List of Articles بادگیر

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  1 - Analysis of Hydrodynamic Behavior of Windbreaks in the Average Internal Temperature of Semi-Warm and Arid Climates in Kashan with the Aim of Greater Efficiency
  Mohammad Ali Karbasfurooshha Fereshteh Habib Hossein Zabihi
  10.30495/hoviatshahr.2022.65818.12175
  One of the ways to achieve a building with higher energy efficiency and an efficient system is to use local architectural experiences. In the meantime, a windbreak is one of the elements used in the past to create comfort in Kashan's hot and dry climates. The interior o More

  One of the ways to achieve a building with higher energy efficiency and an efficient system is to use local architectural experiences. In the meantime, a windbreak is one of the elements used in the past to create comfort in Kashan's hot and dry climates. The interior of these settlements in this climate aims to greater efficiency of this element by CFD software, Energy Plus, and Open Studio with a descriptive-analytical method and then analyzed the results.  It has water spray, and one of the leading causes of temperature drop in these wind deflectors is the proportionality of the dimensions-the air inlet valve to the wind deflector, water temperature, dimensions, and height of the wind deflector column. Iranian indigenous architecture's interaction with the climate is a deep and ancient interaction that has long been using its experiences and techniques to create an architecture with maximum energy savings in Iran's climatic areas. The process of formation of these techniques in the length of time and in order to adapt to the climate while utilizing the natural force in the environment has created a suitable natural space for users. Innovative technology reduces the long-standing concern of architects in saving and optimizing energy consumption in buildings. In the meantime, the windbreak is one of the elements used in the past to create comfort in Kashan's hot and dry climates. They were used to move and cool the air in the building. The primary function of the wind deflectors was to direct the outside air into the building, relative cooling by establishing a flow at work and people living in different cities and places. Research has proven that the wind deflector is a suitable device for natural ventilation of the indoor air to reduce the internal temperature of the building and create thermal comfort for the residents. Traditional windbreaks are correctly designed according to the day's needs and have been widely used in hot and dry areas of Iran. What is certain is that the use of this element in today's world requires its adaptation to today's life. Today's cities and buildings have different faces, and windbreaks are limited. And analyze how it operates in terms of form and function. Comparison of the results of the analysis of wind speed in wind turbines and how the wind is oriented in the interior shows. Due to the low thermal mass of the windbreak walls compared to the room, the temperature fluctuation is always higher than the room. To reduce the room temperature further, the priority is to use a spray windshield over windshield wipers. Especially, windshields with water spray in which most of the room has a temperature of 298 K are approximately equal to 25 degrees Celsius and are in Kashan city's thermal comfort range. One of the main factors in this Temperature drop proportionality of dimensions- air inlet valve to the windshield, water temperature, measurements, and height of the windshield column. Manuscript profile
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  2 - Finding Records of Wind Catcher in order to Demonstrate of its Iranian Identity
  Mahnaz Mahmoudi S. Majid Mofidi
      Wind tower is a part of Iranian vernacular architecture in hot and dry and hot and humid climates. It is building form ingredient that has climatic application. A traditional wind tower that served as a cooling system, used to provide acceptable venti More

      Wind tower is a part of Iranian vernacular architecture in hot and dry and hot and humid climates. It is building form ingredient that has climatic application. A traditional wind tower that served as a cooling system, used to provide acceptable ventilation by means of renewable energy of wind. Unfortunately, the contemporary architecture of Iran is entirely diverted this important architectural element in the arid areas.      A wind catcher is one of master piece of Iranian architectural design the date and record in which it was aced in Iran have remained unknown because of its location on the highest part of building which is being destructed as the first part helped by two archeological and literary areas this study has endeavored to take a stride to introduce the cultural- historical identity of Iran by demonstrating the record of wind catcher in pre Islamic area of Iran and also illustrate on the argument documents the record of its use in Iran prior to the Arabs of Persian Gulf. The research focuses on the analytical and descriptive survey and the results have been obtained by deducting documents and historical texts. It has attempted to demonstrations its long record of use in Iran. Manuscript profile
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  3 - Create comfort conditions in building by using a hybrid passive cooling system
  Mahnoosh Eghtedari Abbas Mahravan Maryam Ansarimanesh ali nouri
  10.30495/jest.2021.42469.4568
  Background and Objectives: Increasing fossil fuel consumption in the building, especially in the air conditioning sector, has increased environmental pollution and global warming.In this research, a zero-energy passive system was designed in a warm and dry climate to ve More

  Background and Objectives: Increasing fossil fuel consumption in the building, especially in the air conditioning sector, has increased environmental pollution and global warming.In this research, a zero-energy passive system was designed in a warm and dry climate to ventilate the building and provide comfortable conditions for people in the summer. This Hybrid Passive Cooling System (HPCS) includes two distinctive systems: the Solar Chimney (SC) and Evaporative Cooling Cavity (ECC).Method: This research experimental-analytical and simulation studied and tested the ability of the system in cooling the building in the warmest month of the year from 9: 00 am to 3:00 pm for ten consecutive days. The air temperature, humidity, and ambient air velocity were measured at the outlet of the evaporative cooling channel and the inlet of the solar chimney.Findings: The findings showed this system could reduce the air temperature by an average of 10  and could increase the air humidity by 34%. Moreover, the air velocity of the SC increased as the air got warm so that the maximum inlet air velocity in the solar chimney reached the highest level (2.8) at 3 pm. In addition. Since the outlet air velocity of the windcatcher rose to 0.41  at 3:00 pm compared to 9:00 am, which is equivalent to an air temperature drop of 3.6, the chamber was in comfort condition by using the hybrid system at 3:00 pm.Discussion and Conclusion: The results show that using a passive hybrid system, the chamber is in comfortable condition from 9:00 am to 3:00 pm. Calculating the cost of constructing and installing a hybrid passive system and comparing it with a water cooler indicates that the proposed is profitable since used, and the return time of the system after running and launching the system.With an increase in the number of people from 1 to 4 people, the room is in comfortable conditions at 9 am and noon, but at 3 pm the room is placed with 4 people out of the comfort zone. Manuscript profile
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  4 - Investigation of architecture of wind-towers plan on the environmental temperature reduction
  Mahnaz Mahmoudi Seyed Majid Mofidi
  Wind towers are historical Iranian vernacular architectural innovation and traditional wind towers are structured as static cooling ventilation system. The process is performed by using of renewable energy of wind. In this research, wind towers are studied in the conte More

  Wind towers are historical Iranian vernacular architectural innovation and traditional wind towers are structured as static cooling ventilation system. The process is performed by using of renewable energy of wind. In this research, wind towers are studied in the context of vernacular architecture of hot dry climates of Iran and the city of Yazd in arid is selected. The different architectural forms of wind-towers have been seen in Yazd. This article indicates the fact that formal characteristics have played a major role in their functions. From the architecture point of view, learning about wind catchers of Yazd city in this study is done by the means of the field surveys. Research method for selection of the case is randomly chosen and based on explanation and analytical method. Wind catcher typology and knowledge of the relationship governing the wind catchers architecture were those measures that are taken for the first time. The typology of the wind-catchers is done by the physical analyzing, patterns and common concepts as incorporated in the wind catchers. How the architecture of wind catcher can influence their operations or performances by analyzing thermal behavior are the archetypes of selected wind catchers. This study has used calculating fluids dynamics science, fluent software and numerical analysis as the most accurate analytical approach. 3 types were stimulated in soft ware and results show that they are different to each other and one of them has more improved operation. Manuscript profile
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  5 - Climatic zoning of Shahrood city based on windbreak location indices and parameters affecting thermal comfort
  tayebe valian s.majid mofidi mahnaz mahmoodi
  The purpose of this study is to locate windbreaks in Shahrood city with respect to climatic zoning and thermal comfort. This research is applied in terms of purpose. First, by examining the theoretical foundations, the initial list of indicators affecting the location o More

  The purpose of this study is to locate windbreaks in Shahrood city with respect to climatic zoning and thermal comfort. This research is applied in terms of purpose. First, by examining the theoretical foundations, the initial list of indicators affecting the location of windbreaks was prepared and reviewed and approved by Delphi fan. Then, in order to find areas prone to windbreak, a hybrid model was used. Also, the Olegi model was used to determine the thermal comfort in Shahrood and to identify suitable times for using windbreaks. This model incorporates the Analytical Hierarchy Process (AHP) technique and the Geographic Information System (GIS). Tools used included ArcGIS software, version 9.3 and Expert Choice software, version 2004. Paired comparison method was used to weight the indicators and zones. Six indicators of sundial, wind, altitude, temperature, relative humidity and rainfall were identified for windbreak location. Relative humidity index with a weight of 0.38 had the highest and height index with a weight of 0.154 had the lowest score. The months of May and June are in the zone of thermal comfort and there are times when windbreaks will not be very useful in Shahrood city. On the other hand, July, August and September due to high temperatures and December, January, February and March due to high cold are good times to use windbreaks. Finally, the layer related to each indicator was prepared and drawn for Shahrood city. The use of hierarchical analysis method combined with GIS and layer superimposing method makes it possible to identify and determine the optimal location for a variety of uses in a wide geographical area. Manuscript profile
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  6 - An Evaluation of Reduction and Revitalization Solutions in the old Texture of Yazd Using the Analytical Hierarchy Process (AHP) (Case Study: Sheshbadgir quarter)
  Mohsen Kalantari Aboozar Bakhshi
  This study focuses on the views of residents of  Sheshbadgir quarter in the old texture of Yazd  and their institutional capacities and social enhances, promoting economic and financial capacity. The components (factors) and functional changes and requirements More

  This study focuses on the views of residents of  Sheshbadgir quarter in the old texture of Yazd  and their institutional capacities and social enhances, promoting economic and financial capacity. The components (factors) and functional changes and requirements for service deficiency, and network access improvement are the main focuses of the study. This research is applied research where the  evaluation methods are description-analysis and survey in nature  and is based on creating an understanding of the  current  situation. The  research is set in place to improve and promote  the components of social, economic, functional  and physical elements in Sheshbadgir quarter in the old texture of Yazd  through  identifying the  main challenges and prioritizing(Rating) them  to revive and to promote the level of this quarter. Based on the results, the weight of the  five indexes of, functional, physical, social, economic and network traffic were orderly: 0.513, 0.261, 0.129, 0.063 and 0.033. based on the output of the utilized software. Therefore,  we can conclude that the effectiveness of functional element to revive the this texture was more than others. Also,  the criteria of ‘residents stay time’ in terms of social indicators with a mean weight of 0.318,  the "Household economy" in terms of economic indicators with a mean weight of 0.394, the  buildings Skeleton in physical index with a mean weight of 0.328, the “Criteria of land use”  in the form of performance indicators with a mean weight of 0.637 and the criteria of “Quarter access widening “in the  form of network traffic index with a mean weight of 0.565, were most effective among others.       Manuscript profile