Local control of ventilation in large buildings is considered to be a main issue in energy savings regarding the huge energy losses that are usually induced by such large volumes. An efficient ventilation system and the development of local control ventilation strategies could prevent large buildings from having an unsuited or overvalued ventilation and reduce significantly the energy consumption.

In France, for historical and demographic reasons, many educational buildings must be retrofitted in the next years.However, various studies showed that measurements of energy savings, and improvement of comfort, are rarely applied in the retrofitting operations, because of a lack of knowledge of the decision makers concerning the potential improvements.The program REDUCE of International Energy Agency - ECBCS Annex 36, and studies aiming at promoting the high environmental quality of the educational buildings in France, showed the existence of a potential improvement of the energy efficie

This article presents the study done on an individual house located in Macon, France. From the model of a house called ‘reference house’, in conformity with French thermal regulation, different parameters concerning the walls, the screenings or the ventil

The study of a hotel to be built under the mild climate of Madeira Island, Portugal, is presented. The program DOE-2.1E was used for the thermal load simulation, using as climatic input a Typical Year file constructed for this case. The simulation for the base building showed low heating loads and high cooling loads, of which a very important fraction derives from solar gains.

This paper deals with the relevance of Computational Fluids Dynamics (CFD) results confronted to measurements carried out in real environment. Experimental tests have been undertaken in a room and in a kitchen of an experimental house. Although the wall surface temperatures and the air intake temperature have not been imposed, the air change rates have been controlled during the measurements. Moreover, since measurements have been
carried out in a real environment, air leakage has occurred at the walls.

This paper provides experimental results derived through field testing of a partial load solar energized cooling system in Madrid during the summer period of 2003. Solar hot water was delivered by means of a 50 m2 array of flat-plate collectors to drive a single-effect (LiBr/H2O) absorption chiller of 35 kW nominal cooling capacity. Thermal energy was stored in a 2 m3 stratified hot water storage tank during hours of bright sunshine.

Enero del 2006 es la fecha para la entrada en vigor de la Directiva europea de eficiencia energética en los edificios fecha que puede aplazarse hasta el 2009 para algunos de sus requerimientos bajo ciertas condiciones. La situación española para la transp

Design requires the knowledge of what is to be achieved and how is wanted to be achieved. The final definition of a product is usually the result of a cycle of definitions and redefinitions, depending of an interactive and iterative process where many participants take part. Axiomatic Design is one of the latest design theories, which allows a structured decision process. According to Axiomatic Design, two axioms govern good design: the Independence and the Information Axioms.

La tendencia en las nuevas normativas energéticas de todos los países pasa por transformar requerimientos prescriptivos en prestacionales, es decir, en lugar de limitar el comportamiento de cada elemento o del edificio en su conjunto, con una serie de val