This paper presents the basic parameters and energy flows of an aquifer thermal energy storage (ATES) systemcombined with reversible water/water heat pumps used for heating and cooling the new hospital Klina (Antwerp Belgium). The system is one of the first ATES projects in Belgium, and its operation is monitoredwith the aid of a DAQ system. The energy flows, primary energy consumption and CO2 emission reductionwere calculated based on DAQ loggings of the first 3 years of systems operation.

This paper describes ongoing energy benchmarks studies of double-skin façade buildings. A comparison between energy performance of these actual buildings and European office buildings benchmarks is discussed. Some preliminary results are presented.

Traditional architecture while energy consumption has not been defined as today, have utilized some passive design methods by attending to the potentials of the regionand made them highlight. At hot climate such as Iran, one of the outstanding technical solution for providingventilation, both for body and structural cooling, were already used in ancient times. Furthermore, other techniques had been applied for achieving comfort and controlling it, as main target, at night, day and each season.A fundamental idea of this approach is focusing on providing zero-condition.

Since recent years cooling demand in office buildings has tremendously increased due to higher internal heat production of equipment, lighting and higher thermal comfort requirements. Classical cooling machines needs a lot of electricity to cover these high demands when primary energy factors are taken into consideration. The use of vertical borehole heat exchangers (BHEs) in combination with a ground source heat pump (GSHP) reduces the energy consumption for the office building. The optimum number of vertical borehole heat exchangers is simulated.

For many reasons building simulation programs are still not recognized as useful design support tools to the same extent as Computer-Aided Design (CAD) or cost-estimating software. There is a strong perception that simulations are time consuming, costly, slow and require expensive or specialized equipment and knowledge that increase design costs. Additionally, simplifications applied to model description, algorithm inaccuracy, or deviations inherent to weather data treatment methods result in poor matches between measurements and predictions, which decrease confidence in obtained results.

Building AdVent is a new collaborative project funded by the EU through its Intelligent Energy – Europe (IEE) programme. The aim is to help spread good practice in ventilation design through a series of case studies and supportive teaching materials. This

In November 2006 a “CO2 emission and energy saving potential through correct pipe insulation of space heating and domestic hot water distribution systems in the new and existing buildings.” paper [3], sponsored by Armacell - worldwide producer of flexible

Library buildings offer special conditions to favor the adoption of low energy strategies. In addition, their potentialhigh degree of interaction with the youth and a specific educational role makes of libraries one of the best typologies of public buildings to spread good practiceson how to manage energy, indoor environment and sustainability. This study focuses on the energy efficiencyof libraries in the West and Tejo Valley Region, Portugal, in the context of the elaboration of its new regionalplan (PROT) [1].

The climate in southern Brazil is characterised by mild winters and hot-humid summers which requires the design to be adaptable to the often conflicting summer and winter requirements. In the residential sector, air conditioning consumption is still low, but it has been growing significantly along with an increase in peoples purchasing power, which emphasizes the importance of encouraging a change in construction practices (MME, 2001).

The Project of Ponte da Pedra came out of an Ideas Competition, which is, by the beginning, a good indicatorof the high quality of the housing architecture of Ponte da Pedra.