The results derived from building simulations, of window shading profiles in winter, indicate that if shutters remain closed on the North West orientated fenestration, the reduction of solar gains and consequently the drop of indoor temperature is insignificant (0.1 to 0.2 deg. Celsius Table 1, 1.0, 1.1, 1.2). This is mainly attributed to: i) Area […]

The specific heating demand of the investigated building was determined to be 12.3 kWh/m2a. This value proves the building to be designed according to passive house standard. Due to high internal loads and large glazing areas, a cooling demand was expected even for a location in central Germany. However, due to the external shading devices […]

From 1st February 2006 until 31 July 2008, the daily average electrical energy delivered to the grid by the PV systems was 53.7 kWh, corresponding to 23.6 kWh produced in the park and to 30.0 kWh produced in the fagade, Table 8. The average daily consumption of the Solar XXI building was of 74.6 kWh […]

Concerning the external conditions the monitoring periods that presented lower temperatures during more time were the ones corresponding to the measurements made in housing units1a, 2, 4, 5 and 9, during approximately 5% of the time the temperatures were below 5°C and in approximately 30%-40% of the time the temperatures were between 5°C and 10°C. […]

Joao Mariz Graga1, Joao Bento2 and Helder Gonsalves1 1 INETI – Instituto National de Engenharia, Tecnologia e Inovagao;Estrada do Pago do Lumiar, 22, 1649-038 Lisboa2 Instituto Superior Tecnico, Av. Rovisco Pais, 1049-001 Lisboa A tool for support the design of bioclimatic buildings is under development. This tool is also specialy adapted to the particular needs […]

The solutions of adequate solar protections in terms of visual comfort were determined by using Energy Plus, Daysim and Google Sketchup. Several reasons can explain this choice: The 3D modeller Google Sketchup is now widely used as a design tool of reference internationally [7]. Besides, the intuitive handling is very easy and allows to quickly […]

The task is about midway in the progress, and most of the expected outcome has still to be developed. However, some information is already available at the task web-site: www. iea-shc. org/task37 • Task 37 flyer • The exemplary housing renovation brochures With financial support from the Enova and the State Housing Bank in Norway, […]

Some of the installations projected will also be used for the cooling system of the building. • Upper air grilles. • During night hours, use of grilles to collect cool air flow generated at an artificial lake located in front of the South facade. • Absorption engine, supplied by solar thermal panels and a biomass […]