The paper presents the results of the measurements and integrated simulation of the energy demand and air exchange in one of the flats located in a 5-storey building located in urban area. The experiment was carried out during 3 weeks of March. The total energy consumption necessary for flat heating was measured continuously (at a 2 sec time step). After measurements were finished the energy demand and ventilating air flows were calculated assuming the same weather data variation as measured during the experiment, using the ESP-r software.

The application of system identification techniques to the energy performance of buildings and building components requires a very high level of knowledge of physical and mathematical processes. This factor, combined with the quality of the data, the description of the monitoring environment and procedure, together with the experience of the user of the analysis software itself, can end up in varying results from different users when applying different models and software packages.

La percepción del ambiente térmico no depende únicamente de los parámetros ambientales, sino que es un fenómeno que incluye muchos más factores del entorno interior y exterior, del sujeto que percibe estos parámetros. Incluso habría que considerar factore

Se analizan las posibilidades que se han visto tienen el empleo de los acumuladores de cambio de fase en la climatización, destacándose las ventajas que se han encontrado, tales como: la posible eliminación de las torres y condensadores evaporativos, por

Airflow characteristics in ventilated and air-conditioned spaces play an important role to attain comfort and hygiene conditions. This paper utilizes a 3D Computational Fluid Dynamics (CFD) model to assess the airflow characteristics in ventilated and air-conditioned archeological tombs of Egyptian Kings in the Valley of the Kings in Luxor, Egypt.

The balance between thermal comfort and air quality in healthcare facilities to optimize the Indoor Air Quality (IAQ) is the main aim of this paper. The present paper will present this balance from the viewpoint of the air conditioning design. It was found that the design of the HVAC airside systems plays an important role for achieving the optimum air quality beside the optimum comfort level. This paper highlights the importance of the proper airside design on the IAQ.

Commissioning plays an essential role for ensuring the quality of any HVAC system. Without detailed commissioning procedures, important deviations from design specifications may exist and not be detected, reducing the system performance and increasing operational costs. This paper describes the measurements performed during commissioning of a HVAC system for a swimming pool delivered as ready by a contractor, showing important deviations that needed correction.

EECCAC is an EU funded project, where twelve participants (National Energy Agencies, Manufacturers, University laboratories and Electric utilities) from eight countries gathered to identify the most suitable measures to achieve market transformation in the direction of energy efficiency of central air conditioning systems in Europe. Its basement was the Eurovent manufacturers wish to develop a seasonal performance index for chillers in Europe, so as to compare their performances not only on full load, which is not representative of chiller average performances, but also on part load.

Climatization systems in operating theatres must provide a comfortable and healthy environment for the patients and the surgical team; in fact, there are a multitude of factors to be considering and analyzing for avoiding the evidence of many problems such as hypothermia, anaesthetical gases pollution, thermal discomfort. Comfort conditions can be achieved by controlling microclimatic parameters and air movement; an healthy environment can be achieved minimizing the risks of contamination.
This article summarizes the relevant literature about methods used for the

A model of Venetian blind associated simple or a double glazing is proposed in this article. Simplified modeling is based on a 2D approach (not taken into account of the effects edges) and separately treats the transmission of direct and the diffuse one. The evolutions of the form factors and the solar flows transmitted according to the degree of opening of the blind, of the slope of the plates, the position of the sun in the sky are taken into account and the models used are described.