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Accueil du site → Doctorat → Royaume-Uni → 2004 → The evaluation of integrating photovoltaics into the buildings of southern Algeria

University of Sheffield (2004)

The evaluation of integrating photovoltaics into the buildings of southern Algeria

Bouzid, Amir

Titre : The evaluation of integrating photovoltaics into the buildings of southern Algeria

Auteur : Bouzid, Amir

Université de soutenance : University of Sheffield

Grade : Doctor of Philosophy (PhD) 2004

This study was concerned with the central argument that renewable energies can be used as a practical alternative to fossil fuels in countries where these resources are becoming scarce. The main focus is on solar energy and the use of photovoltaics in remote desert regions. In order to make this technology effective in the long term, the building fabric of local dwelling types can be used to accommodate these innovative devices. The aim of the present study was to investigate whether building integrated photovoltaics are appropriate and applicable in the particular region of southern Algeria. Data was compiled on the climate of southern Algeria to identify a region for investigation and a ’solar map’ was constructed showing the optimum orientations of a solar collector plane. An architectural review of two building types, traditional and modern, was carried out and this was further used to identify suitable areas for photovoltaic integration. Domestic electricity needs for both building types, including the thermal load and electricity consumption of appliances were estimated. Current photovoltaic system design tools were critically analysed and photovoltaic integration systems were reviewed. The purpose of the last two steps was to enable choices to be made about the design a photovoltaic system in each building type. The results indicated that the typical modern building had a larger potential for photovoltaic integration, (using the walls and the roof), than the traditional building type. The findings showed that the roof-mounted option in the modern building was more effective in yielding solar electrical energy production than the wall mounted. Also, the wall mounted photovoltaic arrays on the south elevation yielded more energy than the east and west elevations in the modern building model. Concerning the photovoltaic roof mounted system, this was effective when tilted at a 20° angle and oriented in order of preference : south, southeast, southwest, east and west. The worst azimuths were north, northwest and northeast respectively. This study has shown that the desert region of southern Algeria is a suitable location for the integration of photovoltaic in buildings. While the modern building fabric had more potential for photovoltaic integration, a compromise should be reached where the continuity and sustainability of the traditional dwelling is combined with the technology of this renewable source of energy.

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