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Influence of the natural ventilation strategy on thermal and energy performance of mixed-mode office buildings

Grant number: 17/21137-5
Support type:Scholarships in Brazil - Master
Effective date (Start): January 01, 2018
Effective date (End): February 28, 2019
Field of knowledge:Applied Social Sciences - Architecture and Town Planning - Architecture and Urbanism Technology
Principal researcher:Leticia de Oliveira Neves
Grantee:Fernanda Alves Pereira
Home Institution: Faculdade de Engenharia Civil, Arquitetura e Urbanismo (FEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


Human activities have caused an excess of energy consumption. Buildings correspond to a considerable part of the electricity consumption, in special office buildings, which commonly have an air-conditioning system to provide thermal comfort. Many strategies have been studied to ensure energy efficiency for those buildings, such as the hybrid ventilation system, also known as mixed-mode system. A first literature review showed discrepancies between the expected and the real performance of mixed-mode buildings, in particular to Brazil's circumstances. This research intends to investigate the impacts of natural ventilation strategies on thermal and energy performance of mixed-mode office buildings, focusing on comparative analyses between single sided and cross natural ventilation. A field survey will be performed, in order to collect information about architectural design strategies of mixed-mode office buildings located in the city São Paulo, Brazil, which will be kept in a database. From the database, a detailed analytical study of five projects and two reference computer simulation models will be built - one provided with single sided ventilation and the other provided with cross ventilation. As a result, we intend to compare the thermal and energy performance of both ventilation strategies and discuss the thermal performance and energy consumption reduction potential for each analyzed strategy, considering industry restrictions. (AU)

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