Tose Sazan Pahne Kiyansea (TSPK) Company, Incubator Center, University of Zabol, Zabol, Iran.
Department of Mechanical Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran.
Sci Rep. 2022 Oct 29;12(1):18240. doi: 10.1038/s41598-022-23027-w.
Over centuries different elements have been developed in architectures for ensuring adequate natural ventilation in residential units. This study assesses the different components of an ancient windmill in Sistan, Iran, on the structure's indoor air quality (IAQ) enhancement. Several climatic scenarios have been defined by the wind analysis of Sistan meteorological data and analyzed by CFD. The site measurements confirm the accuracy of the simulation results. In the windmill, two deflectors facing the prevailing wind are the significant elements which, in addition to directing wind toward the entrance, could form vortices near the east and west openings leading to suction ventilation. Alteration of the wind speed and angle from 10 to 15 m/s and 30° to 17° would increase the air change per hour (ACH) by 150% and 110%, respectively. Meanwhile, the ACHs were higher than the ASHRAE desired level (ACH > 0.35).
几个世纪以来,建筑领域一直在发展不同的元素,以确保住宅单元有足够的自然通风。本研究评估了伊朗锡斯坦一座古老风车的不同组成部分,以提高其室内空气质量(IAQ)。通过对锡斯坦气象数据的风分析定义了几种气候情景,并通过 CFD 进行了分析。现场测量结果证实了模拟结果的准确性。在风车中,两个面向盛行风的挡板是重要的组成部分,它们除了将风导向入口外,还可以在东西开口附近形成涡流,从而实现抽吸通风。风速和风向从 10 到 15 米/秒和 30 到 17 度的变化将使每小时空气更换率(ACH)分别增加 150%和 110%。同时,ACH 高于美国采暖、制冷与空调工程师学会(ASHRAE)的期望水平(ACH>0.35)。