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      • Open Access Article

        1 - Design of smart shading for an office building to control the entry of direct sunlight based on cooling load reduction by modeling of Iranian-Islamic geometric
        mehdi sheikhi فاطمه مهدیزاده سراج
        The utilization of buildings contributes to approximately one-third of global energy consumption and a similar share of greenhouse gas emissions. In Iran, the buildings' energy consumption is more than 40% of the total energy consumption. Meanwhile, the environment, sav More
        The utilization of buildings contributes to approximately one-third of global energy consumption and a similar share of greenhouse gas emissions. In Iran, the buildings' energy consumption is more than 40% of the total energy consumption. Meanwhile, the environment, saving on fossil fuels, and sustainable development have become very important and common topics in the international arena. So, the building shell plays an important role as the outermost layer of the building, which is mostly connected to environmental factors. This article designs and evaluates the efficiency of the smart shading that prevents unwanted penetration of sunlight in the warm months of the year and allows light to enter the space in the cold months of the year. With the glance aesthetic view, Iranian geometry has been used to create these shading to achieve this beauty. Computer simulation and analysis and library resources are the methods used in this study. In this regard, an analysis sample with dimensions of 4 meters wide, 6 meters long, and 3.2 meters high as a part of office space for the shading were designed. And its effect on indoor lighting in the warm season was analyzed in VELUX Daylight Visualizer software. These shadings move and change direction according to the rotation of the sun. The analysis shows that in hot weather of the year, these shadings can reduce the brightness of the interior space by one-third and reduce the cooling load and keep the light intensity (lux) close to the standard of office space (300 lux). Furthermore, in the cold season of the year, the opening of these shadings is allowed light to enter. Manuscript profile
      • Open Access Article

        2 - Study the effect of the Second Facade and its geometry on daylight control in office spaces (modeling and Daylight analysis by Diva software)
        Navid Jalaeian Ghane Sajad Aeini
        In addition to optimizing energy consumption, daylight is efficient in the health quality of indoor spaces, the interaction of architecture with social behaviors, and the health of individuals in the space. In addition to increasing the quality of natural light in the s More
        In addition to optimizing energy consumption, daylight is efficient in the health quality of indoor spaces, the interaction of architecture with social behaviors, and the health of individuals in the space. In addition to increasing the quality of natural light in the space, benefiting a daylight control system significantly reduces the building's electrical energy consumption. The study aims to deals with the amount and the way the quality of the openings of the building's windows affects the quality of the received daylight. Therefore, it investigates the effect of the opening rate of the designed Iranian knot on the efficiency of natural lighting in the office space based on international standards, applying daylight simulation software and annual analyzes consistent with the weather information of Mashhad, through the occupation hours of the space. Firstly, However, the paper studies the basic concepts of the research; secondly, analytical tools are employed and analyzed how the quality of openings affects the quality of receiving light. Lastly, the result is formulated with logical reasoning based on analytical tools. Moreover, the results indicate that the opening coefficient holds a great effect on the distribution of natural light in different directions, particularly on the south front. Furthermore, the importance of daylight in optimizing the amount of energy consumption, the health quality of indoor spaces, and the health of individuals in the space is efficient through a systematic design that may control daylight consistent with the requirements. Manuscript profile