Evaluating the efficiency of YAZDI wind tower, an experimental study

This paper is an attempt to evaluate ventilation performance in yazdi wind tower with aid of an experimental study. wind towers has been known as one of the most effective climatic elements in iranian traditional architecture and performance of wind tower is air conditioning and air suction, cooling nutrition and preventing of putrefaction of water in water storages. iranian wind towers have been categorized in three main types, ardakani, kermani and yazdi, and this paper deals with yazdi wind tower. first, an analytical model defined and then case studies modeled in vasari software environment, furthermore theoretical modeling presented to assess the accuracy of measurement procedures and the uncertainty of experimental modeling. modeling and simulation methods and logical reasoning have been applied to the article, and study of library resources was another part of research. results indicated that yazdi wind tower with four openings has a positive air flow rate in hot seasons (air flow rate=+0.018) also air flow rate in cold seasons is positive too (air flow rate=+0.012). therefore yazdi wind tower regarding to its performance in the whole year can be categorized as an efficient device in its climate, also with the aids of some simple devices, natural ventilation performance can be increased.