Solar chimney for natural ventilation induction in buildings

• Grant number: 09/02045-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Effective date (Start): September 01, 2009
• Effective date (End): February 29, 2012
• Field of knowledge: Applied Social Sciences - Architecture and Town Planning - Architecture and Urbanism Technology
• Principal Investigator: Maurício Roriz
• Grantee: Leticia de Oliveira Neves
• Host Institution: Faculdade de Engenharia Civil, Arquitetura e Urbanismo (FEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The need to reduce energy consumption of buildings is contributing to increase the demand for passive conditioning strategies, instead of the use of mechanical systems. One of the main strategies of passive cooling is natural ventilation, which can occur by the action of direct wind (cross ventilation) and by temperature and pressure differences between openings (stack effect). The last alternative is more efficient in situations where there is no external wind, often found in the urban fabric, for instance, where obstacles can block the wind. The main objective of this research is to evaluate the potential application of solar chimneys to promote natural ventilation in low rise buildings located in different Brazilian bioclimatic zones. We will build two models and measure the climatic data. One consists in a conventional vertical chimney and the other a solar chimney of varying tilt. Data obtained in experimental measurements will be compared with computer simulations using the softwares Ecotect and EnergyPlus. The computer model will be checked and simulated for representative cities of the eight Brazilian bioclimatic zones and the thermal comfort potential provided by the solar chimney will be analyzed for typical climates of Brazil.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

NEVES, LETICIA DE OLIVEIRA; DA SILVA, FERNANDO MARQUES. Simulation and measurements of wind interference on a solar chimney performance. JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, v. 179, p. 135-145, AUG 2018. (09/02045-6)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

NEVES, Leticia de Oliveira. Solar chimney for natural ventilation induction in buildings. 2012. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Civil, Arquitetura e Urbanismo Campinas, SP.