List of Articles Mehrdad Mahmoudian

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  1 - Evaluation and compilation of the energy consumption attributes in the office buildings
  Mehrdad Mahmoudian Sajad Sadi
  Most of the energy consumed in the building is consumed during the operation of the building. If you save on this part of the building energy, you can have a great impact on energy consumption. One way to control energy consumption in buildings is to use building energy More

  Most of the energy consumed in the building is consumed during the operation of the building. If you save on this part of the building energy, you can have a great impact on energy consumption. One way to control energy consumption in buildings is to use building energy labels. In order to provide an energy label, it must be possible to identify the factors affecting the energy consumption of the building. Introducing and studying energy-related indicators is one of the appropriate methods for managing energy consumption. With the help of these indicators, energy consumption can be managed and optimized. In this paper, by examining the main sectors of energy consumption in the buildings using the hierarchical analysis method (in order to label and optimize the energy consumption of office buildings), effective Attributes have been identified and introduced. The systematic search focuses on a variety of sources, including documents, databases, conferences, and various journals. First, search terms are selected. After the findings of library studies, field studies are conducted. This data can be described as experimental or new data. In the present study, two questionnaires were used to conduct field studies and obtain the required information. Improving energy consumption and reducing environmental pollution are key to sustainable energy. As the major consumer of energy, the building sector accounts for more than 40% of total energy consumption. One of the most important consumers of energy are office buildings, which include applications such as air conditioning, heating, cooling, hot water and various equipment. In this research, office buildings have been divided into different sections with the help of previous studies, and then in each section, the relevant Attributes have been extracted from the literature review. A total of 62 indices were extracted in 12 different sections. . Manuscript profile
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  2 - The effect of comprehensive modeling of the earth system by the fitting method on lightning overvoltages in isolated wind turbines in the direction of smart arresters
  Mehrdad Mahmoudian Sajad Sadi
  The construction of wind farms in areas with high isochronic number, high tower height, intensification of the electric field due to the sharp tips of the blades and the possible contact of the blades with the nearby clouds, the importance of checking the overvoltage ap More

  The construction of wind farms in areas with high isochronic number, high tower height, intensification of the electric field due to the sharp tips of the blades and the possible contact of the blades with the nearby clouds, the importance of checking the overvoltage applied to the network The power by the high frequency wave makes the lightning brighter. Also, the wind turbine grounding system should be designed in such a way that, in addition to achieving impedance specifications with standard steady state values, it can effectively drain the lightning current into the ground. In this article, in the simulation of the earth system, the soil ionization phenomenon and the high frequency behavior of its electrodes have been considered so that it can be used as a reference potential to measure the voltage of all points. Then, the vector fitting method has been used to model the earth system. Of course, the input of the vector fitting method can be considered the frequency response of each element which is calculated numerically using common methods such as the FDTD method. Since the use of a more accurate calculation method provides more reliable results to the users, therefore, in this article, the overvoltage to a 2 megawatt wind turbine has been investigated using EMTP specialized software. Manuscript profile