Baadgeir ( a Wind-catching Tower) or Havaakesh ( an Air-suction Tower)?: The Enigma of Ancient Ventilation in The Indigenous Architecture of Iran Dr. Hossein Manoochehri

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Published: July 8th 2014

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Baadgeir ( a Wind-catching Tower) or Havaakesh ( an Air-suction Tower)?: The Enigma of Ancient Ventilation in The Indigenous Architecture of Iran  by  Dr. Hossein Manoochehri

Baadgeir ( a Wind-catching Tower) or Havaakesh ( an Air-suction Tower)?: The Enigma of Ancient Ventilation in The Indigenous Architecture of Iran by Dr. Hossein Manoochehri
July 8th 2014 | Kindle Edition | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | | ISBN: | 5.53 Mb

The compound, Farsi noun of Baadgeir, consists of two words: Baad ( which means Wind) and Geir ( which means Catch or Get) and the noun of baadgeir is translated into English as a Wind-catching Tower or as a Wind-catcher. Structurally, a baadgeir isMoreThe compound, Farsi noun of Baadgeir, consists of two words: Baad ( which means Wind) and Geir ( which means Catch or Get) and the noun of baadgeir is translated into English as a Wind-catching Tower or as a Wind-catcher.

Structurally, a baadgeir is a chimney-like tower but functionally it directs the outside air into the building. For centuries, at the time that electricity, fan, and air condition had not yet been invented, baadgeirs were being built by the indigenous builder at the traditional houses as well as at the ground water reservoirs ( aab anbaars) in Iran for ventilation. But the true function of a baadgeir, if built correctly, is to create a cool draft based on the variation in the temperatures of the air inside and outside of the tower.

As such, a baadgeir can function without theexistence of outside wind and it should have been named as an air-suction tower in the first place.To be specific, the air inside of a baadgeir always becomes cooler than outside air in the summers.By becoming cooler, the air inside of the baadgeir condenses and becomes heavier than the outsideair. The heavy air inside of the tower moves down to the base of the baadgeir and creates a vacuum at the top part of the baadgeir. Such a vacuum sucks the outside air into the canal of the baageir. This process repeats every a few minutes.

This ancient technology was very effective to convert the warm outside air in the summers into a relatively cooler air inside of a building. It can be considered as an advance innovation and technology in its time.By the introduction of fans and air conditioning as a result of modernization, the baadgeirs are no longer built in Iran. The existing baadgeirs, however, are registered and protected by the Cultural Heritage Organization of Iran as one of the most attractive, indigenous architectural feature in Iranwhose function is still a matter of dispute among visitors.The present work is the first analytical work on baadgeris of Iran in English.

It seeks to explain and to analyze the baadgeirs in the indigenous architecture of Iran and to put on record and on view, by illustrations, the major, survived baadgeirs in three historic provinces of Isfahaan, Kermaan, and Yazd,.



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