a favourable temperature comfort can be assured only by taking into account the operative temperature.