Comparison of CO2 Generation Between Iran and OECD Countries with Approach of Renewable Energies Utilization
Kaveh
Bekhrad
Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
author
Hossein
Yousefi
Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
author
Younes
Noorollahi
Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
author
Sadaf
Karkoodi
Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
author
Soleil
Roumi
Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
author
text
article
2018
per
Increase of CO2 generation is widely regarded as one of the 21st century catastrophes. According to recent global reports. Iran is known as the seventh country in the world with regards to CO: emission. Utilizing renewable energies, have been suggested in recent years due to international environmental regulations, in order to control the CO2 emission level and global temperature increase. In this research, GDP, Total Primary Energy Supply and Renewable Energy Supplyof OECD countries and Iran are studied and a regression analysis is conducted to assess the influence of TPES and RES on the CO: emission level. Furthermore, three scenarios are assumed for the future of energy in Iran to estimate the CO2 emission in 2025. The first scenario is assuming that all businesses are working as usual until 2025. In the second scenario it is suggested that with improvements and increase of renewable energies utilization to meet development programs of Iran, the level of TPES would be constant until 2025. Finally, in the third scenario in order to meet goals of climate change Paris agreement, Iran should decrease the level of CO2 emission by 4, 8 or 12 percent in 2025. In the end, some suggestions for moving in the sustainable development pathway are presented for Iran.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
1
8
https://www.jrenew.ir/article_59888_78fb67b141b3cf6eb472eb133257d7ff.pdf
An Overview of the Most Important Management Technologies to Generate Electricity from Solar Energy and Economic Evaluation with Emphasis on Photovoltaic Systems and Sustainable Development Goals
Negin
Nasseh
(corresponding author) Young Researchers and Elites club, Science and Research Branch, Islamic Azad University, Tehran, Iran
author
Mohammad
Kamrani far
MSc Student of Environmental Health Engineering, Student Research Committee, Faculty of Health, Birjand University of MedicalSciences, Birjand, Iran
author
AliReza
Beirami
Master of Executive Management, Strategic Management Orientation, Tehran, Iran
author
text
article
2018
per
Subjects and goals: Using renewable energies such as solar energy instead of fossil fuels in electricity generation, in addition to saving costs, we can prevent greenhouse gas emissions and contribute to sustainable energy supply in the country, because the energy resources are of the most important elements for sustainable development. The purpose of this study was investigation of the most important technologies for electricity generation from solar energy, and economic evaluation with emphasis on photovoltaic systems and sustainable development goals. Methodology: this is a review-based study, set based on library studies, analysis and integration of information and resources. Findings: Technologies for generating electricity from the sun are divided into three categories: photovoltaic, solar thermal concentrators and emerging technologies, including solar chimney and ponds. Among the three categories, photovoltaic technology, which acts based on sunlight conversion into electricity, has the highest growth; and many countries are recently using it. The importance of the use of photovoltaic technology is electricity generation directly and without the use of moving and chemical mechanisms. Conclusion: If energy is produced and consumed in a way that long-term human development is provided in all economic, social and ecological aspects, sustainable energy concept will be realized, therefore, sustainable energy supply is the necessity of sustainable development. Calculation of indicators of economic evaluation suggests that in the absence of subsidies from the government, utilizing solar energy to generate electricity is not economic; in such circumstances, the only solution is the payment of subsidies to achieve positive net worth.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
9
18
https://www.jrenew.ir/article_51441_d3ba10cc65b46261244d015da1a45863.pdf
Site selection of closed loop geothermal pumps with Geographic Information System on the whole scale of Iran
Hossein
Alem
Department of Earth Sciences, Shiraz University, Shiraz, Iran
author
Mahmoud
Fallahi
Department of Earth Sciences, Shiraz University, Shiraz, Iran
author
Saba
Nahas Farmanieh
Department of Earth Sciences, Shiraz University, Shiraz, Iran
author
text
article
2018
per
Fossil energy sources are temporaryand their use can cause many environmental pollutions, therefore, clean and alternative energy sources are needed. Geothermal pumps are closed loops of these energies but so far, an applied study on the use of this system has not been carried out on the whole scale of Iran. The use of routine methods for obtaining accurate information, from local ground conditions for installation, requires laboratory equipment and carrying outcostly geological experiments on a local scale. As a result, the best method in terms of economic efficiency, on the whole scale of Iran, is the integration of the basic layers of information in the GIS in a spatial identification phase, to provide a basic distribution map for the installation of geothermal pumps. This map is designed to determine the baseline conditions, including the thermal conductivity of the bedrock, soil engineering, climatic and environmental conditions, land installation and land use, and their integration into the GIS. This map improves management in the following ways: site selection susceptible areas and reduce the cost of designing and installing geothermal pumps closed loops.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
19
29
https://www.jrenew.ir/article_59898_0a8eb80da7ba61a9d15230c40659ecc8.pdf
Off-Grid Solar Photovoltaic Power Plant Design and Implementation based on Energy relations and Losses in the System
Mostafa
Zamani Mohiabadi
Faculty member, Research Department of High Temperature Fuel Cell, Vali-e-Asr University of Rafsanjan
author
Seyed Hossein
Ahmadi
MSC of Instrumentation & Automation in South Pars Gas Company “SPGC”
author
text
article
2018
per
Our country is a sunny region, therefore it is very important to access and utilize the technology of using this renewable energy quickly. The effective parameters have been brought in this article for planning a photovoltaic electrical system. Moreover, all the processes of designing and implementation a sample system that is brought here and is used in train station with daily use of 5kw energy that cannot be accessible of grid-electricity because of the high price, and far from the grid. Since the technology of photovoltaic is improving daily and very fast, in this article we have tried to revise all the parameters that effect on an improvement of this system.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
30
38
https://www.jrenew.ir/article_59899_a1e888aa2410e7f5367ef61b66c4a202.pdf
Comparison of Solar PV/T Panels In Terms of Design and Performance
Fariborz
Jahanshah
Power and Energy Department, Institute Of Energy and Hydro Technology, Tehran, Iran
author
Ali
Hashemi
Technical and Vocational University (TVU), Technical Faculty of Mohajer Branch, Isfahan, Iran
author
Farhad
Jahanshah
Mechanical Department, Islamic Azad University Majlesi Branch, Isfahan, Iran
author
text
article
2018
per
The photovoltaic/thermal (PV/T) panels are designed in order to perform the total efficiency by recovery the heat during the electricity production. In this paper we have a review on PV/T panel designs. The six new designs are compared and for each model investigate the flow plane and cooling fluid. The study shows the efficiency are effected by some important parameters such as, collector covered, the number of passes and the gap between the absorber collectorand the solar cells model. The electrical efficiency is improved by cooling the solar panels. So there are methods for cooling combinations panels. Comparison shows spiral flow design model with 50.12% heat efficiency and 11.98% electrical efficiency are good enough to use. The application of glazed glass in panels increase heat efficiency more than unglazed glass but the electrical efficiency is reversed. The total efficiency of panels with glazed and unglazed glasses is 13.36% and 11.92% respectively. The gap between solar cells and material need to minimize to prevent heat escape, so the optimum is 15mm to 40mm.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
39
48
https://www.jrenew.ir/article_59900_ea953e6310bee09344e438b833e9f3e3.pdf
Spectral conversion of light using luminescent down-shifting for enhancing the performance of solar cells – A short review
Hossein
Delavari Amrei
Department of chemical engineering, Faculty of engineering, University of Bojnord, Bojnord, Iran
author
Jafar
Shahrivar Guzullo
School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
author
text
article
2018
per
Spectral modification (spectral conversion) of light is a type of practical photon management technique to enhance solar cells performance. There are different methods for changing of energy and wavelength of photons: 1- Conversion of photons with low energy and long wavelength to photons with high energy and short wavelength; 2- Conversion of photons with high energy and short wavelength to photons with low energy and long wavelength. Threre are two mechanisms for second method: Down conversion (DC) and photoluminescence. Using luminescent down-shifting (LDS) layer is a strategy for practical use of second method and improving the poor spectral response of solar cells to short-wavelength light. The LDS layer absorbs photons in the 300–500 nm range, and re-emits them at longer wavelengths where the photovoltaic (PV) device exhibits a better response. This paper is a short review of different technique for spectral modification, materials that using for construction of LDS layer (host matarials and convereters) and effect of the application of LDS on the performmance of different solar cells. Also, light pass in a LDS layer was studied.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
49
56
https://www.jrenew.ir/article_59901_4863dab7864197ca8c875468a098fcf3.pdf
Environmental, Social and Economic Effects of Photovoltaic Cells Performed in Administrative Building (Case Study: Ilam City)
Mona
Farhadian
Scholar, Department of (Architecture), Ilam Branch, Islamic Azad University, Ilam, Iran
author
Mojtaba
Noorollahi
Assistant professor, Department of (Architecture), Ilam Branch, Islamic Azad University, Ilam, Iran
author
text
article
2018
per
Energy is an indispensable element for economic, social and quality of life. With increasing welfare today, the energy needs are rising very fast, while energy sources are limited. In the near future, human beings will face two major crises: environmental pollution and climate change due to fossil fuels, and the other is an accelerating trend towards ending these resources. What is important is the existence of strategic policies around the world and the development of applied research in recognized scientific institutions and research institutes, which introduces renewable energies as one of the ways to deal with environmental pollution and compensate for the limitations of fossil fuels. In this research, we first studied the potential of using solar energy in Iran and Ilam and the parameters of solar photovoltaic system selection in the building; then comparing the effects of one-year energy consumption, economic, social and environmental benefits before and after the installation of photovoltaic solar system in the building The administrative office of Ilam Power Distribution Company. Estimated by installing 10 kilowatts of solar panels in an office building, the annual reduction of more than 11.477 metric tons of carbon dioxide gas into the environment, equivalent to planting 521.68 trees, can be saved and about 40989.95 liters of crude oil can be saved.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
57
66
https://www.jrenew.ir/article_59902_e3c10c9919b941e4215cfea898643680.pdf
Experimental study of performance of a prototype natural convection solar dryer
Mohammad taghi
Qarehkhani
Masters, Mechanical Engineering, Technical and Vocational Training Organization, Azadshar, Iran
author
text
article
2018
per
The aim of this project is to build a prototype of solar dryer with natural convection and to study thermal performance with respect to the amount of solar radiation in different climatic conditions, variation of collector area and collector angle and orientation of solar dryer. In this sample, it is possible to manually rotate the device 360 degrees with the help of the wheels. In order to increase the thermal efficiency of solar drying due to climate and seasons change, the ability to change the collector angle has been created by changing the height of the between the hinge and collector boxes and boxes of food, While this feature is not found in samples fabricated past. In this study, the optimal collector angle positioned to the south was observed 60 to 70 degrees. By using the energy equation it was found that increasing the collector area increases the amount of energy absorbed by the collector. This increase was also observed experimentally. But the amount of energy predicted by energy equation with experimental values differs. This is due to the effect of collector area on the inlet temperature of the working fluid and thermal lost coefficient.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
67
75
https://www.jrenew.ir/article_59903_ccd0f51948f33ee11b777770905ad742.pdf
Investigating the Renewable Energy Resources and the Role of Solar Cells
Sadegh
Rasoul Ahari
Ph.D. Student,Mechanic Department,Tabriz Azad University,Tabriz,Iran
author
text
article
2018
per
Humanity has long been using the abundant and accessible nature of energy and looking for new ways, In addition to Make it easier than before, do all of the project with the lowest cost and the highest speed and take a step for more relief. According to reducing non-renewable energy sources such as fossil fuels, Energy crisis is one of the most important issues in today's world. Also use these resources, Causes many environmental pollution and Causes to the emergence of a global warming phenomenon. Therefore, the desire to use renewable energy sources has been considered and Direct conversion of the rays of the sun into electricity by using the equipment called photovoltaic, it is the use of solar energy. Here is an overview of the sun's energy and Making Cells Based on Silicon Wafers and Semiconductor layers are made in the construction of solar cellsHas been investigated, Also, solar cells, as photovoltaic devices converting sunlight to the electric current and Especially Polymer Solar Cells and Their performance mechanism has been considered as one of the most important renewable energy sources.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
76
81
https://www.jrenew.ir/article_59904_91d0bb8ea90bcc32c2ac37cc172be473.pdf
Nonlinear Relationship between Economic Growth, Energy Price and Renewable Energy:The threshold regression approach
Mohsen
Mohammadi Khyareh
Department of Humanities, Gonbad-e kavous University, gonbad Kavous, Iran
author
Ali
Karshenasan
Department of Humanities, Gonbad-e kavous University, gonbad Kavous, Iran
author
text
article
2018
per
In this paper, using the threshold regression approach, the impact of energy prices on the development of renewable energy in different regimes of Iran's economic growth rate is examined. Experimental data from the Central Bank of Iran site was collected during the period (1360-1993). The results showed that there is a threshold in the regression relation, which equals 7.74% in annual rates of GDP growth. Based on the threshold value, the observations were divided into two regimes with low economic growth (economic growth below 7.74%) and high economic growth (economic growth above 7.74%). The findings show that there is a negative and significant relationship between the consumer price index and the share of renewable energy in the country during high economic growth. This can be due to unsustainable and cross-sectional economics, as well as a lack of proper management of resources due to increased energy-related revenues and subsidized energy, as well as the private sector's reluctance to use renewable energy with cheap fossil energy. Also, in Iran, in times of low economic growth, there is a negative relationship between economic growth and the share of renewable energies.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
82
90
https://www.jrenew.ir/article_59905_575432144716da467c8c2f856efbd3e6.pdf
Evaluation of energy consumption reduction in residential building according to optimal orientation and the percentage of openings in the city of Anzal
Sepideh
Rasti
Department of Architecture, Lahijan Islamic Azad University, Lahijan, Iran
author
Mohsen
Roshan
Department of Architecture, Lahijan Islamic Azad University, Lahijan, Iran
author
text
article
2018
per
According to the increasing consumption of energy and unlimited use of fossil fuels, a great deal of concern creates about supplying energy that is the most important biological factor for survival in the future. Correct orientation of buildings and the optimal percentage of openings based on the location of geographical region, system of sun irradiance during cold and warm seasons of a year, necessity of heating the buildings in winter or providing cooling energy in summer and optimal lighting in a day can reduce energy consumption. In this paper, atwo-storey building in the city of Anzali had been simulated according to the geographical region in Design Builder Software 5.0.3.007 and optimal orientation and the percentage of windows on the wall had been investigated. The results of heating, cooling and lighting energy consumption were registered by placing the building at the angle of zero and rotating 10 degrees clockwise up to 360 degrees in each analysis and in the context of checking the optimal level of window from zero to 100 percent of the ratio of openings to the view. The analysis of this software showed that the level of the window was 50 percent at north and 60 percent at south. In examining the orientation of building for reducing energy consumption, with respect to the total energy diagram that was the average of heating, cooling and lighting energy represented the most optimal direction of buildings at north part.
Journal of Renewable and New Energy
Iranian Society of Heating Refrigeration Air Conditioning Engineers (IRSHRAE)
2423-4931
4
v.
2
no.
2018
91
100
https://www.jrenew.ir/article_59908_a9f4ea25f57f2bea41c85f14373a2073.pdf