English

Different types of thermal activation of building structuresare increasingly utilized in buildings including BIPV, multifunctional PV facades with controllable daylight/solar gain features and integrating thermal and electrical output.

This presentation projects the potential of mass interwovenwith other aspects of Bioclimatic Design, with the objective of energy conservation and utilization of renewable energy resources for indoor comfort.The variable of mass and its effect on other variables and parameters in building simulations are outlined and discussed.

As the EPBD related regulations can not cover all possible kind of new technologies, Member States have to develop “principle of equivalence” procedures, in order to allow the assessment of the systems not covered by the standard calculation procedures. This paper will first discuss the overall context, followed by a description of the approach used in several countries. Then, a brief summary of related international projects is given. Finally, there is a more in depth presentation of the approach proposed in Belgium.

A methodology approach in order to simulate numerically(CFD) a greenhouse equipped with fan and pad evaporative cooling system is presented. Using the main aspects of evaporative cooling systems in terms of heat and mass transfer, the flow and boundary conditions of the simulation model are identified integrating both the external and internal climatic conditions. The crop (tomato)was simulated using the equivalent porous mediumapproach by the addition of a momentum source term.

In high performance office new buildings and renovations nowadays it is common practice to use multiple façade technology. Double-skin facades are new possibilities for principal and architects seeking creative innovative design that are intelligently adapted to environmental conditions. The new possibilities make it difficult to make choices in the beginning of the design process. Methods to help the designers to make the right decisions are wanted. A method will be presented to support the evaluation within the design process of different facade concepts.

The article 6 clause 9 of the Italian Decree Law 192/05, that transposes the European Directive 2002/91/EC on the energy performance of buildings (EPBD), supportsthe definition of simplified methods in order to carry out the energy certification of existing buildings minimizing costs imposed on final users.

In this study, high-spatial resolution multispectral satelliteimages collected over the metropolitan Athens area in Greece are used to generate a) a broadband albedo map depicting the albedo spatial variations across the metropolitan area, b) a vegetation cover map showingthe spatial distribution of urban vegetation and c) a daytime and night-time surface temperature map depictingthe spatial variations of the surface temperature across the city.

As both CFD and building simulation have their own limitationsin the thermal prediction of natural ventilation. Externalcoupled simulation method between CFD (FLUENT) and building simulation (ESP-r) hasbeen put forward for thermalenvironment prediction for naturally ventilated building design. Thecoupling mechanism and coupling program interfaceare introduced in the paper. Full CFD simulation and on site field measurements are done for the validation of the coupled simulationmethod.

The fungal index is a biological climate-parameter, which represents the environmental capacity toallow fungal growth. The author developed software that determines the computed fungal index,which was estimated using the Excel software "INDEX" from the measured temperature and relativehumidity. The computed fungal index and the measured fungal index, determined using a fungaldetector encapsulating fungal spores, were determined in 10 rooms in six dwelling houses.

The paper examines the energy performance of student residence buildings and investigates the possibility of applying environmental design principles and measures in order to improve their cooling energy performance and indoor environment.A detailed study for the student residence buildings of the Higher Technological Institute (ATEI) of Larissa was performed.