Showing 3 results for Cold Climate
Dr. Mohammadjavad Mahdavinejad, Soha Matoor, Amene Doroodgar,
Volume 21, Issue 2 (12-2011)
Abstract
Mosque architecture is considered as a potent visual symbol of the Islamic architects’ design ability. Prayer-hall as the
manifestation of equality between the believers and the unity of architectural space has challenged such an ability throughout the
history. This study, considering the characteristics of light-openings in the domes of Iranian mosques’ Prayer-hall, aims to
investigate these domes’ possible relationship with the climatic features of each mosque. To this end, eighteen case-studies
according to the research analytic approach are studied to determine: 1. the relationship between the mosques construction period
(Iranian architecture styles) and its light-openings number on the one hand and its climatic features on the other hand, 2. The
relationship between the light-openings’ location and the climatic features of each mosque, 3. The relationship between the lightopenings’
number and the climatic feature of each mosque and finally, 4. The relationship between the prayer-hall’s
height and the number of light openings of each mosque on the one hand and its climatic feature on the other hand. The study shows
that Iranian architects have given considerable priority to the natural ventilation function of the light-openings, So, what used to
be considered as the domes' main function, allowing the light to the interior space, is considered as their secondary function.
M. Farhadian, S. Razzaghi Asl, H. Ghamari,
Volume 29, Issue 2 (12-2019)
Abstract
The green hydroponics walls are among new kinds of building facades, which receive more attention from architects lately. In addition to the positive effect these walls have in maintaining humidity in arid regions, they also have positive thermal performance in both cold and hot weather conditions. Therefore, they are in the center of designers’ focus for public spaces such as schools. In terms of soil-free cultures, these walls are of three general types: wide, horizontal, and vertical. The use of different types of green walls in each zone allows for different thermal performance. This paper aims to investigate the thermal performance of hydroponic green walls in different facades of green school in term of thermal performance. Moreover, the present study only addresses green schools in cold climates. We conducted a simulation by using Energy Plus software with three different types of hydroponic green walls in Shahrekord city of Iran, which were monitored in 20 years" from2000 until2019".The thermal performance of each type was analyzed and compared with other samples. Finally, the best kind of green- hydroponics wall with the best thermal performance was identified for each wall.
Hassan Akbari, Fatemeh Sadat Hosseini Nezhad,
Volume 33, Issue 1 (3-2023)
Abstract
The physical-geometric characteristics of buildings have a very important role in the regulation of microclimate conditions and the thermal situation of interior and exterior spaces of buildings. This research aims to investigate the amount of received direct radiation energy of vertical surfaces in buildings and determine the appropriate form, aspect ratio, and orientation of buildings in the cities of Ardabil, Tabriz, Sanandaj, and Hamedan in the Northwest of Iran with cold climate. For this purpose, six polygonal forms (with the same floor area and height) including square, rectangle, hexagon, octagon, hexadecagon (16-sided), and triacontadigon (32-sided) were selected to be examined. Afterward, the specified optimal form(rectangle) was surveyed with the aspect ratios of 1:1.2, 1:1.4, 1:1.6, 1:1.8, 1:2 and in the orientations of 180º, 165º, 150º, 135º, 120º, 105º SE and SW. Using the “Law of Cosines” computational method, the amount of received direct energy on vertical surfaces has been calculated and processed, for different months and during the cold and hot periods of the year. The results of the research show that the appropriate form of the buildings in the studied cities is a rectangle with an east-west orientation. The most suitable aspect ratio for the rectangular form with east-west orientation in the cities of Ardabil, Tabriz, Sanandaj, and Hamedan is 1:1.2. The appropriate orientation for the determined aspect ratio in the studied cities is 165° Southeast.
