Glazed courtyard at Taernan. Thermal performance of the courtyard and surrounding residential buildings. Measurements and calculations

摘要

There is a need for the temperature in a glazed space and the energy requirement in the surrounding buildings to be calculated already during the design phase. In order to increase knowledge, measurements and calculations have been carried out for a glazed courtyard with passive climatic control at the block Taernan, Landskrona. The measurements comprise, inter alia, the outside climate, the temperature at different levels inside the glazed space, control of vents and solar control curtains, and the energy requirements in the surrounding buildings. The measurements show that the temperature in the courtyard is greatly affected by the outside climate. Owing to the geometrical configuration of the courtyard with surrounding buildings, the temperature level is low and during cold periods there is a high risk of frost. Since the temperature level in the glazed courtyard is low, the reduction of energy requirement in the surrounding buildings is only marginal and cannot justify glazing of the courtyard. The temperature at different levels in the courtyard has been calculated with the computer program DEROB-LTH and compared with measurements. Agreement is very good, but further improvements will be made to the computer program. Calculations have also been made to study alternative configurations. The effect due to changing single glazing to double or triple glazing, and changing heat storage capacity and orientation, has been discussed. 8 refs., 80 figs., 5 tabs.