Showing 3 results for Orosi
M. Haghshenas, M. R. Bemanian, Z. Ghiabaklou,
Volume 25, Issue 2 (12-2015)
Abstract
Traditional building technologies have much to teach us about how to design regionally appropriate structures. The Orosi is one of these useful technologies, which has been used for many centuries in order to control the harsh sunlight in Iran. This architectural element was rather important because the intensive solar radiation could easily damage valuable carpets used in most spaces in Persian buildings. The main question of this research was how much could the traditional Orosi windows reduce the harmful spectrums of sunlight? In order to investigate this effect, a combination of field study, laboratory measurements, and case study research method was applied. Nine Persian traditional Orosi windows were chosen as case studies and the windows’ geometric lattice (Gereh–Chini) and glazing color combinations were drawn and plotted. The experiment was carried out for carpeted and non–carpeted spaces. In order to measure the light transmission of the sample tinted glazing from the Orosi windows, a T80+ spectrophotometer was used. After calculating CIE and skin damage factors and visible transmittance for each piece of glass, an area weighting was used to calculate these factors for the entire Orosi. The results show a significant difference between CIE damage factors of the Orosis in carpeted and non–carpeted spaces where the carpeted spaces had the least amount of CIE damage factor.
Sahar Rahimifar, Abbas Tarkashvand, Haniyeh Sanaieian,
Volume 33, Issue 2 (4-2023)
Abstract
In recent years, optimizing the energy consumption of buildings has become one of the important environmental and economic goals in sustainable architecture and urban planning. A group of factors affecting the energy consumption of buildings is their physical characteristics and form. In this regard, in the present research, the effect of volumetric porosity in high-rise buildings on their energy consumption has been investigated. The purpose of this research is to explain the correlation between the volumetric porosity of a building, as an independent variable, and its cooling and heating load, as a dependent variable, in a high-rise residential complex in Tehran. In this regard, first, a modular-generative model has been created in the Grasshopper plugin of Rhino software, which can create a porosity of 0 to 50% parametrically. Then, the cooling and heating load of each of the produced models in the city of Tehran and on the June 21 (summer solstice) and December 21 (winter solstice) were calculated using the Honeybee plugin, with standard settings. The data obtained from the simulation were entered into the SPSS software environment and the correlation test of the percentage of volume porosity and energy consumption was performed on the two aforementioned dates in Tehran. In order to validate the research method, this process was performed in 3 other climatic zones of Iran and the findings were compared with other studies in this field. The results of this research showed that the increase in porosity, assuming the number of modules is kept constant (the total volume of the building remains constant) and the site coverage ratio - as is common and inevitable in high-rise buildings - have a significant positive correlation with increased energy consumption in high-rise residential buildings in Tehran.
Reyhaneh Raisi, Roza Vakilinezhad, Matin Khayyam Manesh,
Volume 34, Issue 1 (1-2024)
Abstract
The incorporation of various openings that permit daylight into interior spaces significantly influences thermal comfort. In the central region of Iran, Orosi windows are a prevalent architectural feature in courtyard buildings. These latticed door-windows are embellished with colorful glass pieces arranged in geometric patterns. This study aims to evaluate the impact of glass color in Orosi windows on their thermal and daylight performance. The primary objective is to determine the thermal comfort and daylight performance of a typical Qajarian Orosi with different glass colors (colorful, red, blue, yellow, green, colorless) and to identify the optimal glass color for Orosi windows. The findings reveal that the glass color of Orosi windows not only affects thermal comfort but also has a significant impact on daylight performance. Yellow glass offers the most favorable thermal conditions, irrespective of the season. In terms of daylight performance, all glass colors perform adequately; however, the Orosi with yellow glass achieves the highest values for spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE). The next preferred options, in descending order, are colorless, green, and blue glass. Considering both daylight and thermal performance, it is recommended to use Orosi windows with yellow glass due to the 22% improvement in annual thermal comfort and satisfactory daylight performance.
