1,720,980 research outputs found

    From the levy of resources into the refund of wealth to the community

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    The project proposes the redevelopment case of a disused limestone quarry located just a mile from the outskirts of Cagliari, capital city of Sardinia (Italy). The proposal for conversion of the site wants to reinterpret the place in terms of usefulness for the community, evaluating an alternative management of local resources. It identifies the Sardinian economy leading sectors and define the value chain: agrifood - Tourism - Environment - services. The project‘s objective is to provide answers and solutions to the factors affecting negatively the development of these sectors. Consequently it has been thought the establishment of a Quality Food Park to provide quality services to companies, to organize the access of local products to large distribution networks regionally, nationally and internationally and to implement policies of marketing and protection. This hypothesis has an enhanced sense if inserted in the costitution of a rural district in the territory of Cagliari, the most appropriate institutional platform for the development of the emerging post-Fordist economic paradigm. The quarry’s area would be the district’s organizing center, with the role of coordinating the relationship between the SMBs of agrifood and tourism, research centers and government agencies. From a formal point of view, the buildings in the Park revisit the Sardinian traditional earthen architecture, refer to the colors of limestone quarry and retrieve the profiles of Sardinian handicraft. The planimetry has been designed as a collage of fabrics that evoke the rich textile traditions of Sardinia

    The Building Dynamic Simulation Software ODESSE (Optimal DESign for Smart Energy): Analysis and Suggested Improvement

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    Dynamic simulation software packages allow us to describe a building-plant system over time and are very useful for estimating energy consumption in architectural projects. However, its use by professionals in the construction industry is currently rather limited because it is difficult to use. In fact many dynamic simulation software programs are not widely used because of their complicated Graphical User Interface (GUI). The software ODESSE (Optimal Design for Smart Energy), developed by ENEA (National Agency for New Technologies, Energy and Sustainable Economic Development) in Italian and English, has the great advantage of a simple and intuitive GUI. On the other hand, compared to other programs it is not yet entirely satisfactory from the technical and mathematical points of view. This article presents an analysis of ODESSE and some proposals for its improvement, in particular with regard to heat exchange algorithms between thermal zones of a building and to the program language. In order to achieve these objectives, a new simulation engine written in C++ has been created that is able to evaluate heat exchanges between zones, even when they are connected temporarily or permanently by doors or openings of some type. The tests performed demonstrate the stability of the multi-zone model developed, but the numerical method of resolution initially used needs to be changed
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