خلاصة:
As an example of extreme hot humid climate, the southern marginal rim of Iran is a perfect candidate for studying climatic patterns. Attention to climatic components in housing design process within this area is therefore essential. Benefitting from the airflow and avoiding heat and radiation are among the most effective approaches towards moderating heat conditions in hot and humid areas. Vernacular houses are principally built to adapt to the climatic needs. Bandar-e Lengeh in southern rim of Iran has vernacular houses with unique patterns to make use of the airflow. With the aid of the Design Builder software application, this article examines heat conditions in such houses in accordance with local wind patterns and airflow in the climatic structure of the houses. It also tries to investigate the extent to wich such airflow effective can be effective in moderating indoor heat conditions of the climatic conditions in Bandar-e Lengeh houses. The article has a practical purpose, which is being followed through application of graphical and simulation packages using Design Builder software version 4.2.0.045 and the ASHRAE55 thermal comfort model. The climate statistics data are prepared by Meteorem 7 software, using weather data from Meteorological Organization of Iran. Conformance of the obtained simulation results show that local wind-flow currents in Bandar-e Lengeh combined with unique climatic patterns of the local houses can help moderation of indoor thermal conditions and provide the best ambient status, regarding air currents temperature and relative humidity in certain hours of the day.
ملخص الجهاز:
Impact of Airflow on Moderating Thermal Conditions in Vernacular Houses; Case Study: Bandar-e Lengeh Houses in Hot and Humid Climate of Iran Niloufar Nikghadam1* and Seyed Majid Mofidi Shemirani2 1 Assistant Professor of Architecture, Faculty of Art and Architecture, South Tehran Branch, Islamic Azad University, Tehran, Iran.
Conformance of the obtained simulation results show that local wind-flow currents in Bandar-e Lengeh combined with unique climatic patterns of the local houses can help moderation of indoor thermal conditions and provide the best ambient status, regarding air currents temperature and relative humidity in certain hours of the day.
The paper intends to study local wind patterns, to assess their impact on the native housing structure and to investigate the extent to which such airflows have been effective in moderating indoor heat conditions of the climate in Bandar-e Lengeh houses, and to see what their optimal influence conditions are.
In that, two examples of the Bandar-e Lengeh native houses were simulated in accordance with climatic samples of the houses and related available climatic data in that area, while open or closed state of their windows at different times of the selected months were examined and planned for, based on the local wind pattern in those months.
Simulation of an example of each of the two introvert and extrovert houses in the Design Builder Software Application revealed that using natural ventilation by opening windows and vents, have been worked out to take advantage of the region’s desirable winds in this climatic patterns.