Application of scale models along with the use of wind tunnel testing facility have been the primary tool used in building aerodynamic studies by architects and planners. Problem areas in a given airflow study could be identified by an experience wind engineer; however, the timely sharing the results with the design team becomes essential for a successful project.

As a large part of the education year occurs during the cold weather season, the proportionally largeglass areas permit excessive heat loss in the classrooms. The problem with large glass areas arisesfrom the lack of control of mechanically generated heating systems. A solution for the improvement of these classrooms, is to use solar energy in the design, which is economical and practical. In thisstudy, a school in Istanbul, which has existing large classroom windows and has a solar energycollector behind the south classroom window is introduced and measurements are evaluated.

In Cuba the climate is tropical, with average solar radiation of 5.5 kW-h/m2and an annual average temperature of 25 °C. The relative humidity is high all of the time, with an annual average between 75 % and 85%. Because of this it is very interesting to t

The use of heat produced by solar thermal collectors is an interesting option for thermal driven airconditioning process. Three technologies are commercially available: absorption, adsorption anddesiccant cooling systems. This paper is focused on solar desiccant cooling and solar absorptionsystems. The aim of the study is to assess energetic and comfort performances of these solar coolingsystems integrated in an office building.

European Directive for Energy Performance of Buildings (EPBD) was approved in the beginning of2003. The transition period is 3-6 years depending of the article. European StandardisationOrganisation (CEN) has drafted several standards to help the member countries implementing thedirective. One of these is the Criteria for the indoor environment including thermal, indoor airquality (ventilation) light and noise. The standard specifies design values of indoor environment,values to be used in energy calculations, and methods how to verify the specified indoorenvironment in the buildings.

Positive input ventilation (PIV) systems were installed in a new build housing development inBallantrae in south west Scotland; utilising a glazed sunspace on the south elevation of each dwelling to augment the energy saving potential of the installation. Data logging equipment was installed in each dwelling to enable assessment of the energy efficincy improvement to the property over traditional systems of ventilation.

An Earth-to-Air Heat Exchanger (ETAHE) is a low energy cooling and heating technology for buildings. It uses the ground’s thermal storage capacity to dampen ambient air temperature oscillations by delivering outdoor air to indoor through a horizontally bu

Balanced ventilation systems with heat recovery and earth to air heat exchangers are interestingtechniques, which can reduce heating and cooling demand of buildings, and improve internal thermal comfort. A numerical study is carried out to evaluate the impact of these two systems on the energy consumption and thermal comfort of a single family house. The impact on the CO2 emission is also given.

The actions to limit the energy consumption and the electricity demand lead in Europe and inFrance to think about the energy labelling of the consumption of the fans used in ventilationsystems. This is a complicated task as it has to take into account the multiple possibleoperating conditions, the eventual presence of a regulation system and the type of use.A study supported by Ademe has been carried out in order to propose a method for labelling ofthe ventilation units. This study was divided in four phases.

This presentation will make the audience aware of the importance of ISO-recognized certificationprograms in the testing adjusting and balancing and commissioning of HVAC systems. ImportantISO 17024 standards will be covered as well as their importance. Many faults have been found inexisting testing adjusting and balancing and commissioning certification programs ranging fromconflicting issues within the organization and their testing procedures; political control over theprocess; inconstant certification methods; geographical differences.