Caratterizzazione sperimentale di un collettore solare termico

Abstract

Consulta en la Biblioteca ETSI Industriales (Riunet)

[ita] The actual based energetic model in the energy fossil is not sustainable in the time and in the space. The future solicits a deep transformation in the formalities of production and consumption of the energy that must have fed for technologies that produce energy using the sun, the wind, the tides. Renewable energies represent therefore the horizon for the realization of a sustainable economic and social system for the present and future generations. The solar energy, in matter the thermal one, represents a free future of pollution and the dependence of the rising fossils, and its applications can directly be usable in the domestic circle. The search of new technologies advances, and currently a lot of they are already in phase of test or they begin to be commercialized. As it regards the technological aspect, the elements that enter consideration are, of a part the energetic efficiency and, of the other, the ground floor environmental impact. For the first aspect the search of new technologies advances, and currently norms of test exist for calculating the efficiency as the Norm European EN 12975:2006 for solar collectors. The thermal solar collectors mostly employees to convert the solar radiation in heat are the collectors to plain typology and evacuated pipes. In the conventional applications they are used for the production of sanitary warm water or domestic heating in combination with systems to low temperature. After a brief introduction on the typologies of plant and existing solar panels, the tests of thermal efficiency of these solar devices are faced and I discussed in this thesis. You will also analyze as they suffer from influence the errors of measure on the calculation of the output. But first there will be an introduction to renewable energy, particularly solar energy, and the current status of solar thermal energy. The tests are realized according to the specifications of the Norm of Test of Solar Collectors EN 12975-1:2006 ¿Thermal solar systems and components. Solar collectors. General requirements¿ and EN 12975-2:2006 ¿Thermal solar systems and components. Solar collectors. Test Methods.¿ For the test of thermal efficiency the method of test will follow he under conditions of is static in environment described in the paragraph 6.1 of the same norm. For the calculation of the efficiency of the collector the method will follow him described in the paragraph 6.1.4.8 of the norm before quoted. This approach allows an ampler comparison of the real performances of the considered solar collectors. In this thesis there will be studied the thermal efficiency of the solar commercial collector CS25R or CP25VV.