PR2007

The buildings sector accounts for 40% of the energy requirements in Europe, which is more than by industryor transport. That is a lot and it is too much! Buildingstherefore have a major part to play in meeting the emissions reductions targets! And buildings of the futureshould therefore be designed in mutual cooperation in the design teams, i.e. between architects, developers,clients, engineers, etc. from day one of the design phase. This paper presents an EU supported project commenced in January 2007 looking especially on the processes of integrated energy design - IED.

In the last decades researches have indicated an extremelyhigh energy consumption of the building sector. Analysing the amount of consumed energy, it is showed that almost the 70% are expended for the heating and cooling loads of the building. Therefore, it is of great interest to exhaust the possibilities to reduce the thermallosses through the buildings shell.

Earth heat exchange (EHX) through buried horizontal air ducts (EHXair-hor) can be an effective passive/ibryde system to reduce heating and cooling loads in temperate climate zones. This paper shows the results of the authorsmost recent testing and design experience on the field. Conclusions are drawn in relation to the necessity of further monitoring and testing on more complex and variegated EHXair-hor systems.

Microclimate condition in an environment is influenced by the local environment condition. Urban morphology,especially building, pavement and greenery are the main factors. The ambient temperature in a built area located nearby a large park can be reduced with the average of 1.3oC as compared with no park built environment.In other studies also show that area of urban elements (building, greenery and pavement) determines the temperature of a built environment.In the other study, it is found that urban heat island exists in National University of Singapore (NUS).

Ecology in Architecture Design (EAD) is a project with the main aim of developing a blended (face to face lecturesplus online activities) learning course about how to integrate ecology in the architectural design, both at the level of a single building and of territory. EAD started in July 2004 as a project founded by the Swiss University Conference within the Swiss Virtual Campus(SVC), the national program studying the introductionof information and communication technologies in universities and universities of applied sciences.

Every time with major frequency grows the necessity of energy efficient buildings, adapted to their environment, which consume and contaminate as least as possible.In this study it has been analyzed and evaluated the thermal conditioning of two blocks of flats, a renovation one and a new one, taking advantage of the bioclimatic technologies and using renewable sources of energy.

The building sector is at present responsible for more than 40 % of the EU energy consumption. There are technologies under development, which could substantiallyimprove (up to 30 %) the energy performance of buildings, reducing the conventional energy demand in new and existing buildings and substantially contributingto reduce energy intensity, through combined measures of rational use of energy and integrationof renewable energy technologies.

When an energy balance is calculated in accordance with DIN V 18599, an integrative approach is taken, i.e. the building carcass and the utilization of the buildings technical installationsand equipment are evaluated together,taking the interaction of these factors into consideration.In order to provide a clearer structure, the DIN V 18599 series of preliminarystandards is divided into several parts, each having a particular focus. The DIN V 18599 series of preliminary standards providesa method of calculating the overall energy balance of buildings.

This research aims at developing new standardized typologiesof semitransparent double skin facades formed by an external semitransparent PV laminate, a wide air gap and a rear glass (Figure 1). There are actually many buildings in Europe which incorporate such activefacades, but all them have been designed as user defined projects and very few of them accurately evaluatethe feasibility of using the heat produced by the air channel.

This study compares various optimization criteria for a solar domestic hot water system (SDHWS). First of all, we present the various parameters used to evaluate a SDHWS. We consider the energetic, exergetic, environmentaland financial analysis. Various optimization criteria of a standard solar hot water system are then proposed. The optimized solutions are compared with a standard hot water system.