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Impact assessment of natural ventilation on thermal comfort levels in sustainable residential buildings

Tsirintoulaki Elli

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URIhttp://purl.tuc.gr/dl/dias/DF7A1535-6643-4282-B2AD-38A4AEDEA084-
Identifierhttps://doi.org/10.26233/heallink.tuc.68895-
Languageen-
Extent100 pagesen
TitleImpact assessment of natural ventilation on thermal comfort levels in sustainable residential buildingsen
TitleΑξιολόγηση των επιπτώσεων του φυσικού αερισμού στα επίπεδα θερμικής άνεσης σε βιώσιμα κτίρια κατοικιώνel
CreatorTsirintoulaki Ellien
CreatorΤσιριντουλακη Ελληel
Contributor [Thesis Supervisor]Kolokotsa Dionysiaen
Contributor [Thesis Supervisor]Κολοκοτσα Διονυσιαel
Contributor [Committee Member]Tsoutsos Theocharisen
Contributor [Committee Member]Τσουτσος Θεοχαρηςel
Contributor [Committee Member]Papamanolis Nikolaosen
Contributor [Committee Member]Παπαμανωλης Νικολαοςel
PublisherΠολυτεχνείο Κρήτηςel
PublisherTechnical University of Creteen
Academic UnitTechnical University of Crete::School of Environmental Engineeringen
Academic UnitΠολυτεχνείο Κρήτης::Σχολή Μηχανικών Περιβάλλοντοςel
DescriptionΜεταπτυχιακή Διατριβή που υποβλήθηκε στη σχολή ΜΗΠΕΡ του Πολυτεχνείου Κρήτης για την πλήρωση προϋποθέσεων λήψης του Μεταπτυχιακού Διπλώματος Ειδίκευσηςen
Content SummaryIn the present thesis the impact of natural cross-ventilation on thermal comfort levels in sustainable residential buildings is evaluated. A sustainable dwelling is designed in Crete and is simulated in OpenStudio to assess its energy consumption. For the study of the indoor airflow pattern and the thermal comfort levels the Blender (with CFD plug-in) and the Autodesk CFD are chosen. Various scenarios of different combinations of open windows and doors in the ground floor, the first floor and between the floors are tested in Blender to determine the final scenarios with the best possible airflow movement. Three scenarios with open windows and doors in the ground floor and six (6) between the floors (9 total scenarios) are chosen to be the final scenarios where the impact assessment of natural ventilation on thermal comfort levels is performed. For the study of thermal comfort levels, using the Predicted Mean Vote (PMV) index, the Autodesk CFD software is used for the Computational Fluid Dynamics (CFD) simulations with the 3D steady Reynolds-averaged Navier-Stokes (RANS) approach and the Shear Stress Transport (SST) k-ω turbulence model. The Scenarios are tested for a typical summer day for four different hours and environmental conditions. The designed building is treated as a stand alone in all the simulations and it is not an existing construction. From the analysis of the results we observe that natural ventilation is an effective way to achieve indoor thermal comfort. In many Scenarios the high values of PMV from the Base Scenario (no windows or doors open) are decreased and in a few cases the values fall into the cold zone of comfort. The layout of the floors also affects the airflow movement in addition with the openings and the environmental conditions and can be used accordingly. According to the author’s knowledge in the field of investigating natural ventilation via numerical approach simulation the present study is an original attempt to examine a more elaborate building architectural design and is also concluded that the followed methodology can be applied.en
Type of ItemΜεταπτυχιακή Διατριβήel
Type of ItemMaster Thesisen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2017-07-17-
Date of Publication2017-
SubjectNatural ventilationen
SubjectIndoor thermal comforten
SubjectCFD simulationen
Bibliographic CitationElli Tsirintoulaki, "Impact assessment of natural ventilation on thermal comfort levels in sustainable residential buildings", Master Thesis, School of Environmental Engineering, Technical University of Crete, Chania, Greece, 2017en
Bibliographic CitationΈλλη Τσιριντουλάκη, "Αξιολόγηση των επιπτώσεων του φυσικού αερισμού στα επίπεδα θερμικής άνεσης σε βιώσιμα κτίρια κατοικιών", Μεταπτυχιακή Διατριβή, Σχολή Μηχανικών Περιβάλλοντος, Πολυτεχνείο Κρήτης, Χανιά, Ελλάς, 2017el

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