Evaluation& Analysis of Themal comfort in Central Courtyards in hot-arid climate of IRAN | sahar taheri

Abstract

The Process of Climate Change in the long run can reduce the presence of people in open spaces, especially in hot& arid climates. Historic buildings often provide a courtyard or porch, which play a strategic role to control the outdoor microclimate. This study seeks to assess the level of adaptation of he central courtyard of traditional houses in Shiraz to the climatic conditions in the city. The present study has tried to accurately study the thermal comfort in the central courtyard by measuring the effect of components such as: Dimention, Proportion, pond, Trees, and green spaces. In order to determine the priority of influencing the above components, some traditional houses in Shiraz have been selected and using ENVI-met4, the level of thermal comfort has been measured based on the PMV index.

1. Introduction

During the last decade, interest in assessment of thermal comfort has increased because of climate changes and increased heat stress in cities [1].Air temperature, humidity, wind speed and rate sunlight are essential factors in defining comfort on a microclimatic scale[2].This article tend to research the impact of environmental components on thermal comfort in central courtyards.By using pmv index we compare some courtyards according to their shape and portions. And as a conclusion we propose some idea for cooling the air in courtyard.