A first Post Occupancy Evaluation (POE) study on a solar neighborhood in Israel shows there are certain discrepancies between the planner’s intentions and the final outcome. These stem from each specific resident’s acquaintance with the local climate and
A common rule of thumb in solar applications is that maximum solar input on a flat collector comes when facing towards the equator at a slope equal to the locations latitude. Strict adherence to this rule leads frequently to layouts of questionable aesthetics, with the solar element detached from the geometry of the building in the name of optimum performance. An analytical study of solar irradiation on a plane as a function of its orientation and slope has shown that this rule can be disregarded to certain extends at a negligible energy shortfall.
The paper is divided in two parts: the first is about the microclimatic function of the vegetation in built area. Experimental data in different contexts case studies- are analysed in order to define guide-lines for cooling. The second presents a data base of the ecological, functional, morphological characteristics of trees and shrubs. This data base contains sixty elements and is a useful tool for designers, when they want to put green elements in an urban context.
During the last two decades, the Building Energy Management Systems (BEMS) showed a systematic development in Greek market. Many factors affect the BEMS penetration into the Greek market. Among others, the most important are the increment of private building construction activity and the establishment of a relevant legal framework to comply with the respective European one. The aim of this paper is to present the development of BEMS market in Greece and the legal framework that should comply with the European Directive regarding the energy performance of the buildings.
Shading provision should be considered as an integral part of fenestration system design for commercial and office buildings, in order to balance daylighting requirements versus the need to reduce solar gains. Utilization of daylight in buildings may result in reduction in electricity consumption for lighting but also in high cooling demand if excessive solar gains are admitted in the working space. Moreover, visual comfort should be ensured especially for perimeter office spaces. Shading devices can control solar gains and simultaneously allow adequate daylight to the interior.
of innovative daylighting systems and passive cooling techniques implemented in a typical commercial building. The main objectives are the application of innovative daylighting and passive cooling systems to obtain energy savings and to provide thermal and luminous comfort conditions for the occupants. The case study building selected for investigation is located in Mexico City.
This paper presents the results of a comparative study aiming to investigate the effect of reflective coatings on lowering surface temperatures of buildings and other surfaces of the urban environment, and thus test their suitability to lower ambient temperatures and fight the heat island effect. In total, 14 types of reflective coatings on surfaces of the urban environment were studied, from August to October 2004.
Techniques and technologies for use in designing, constructing and operating intelligent buildings are well known or available on the market and many intelligent buildings have been built. However, just how intelligent these buildings actually are in comparison to conventional buildings is often a question. Due to the lack of a commonly accepted method and pertinent supporting data, the assessment of the overall performance of intelligent buildings cannot be carried out.
Satellite images in the thermal infrared can be used for assessing the thermal urban environment as well as for defining heat islands in urban areas. In this paper, the thermal environment of major cities in Greece (Athens, Thessaloniki, Patra, Volos and Heraklion) is examined by using satellite images provided by the Landsat Enhanced Thematic Mapper (ETM+) sensor on board Landsat 7 platform corresponding to daytime and warm period, when the surface urban heat island (UHI) phenomenon is best observed.
This project is intended to supply information to architects and engineers throughout Europe to support the Energy Directive on Buildings through providing design and engineering details of high quality, low energy consumption public buildings throughout the EU. Buildings will be chosen from the participating countries (UK, France, Germany, Italy and Spain) as well as from other European countries in different climatic zones. In total this means 25 buildings.
Login