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Open Access Article
1 - The Assessment of Role of Orientation, Type of Materials and Facade Construction Details on the Energy Consumption of Residential Buildings in Tehran
amin alah ahadiIn this research, focusing on the East, West and South regions of Tehran, the cooling and heating load in residential buildings in different geographical directions has been compared, and concerning the building façade material and construction details, optimal c MoreIn this research, focusing on the East, West and South regions of Tehran, the cooling and heating load in residential buildings in different geographical directions has been compared, and concerning the building façade material and construction details, optimal choices have been proposed. This study answers these questions, which of the typical façade materials and construction detail in Tehran city have the best performance in reducing the energy consumption of residential buildings, and what is the effect of facade direction on heating and cooling energy consumption of residential buildings. For this purpose, the simulation tool has been utilized using Energy plus software with a design-builder interface for thermal analysis. The results of this study show that the heating load of residential buildings in Tehran is higher than the cooling load in the western and northern units and the cooling load of the building is higher than the heating load in the southern and eastern units. In this regard, the heating load in the west facing units is 8%, and in the north units, it is 15 to 26% more than the cooling load. In south-facing units, the heating load of the building is 11 to 30%, and in east-facing units, the heating load of the building is up to 20% less than the cooling load. Comparison of heating load in southern, northern, eastern and western units shows that the best orientation of the building in Tehran to reduce the heating load of the building are respectively south-facing, east-facing (19 to 22% more than the southern unit), west-facing (20 to 25% more than southern units) and north-facing (30 to 40% more than southern units). The best orientation of the building in Tehran to reduce the cooling load of the building are the units facing south, north (0.5 to 7.5% more than the southern unit), west (6.5 to 7% more than the southern unit) and east (10.5 more than the southern unit) respectively. Regarding total cooling and heating load, the best orientation of the building in Tehran to reduce energy consumption are respectively south and then east facing units (about 16% more than southern units), west (15 to 17% more than southern units) and north (18 to 20% more in different views than southern units). The priorities of selection of facade materials and construction details in southern facades are brick facades with dry connection method, concrete panels with dry connection method and stone facades with dry connection method. In north-facing units, this arrangement includes a brick facade with a dry connection method, concrete panels with a dry connection method and stone facades with a dry connection method. In the west facing units, concrete panels with dry connection method, brick facades with dry connection method, and stone facades with dry connection method are the best. In the east facing units, brick facades with dry connection method, stone facades with dry connection method, ceramic facades with dry connection method and concrete panels with dry connection method have better performance in reducing the energy consumption of the building. Manuscript profile -
Open Access Article
2 - Heat loss reduction using ceramic micro-particles in paint of the inner walls of a room with radiation cooling panel
Ghanbar Ali Sheikhzadeh Ali Akbar Azemati Armin SaraeiIntroduction and Aim Limited resources and the need for energy conservation have made the use of energy loss preventive thermal insulations, like the paints containing micro mineral particles, an economic option in different industries and buildings. The aim of the curr MoreIntroduction and Aim Limited resources and the need for energy conservation have made the use of energy loss preventive thermal insulations, like the paints containing micro mineral particles, an economic option in different industries and buildings. The aim of the current study is to investigate the effect of modern insulation, such as paints with ceramic micro-particle in internal walls of a room with radiative cooling panels, on energy consumption. Method In the present study, to investigate the flow field and temperature distribution in a room with a wall of radiation cooling, a three-dimensional cavity has been simulated with different boundary conditions. The effect of coating with a paint containing ceramic micro-particles, ordinary acrylic paints and no paint in different states of changing the boundary conditions, such as changes in wall temperature and absorption coefficient on a room with wall cooling radiation has been studied and the results were compared. Findings Using the computer code, the interior surface temperature is obtained for different boundary conditions and used as a boundary condition for simulation. In case of using wall radiative cooling panels, room temperature is in the comfort zone in all cases, and the lowest temperature occurs when using paints with ceramic micro-particles in the interior surfaces of the room. Discussion It was observed that the coating containing ceramic micro-particles acted as a thermal insulation and reduced energy consumption by about 22% . Manuscript profile -
Open Access Article
3 - ارزیابی سامانه بامسبز در مقایسه با بام معمولی از منظر بهرهوری انرژی در راستای برنامهریزی شهری (کلانشهر مشهد)
افسانه قلعه نوی آزاده شاهچراغی حامد کامل نیا -
Open Access Article
4 - بررسی نقش سیستمهای غیر فعال خورشیدی در ساختمانهای صفر انرژی شهری، جهت آسایش و کاهش مصرف انرژی (مطالعه موردی: ولیعصر شهرتبریز)
علیرضا اصغری آیدا ملکی گاوگانی حسن ابراهیمی اصل حسن ستاری ساربان قلی -
Open Access Article
5 - Effectiveness Evaluation of Trombe Wall for Optimum Pattern of Building Heating System at Shiraz
سیدحسین هاشمی آرش نجفی سیدمحسن حسینیSolar energy is a valuable and available renewable energy and its charge of technology has not great. Fossil fuels consumption grows in building heating systems and it is better to manage it with practical new engineering systems similar Trombe wall that can be reduced MoreSolar energy is a valuable and available renewable energy and its charge of technology has not great. Fossil fuels consumption grows in building heating systems and it is better to manage it with practical new engineering systems similar Trombe wall that can be reduced energy consumption at winter. A major component used in Trombe wall technology, thermal storage system materials and glass and Despite the heat transfer patterns in Trmb wall system will occur. Glass is ideal for this system, should have unique features such as high strength and high thermal stability. However wall storage used to store solar thermal energy should be the maximum.. In this research, effectiveness evaluation of this system at Shiraz is studied. Results show this technology is advantageous and successful for Shiraz and offers the optimum energy system pattern. Manuscript profile -
Open Access Article
6 - ارزیابی سامانه بامسبز در مقایسه با بام معمولی از منظر بهرهوری انرژی در راستای برنامهریزی شهری (کلانشهر مشهد)
افسانه قلعه نوی آزاده شاهچراغی حامد کامل نیا -
Open Access Article
7 - بررسی نقش سیستمهای غیر فعال خورشیدی در ساختمانهای صفر انرژی شهری، جهت آسایش و کاهش مصرف انرژی (مطالعه موردی: ولیعصر شهرتبریز)
علیرضا اصغری آیدا ملکی گاوگانی حسن ابراهیمی اصل حسن ستاری ساربان قلی -
Open Access Article
8 - کاهش مصرف انرژی در واحد تقطیر نفت خام پالایشگاه تبریز با استفاده از تجزیه اکسرژی
الهام حاجی قاسم شربت دار میراسمعیل معصومی