List of Articles Energy Conservation

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  1 - Assessing energy performance of simulation-powered internal sun shading devices for residential buildings in Tehran
  Alireza Karimpour darab diba Iraj Etesam
  Sustainable development as a process for meeting human development goals while sustaining the ability of natural systems to continue to provide the natural resources has an undeniable impact on all aspects of human life. Energy efficiency is an essential factor for sust More

  Sustainable development as a process for meeting human development goals while sustaining the ability of natural systems to continue to provide the natural resources has an undeniable impact on all aspects of human life. Energy efficiency is an essential factor for sustainable development and in spite of worldwide climate change problems caused by fossil fuel use, energy consumption levels in Iran, while already high, continues to rise each year. About 40% of energy consumed by the residential buildings in this country is fossil fuel-derived. Therefore providing solutions to reduce energy consumption in this sector is very important. Tehran is largest city of Iran, and significant amounts of energy are consumed in these city. However, due to its location in semi-arid climatic region, high sun’s radiation even in winter and low relative humidity of the air, this city has a high potential for energy conservation in residential buildings. Therefore the introduction of energy efficient buildings in this city would have a significant overall impact on national energy consumption levels. Sun shading devices are one of the most efficient elements to manage the interaction between the interiors and exteriors of buildings. They can significantly reduce cooling loads, improve thermal comfort, prevent the heat loss in the winter and reduce potential glare problems in residential buildings. Sun shading devices can be categorized according to their placement as interior, exterior and mid-pane. Result of research and studies shows that the effectiveness increase 35% by using outside shade protection instead of inside one. This research is aware of this fact that optimized internal sun shading devices are not comparable with the external sun shading devices in efficiency and performance. Although due to the increased utilization of them in the residential buildings, this research studied the internal sun shading devices and determined the optimized internal sun shading system, and then analyzed its effect on the energy consumption in the residential building model. In this study at the first phase, the combination of four types of internal sun shading devices with three types of windows are evaluated by the Parasol simulation software to determine the optimized internal sun shading system. Simulations show that the double glazed transparent window with dense reflective Roller Blind (as optimized sun shading system), has most appropriate thermal behavior. At the next step, a building model as a case study (The six-story apartment in the city of Tehran) was considered for simulations of energy consumption. The Building Calc. software was applied for energy simulations and heating, cooling and total energy consumption of building was calculated with and without optimized internal sun shading system. The result shows that efficiency of internal sun shading devices increase by using dense texture, high reflectance and low transfer rate. Also only by using optimized internal sun shading system reduce energy consumption of residential buildings in Tehran up to 14%. Because of the large coordination with Iran’s economic, cultural and social conditions this method could be one of the best solutions to reduce the energy demand in residential buildings. Manuscript profile
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  2 - Designing a Fuzzy Smart System for Energy Conservation for Common Sustainable Smart Home
  Vahid Ghobadian seyed omid Fatemi Behrouz Mansouri
  Iran is a vast country rich with energy resources. Perhaps, such unlimited energy resources were the reason to keep us in a dream of abundance, and as a result, neglecting justifiable energy conservation. Buildings are one of the main energy consumption and waste source More

  Iran is a vast country rich with energy resources. Perhaps, such unlimited energy resources were the reason to keep us in a dream of abundance, and as a result, neglecting justifiable energy conservation. Buildings are one of the main energy consumption and waste sources, and regretfully, still many of them are constructed violating modern engineering rules and solely through experimental and traditional methods. Air conditioning systems are still calculated and designed using estimation. However, we have to know such methods are obsolete in developed countries since ages ago, and we shall commence with a new determination and effort right away if we would like to reach the Global trend. Fortunately, many of the ways have been taken before us, and have certain instructions. In late 20th century and upon development of smart technologies, development of communication and internet networks, sensor networks and sensors, extensive efforts and studies started to use such group of technologies to present solutions to improve humans lives. Using IOT to control the house smartly has been one of the study fields during recent years. The suggested method tries to improve the house smart control for energy conservation. The used sensors are heat and humidity sensors with the duty of monitoring smart home. In this article we plan to suggest optimized smart method to control smart sustainable common home relays smartly. The sensors data is entered into the sustainable common home smart control system and is on/off considering the house relays smart systems algorithm. Manuscript profile