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.

The idea proposed in this paper is to control the HVAC equipment with predicting the heating/cooling loads and indoor conditions by computational simulation according to the target, such as energy consumption, energy cost, CO2 generation and indoor thermal comfort. The simulation inputs is given by the measurement results, e.g. weather conditions, indoor temperature and humidity on the spot. The developed system controls HVAC system by using the real-time simulation, and investigates the performance of this system.

The paper presents the evaluation of the current HVAC components and indoor climate of a high tech Naval Depot in case of failure events. The methodology of the research was: First, implementation of the heat, air & moisture models of the building and HVAC components in SimuLink. Second, validation of the models using measured data from the present building control system. Third, simulation of the current and new HVAC systems designs. Fourth, discussion of the usability of the approach.

For the conservation of an important museum collection in a historic building a better controlled indoor climate may be necessary. One of the most important factors is controlling relative humidity. Museum collections often are part of the interior of a historic building. In most cases the installation of an expensive air-conditioning system may cause damage to the building and its historic authenticity. Furthermore humidifying may lead to dramatic indoor air conditions with mould and condensation effects on the cold indoor surfaces or even internal condensation in the construction.