...UNIVERSITÀ DEGLI STUDI DI PADOVA Facoltà di Ingegneria Dipartimento di Fisica Tecnica Tesi di laurea FEED-FORWARD CONTROL APPLIED TO THERMALLY ACTIVATED CONCRETE SLABS – A CASE STUDY Relatore: Correlatori: Prof. Ing. Roberto ZECCHIN Dott. Ing. Michele DE CARLI Dott. Ing. Dietrich SCHMIDT Laureando: Alessio PULLIERO Anno accademico 2003-2004 To my parents …. ABSTRACT The main purpose of this thesis is to investigate different control strategies for the heating and cooling system of the ZUB (Centre for Sustainable Building), situated in Kassel, Germany. It is an experimental office building, with a very detailed monitoring system for studying low-energy and low-exergy building technologies. The conditioning system is a TABS (Thermally Activated Building System), with water pipes embedded in the centre of a structural concrete slab, thus resulting in a ceiling radiant system. The high thermal capacity of the slab offers great opportunities to store heat, to dampen temperature fluctuations or to shift the peak-load; but, on the other hand, it implies a slow response of the system, which requires an accurate regulation strategy to front the variability of several factors, and to achieve the desired indoor temperature. A TRNSYS model of an office room has been developed, thus allowing to implement several regulations in the software and to test their performance. The main conclusion, carried out from the simulations, is that the implementation of a Feed-forward...
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...—————————————————————————— Bureau International des Poids et Mesures The International System of Units (SI) 8th edition 2006 —————————————————— Organisation Intergouvernementale de la Convention du Mètre 94 Note on the use of the English text To make its work more widely accessible, the International Committee for Weights and Measures has decided to publish an English version of its reports. Readers should note that the official record is always that of the French text. This must be used when an authoritative reference is required or when there is doubt about the interpretation of the text. Translations, complete or partial, of this brochure (or of its earlier editions) have been published in various languages, notably in Bulgarian, Chinese, Czech, English, German, Japanese, Korean, Portuguese, Romanian, and Spanish. The ISO and numerous countries have also published standards and guides to the use of SI units. 95 The BIPM and the Metre Convention The International Bureau of Weights and Measures (BIPM) was set up by the Metre Convention signed in Paris on 20 May 1875 by seventeen States during the final session of the diplomatic Conference of the Metre. This Convention was amended in 1921. The BIPM has its headquarters near Paris, in the grounds (43 520 m2) of the Pavillon de Breteuil (Parc de Saint-Cloud) placed at its disposal by the French Government; its upkeep is financed jointly by the Member States of the Metre Convention. The task of...
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