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LI, Yuguo; DELSANTE, Angelo. How do wings affect buoyancy-driven ventilation buildings?. In: CONFERENCE ON PASSIVE AND LOW ENERGY ARCHITECTURE, 16., 1999, Brisbane. Anais... Brisbane: PLEA, 1999. p. 489-494.
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Número de Trabalhos: 5 (Com arquivo PDF disponíveis: 2)
Citações: 3
Índice h: 1  
Co-autores: Nenhum co-autor encontrado

Dados do autor na base InfoHab:
Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

Abstract

This paper examines theoretically the effects of wind on buoyancy-driven ventilation via some new analytical solutions recently developed by the authors. Three air change rate parameters are introduced to characterise respectively the effects of thermal buoyancy, the envelope heat loss and the wind force. The wind can either assist or oppose the airflow. For the first time, it has been found that for opposing winds, there are two stable ventilation flow rates for a given set of wind and thermal parameter, i.e. the natural ventilation flow exhibits hysteresis. Simple non-dimensional graphs are presented for calculating ventilation flow rates, and for sizing ventilation openings. Using the simple examples, this paper provides architects and engineers with some practical guidelines on how to use these non-dimensional graphs in their concept design.
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