Eduardo Cademartori
Energetic efficiency in the brazilian built environment : retrofitting strategies for a hotel in Goiania.
Rel. Guglielmina Mutani, Jan Hensen, Paolo Oliaro, Daniel Costola, Claudia Amorim. Politecnico di Torino, Corso di laurea specialistica in Architettura, 2011
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Abstract: |
Currently the world is experiencing an urbanization at an unprecedented rate. Urban centers, which are definitely thè predominant morphologic unit of thè contemporary society, are essentially collective. As citizens we have no choice but to learn how to live collectively, solving and avoiding thè main problems of our cities, therefore leading them into a sustainable behavior. Living together in great cities couid be thè origin for many environmental problems, but this agglomeration is also a fundamental driver of innovation in our time. Due to technology and scientific development, settled indeed in thè urban environment, anything we find inconvenient is supposed to not endure. Eliminating unpieasant conditions seems to be one of thè main motivations to innovation. In order to find remarkable ideas for thè future, it is necessary to identify thè significance of these inconvenient things. Probably thè foreseeable future of our cities is to support us proactively in our day lives. Energy remains a fundamental requirement of today's society. It is thè basis of almost everything we do today, and there is no doubt thè way its production and distribution is settled nowadays must be changed. Energy's broad concept represents thè feeding of ali production organisms in thè world, from food moving individuai to oil, gas or naturai coal, which move cities and industriai fields. Day after day this word and its strong meaning have became more elaborated: politic and environmental dimensions have been increasingly taken into account in energy's consumption and production, due to thè global changes' perception and analysis in thè last decades
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Relators: | Guglielmina Mutani, Jan Hensen, Paolo Oliaro, Daniel Costola, Claudia Amorim |
Publication type: | Printed |
Subjects: | A Architettura > AO Design |
Corso di laurea: | Corso di laurea specialistica in Architettura |
Classe di laurea: | UNSPECIFIED |
Aziende collaboratrici: | Politecnico di Milano - Dipartimento di Scienza e Tecnologie dell' Ambiente costruito (BEST), Unit Building Physics & Systems - Eindhoven University of Technology - Nederland, Unit Building Physics & Systems - Eindhoven University of Technology - Nederland, Departamento de Tecnologia em Arquitetura - Universidade de Brasilia - República Federativa do Brasil |
URI: | http://webthesis.biblio.polito.it/id/eprint/2177 |
Chapters: | How are people currently dealing with energy in the built environment? I Opening remarks: broad research question I.1. Energy in cities I.2. Energy in buildings Why and how is energetic efficiency in Braziiian buildings being supported? II Context presentation and problem's definition II.1. The Braziiian energetic crisis of 2001 II.2. Braziiian energy policies for thè built environment II.3. Energy consumption in Braziiian buildings Energy consumption in residences Energy consumption in commerciai and public buildings How to implement energetic efficiency in Braziiian buildings? Design methodology and strategies III Environmental integrated design and passive strategies III.1. Bioclimaticzoning III.2. Passive cooling Naturai ventilation Thermal mass for cooling Evaporative cooling Green roof III.3. Passive heating Implementation and orientation Passive solar heating T hermal mass for heating III.4. Daylighting and envelope's shading The Morphological Diagram for Braziiian buildings IV Renewable energy generation in buildings IV.1. Solar energy Solar thermal Photovoltaic cells Solar cooling IV.2. Wind energy Domestic eolie turbines IV.3. Earth energy Geothermal for air cooling IV.4. Organic energy Biomass systems Which are thè quantitative outeomes of this methodology? Case study: energy efficient retrofitting strategies for a hotel in Goianla V Context presentation V.l. Hotels and Braziiian recent great events V.2. Goiània: city, weather and architecture V.3. Establishing energy consumption reference ranges VI Buiiding's status quo VI.l.Business hotel in Goiània: case study's building VI.2.Simulator calibration and quality assurance (BESTEST) VI.3.Modeling principles VI.4.Constructions' specifications Materials' properties External walls Glazed surfaces Fiat roofs Internai floors/ceilings Ground-contact floor VI.5. Uses profiles Ground floor zone Terrace zone Rooms zone VI.6. Simulation assumptions and sources of uncertainty Buiiding's location Opaque and glazed closures stratigraphies occurrence Air conditioning systems Users behavior Internai spaces division, shafts and vertical circulation Intern thermal mass Underground floors Naturai ventilation Assumed references to end uses percentages Congruence between simulation results and real consumption VI.7. Simulation results and discussion Variables involved on energy consumption Overall daily building behavior Cooling and heating sensible loads Contrasting air conditioner simulated demand with real consumption VI.8. Building's Energy Label - PROCEL Edifica VII Retrofitting scenarios for energetic efficiency promotion Vll.1. Reduction on buiiding's energy demand Scenario 1 - Overhangs implementation for shading Scenario 2 - Louvers' frames implementation Scenario 3 - Air changes and setpoints redefinition Scenario 4 - H&C centralized System with high efficiency Scenario 5 - Luminous efficacy increase on lighting System Scenario 6 - Facades' absorptances lowering and solar factor increase Scenario 7 - Roof remodeling for buiiding's envelope Label LevelA VII.2. System sizing for renewable energy generation Scenario 8 - Solar thermal collectors for domestic hot water Scenario 9 - Photovoltaic cells for electricity generation VII.3. Final Scenario - Maximum energetic efficiency Associating previous retrofitting strategies VII.4. Resumed scenarios and discussion VIII Conclusions Bibliography |
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