Mohammad Davand Articles List

List of Articles Mohammad Davand

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1 - Investigation of the Rate of Extremely Low Frequency (ELF) Magnetic Flux Density in the Suburbs Residential Areas of High-power Lines in Esfahan
Raziye Saeid Majid Abbaspour Seyed Alireza Haji Seyed Mirzahosseini Nabiollah Mansoori

Purpose History: Emergence of high-voltage power lines in the human life has fueled the investigations on the adverse impacts of magnetic fields on the human and environment. Contact with these fields will adversely affect the human health. On the other hand, extent of More

Purpose History: Emergence of high-voltage power lines in the human life has fueled the investigations on the adverse impacts of magnetic fields on the human and environment. Contact with these fields will adversely affect the human health. On the other hand, extent of these sources due to the waves’ invisibility and propagation from different sources has increased the importance of these studies. The aim of this research is to evaluate the magnetic flux density in the vicinity of the high-voltage power lines and determine the critical points in GIS. Materials and Methods: In this field research, measurements were conducted in 13 districts of Isfahan using wave-measuring device (HI-3604) according to IEEE standard in 522 points. The results were analyzed by SPSS and GIS. Findings/Results: Minimum and maximum magnetic flux densities were 0.13 and 4.6 µT measured at 0 and 20 m distances from the high-voltage power line, respectively. This shows that the measured quantitates will be declined by increase of the distance and height and reduction of the current. A significant relationship was observed between the magnetic flux density and distance, height and current (P-value>0.05). Discussion and Conclution: The results also suggested that the magnetic flux density was lower than the ICNIRP in all the investigated points. However, regarding the consequences of these waves even in far smaller levels (compared to the standard) on the human health, the residential regions should be established in proper distance to these lines to minimize the exposure. In GIS, the critical points were observed in Shafagh Blvd. in vicinity of line 230; while the safe pints were located in Vali-e-Asr St. in vicinity of 63-kV line. Manuscript profile
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2 - The Impact of Exposure to Noise Pollution on the Accidents of Crystal and Glass-Making Plants Using GIS
Naghmeh Dehkhoda Seyed Alireza Haji Seyed Mirzahosseini Parvin Nasiri Seyed Mohammad Reza Miri Lavasani
20.1001.1.15625532.1400.19.2.1.5

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3 - Assessment of the Geographic Location of Photovoltaic Power Plants on their CO2 Emission Reduction Using Ret Screen Software
Neda E Niknam Seyed Alireza Mirzaye hosseini Ali Mohammadi Lobat Taghavi

Increasing greenhouse gases emissions and limited fossil fuel resources, are two of the most important challenges of the century. Thus, the use of renewable energy is quickly developing and progressing in most countries. One of the appropriate resources for supplying el More

Increasing greenhouse gases emissions and limited fossil fuel resources, are two of the most important challenges of the century. Thus, the use of renewable energy is quickly developing and progressing in most countries. One of the appropriate resources for supplying electricity is solar energy. Photovoltaic systems have several unique advantages including pollution-free industrial processes, small off-grid applications, and low cost of repair and maintenance.In this study, two photovoltaic power plants, each with 30 KW capacities, in Kerman and Sari cities were selected and their economic and environmental analysis were conducted based on climatic conditions and local solar radiation using Ret Screen software.Kerman City located in the best radiation zone of Iran with 5/2 Kwh/m2/day energy reception and Sari City situated in the least appropriate sun radiation zone with 3/9 Kwh/m2/day energy reception were selected in this study.Results revealed that the use of photovoltaic power plant would reduce CO2 emissions in Kerman and Sari by 36 and 9 tons per year, respectively. Also the payback period in Kerman and Sari would be 7/3 and 11/2 years. According to this research, the geographical location of the photovoltaic power plant is also very important. Thus, the payback period for Kerman was 4 years less than sari and the amount of Reduction CO2 emission in Kerman was 4 times higher than Sari. Manuscript profile
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4 - Technical, Environmental and Financial Feasibility Study of Solar Power Plants by Retscreen, according to the Targeting of Energy Subsidies (Case Study: Photovoltaic Plant of Tehran Science and Research Branch Islamic Azad University)
Majid abbaspour Ali reza Mirzayehosseini Taraneh Taheri

The energy consumption growth in the country has been increased so much that it has made us an importer of energy instead of being a major exporter.In order to face such a threat, implementing strategies to optimize energy production and consumption,modif More

The energy consumption growth in the country has been increased so much that it has made us an importer of energy instead of being a major exporter.In order to face such a threat, implementing strategies to optimize energy production and consumption,modifying energy consumption patterns and utilization of renewable energies is necessary. In this regard Iran Azad University, as one of the first pioneers of utilization of renewable energies incampuses, has established a 12 kW photovoltaic power plant in Tehran science and Research Branch of it.In this study, we have taken advantage of The RETScreen International Photovoltaic Project Model in order to evaluate the energy production, life-cycle costs and greenhouse gas emissions reduction and finally analyze the financial viability.In this study, based on new electricity tariffs, three scenarios have been developed, according tothe targeting of energy subsidies and we have also dedicated one of our scenarios to the reduction ofgreenhouse gasses. In the first case the electricity price was set to 450 Rial/kWh and no credit was assigned to the reduction of greenhouse gasses (GHG), therefore equity payback (Return positive cash flow) has been 12.1 year. In the second case the electricity price was set to 2100 Rial/kWh, therefore equity payback (Return positivecash flow) was 8 year. Finally in the last scenario by considering a credit to the reduction of greenhouse gasses and electricity price being 2100 Rial/kWh and applying solar panels with high efficiency and suitableatteries(DOD=60%), equity payback(Return positive cash flow) will be reached within6 years. In conclusion, we can say that by applyingnew technologies and establishing supportive policiesof the government payback time can be reducedremarkably Manuscript profile

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List of Articles Mohammad Davand