AbstractToday, most developed and developing countries utilize renewable energy to meet their needs. The use of renewable energy prevents environmental pollution. A concern of the governments is to deal with environmental pollution. In this paper, the types of renewable energy used in electricity generation in Iran have been studied. Studies show that during the last 20 years, 1.5% of the amount of electricity produced in Iran is supplied by renewable energy. Iran also has a much greater potential for utilizing renewable energy. By 2020, Iran has a potential of 42000 MW use of renewable energies. However, the capacity of renewable power stations constructed in Iran is 800 MW. Different regions of Iran have high wind, solar and geothermal energy potential, which unfortunately has not been used enough to meet industrial needs.
{"title":"Potential assessment of renewable energy resources and their power plant capacities in Iran","authors":"A. Ahmadi","doi":"10.54963/neea.v1i2.51","DOIUrl":"https://doi.org/10.54963/neea.v1i2.51","url":null,"abstract":"AbstractToday, most developed and developing countries utilize renewable energy to meet their needs. The use of renewable energy prevents environmental pollution. A concern of the governments is to deal with environmental pollution. In this paper, the types of renewable energy used in electricity generation in Iran have been studied. Studies show that during the last 20 years, 1.5% of the amount of electricity produced in Iran is supplied by renewable energy. Iran also has a much greater potential for utilizing renewable energy. By 2020, Iran has a potential of 42000 MW use of renewable energies. However, the capacity of renewable power stations constructed in Iran is 800 MW. Different regions of Iran have high wind, solar and geothermal energy potential, which unfortunately has not been used enough to meet industrial needs.","PeriodicalId":387818,"journal":{"name":"New Energy Exploitation and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124427615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article presents the optimal design of geothermal energy piles supporting a multi-story building at different pile spacing. The optimization model OPTPILE, based on the construction cost of the single pile, was used for this purpose. It was provided with geotechnical and structural design constraints that satisfy the requirements of building codes. The optimal design of a geothermal energy pile was studied for a 10-storey building with different pile spacing. So far, only a single energy pile has been optimized and therefore the spacing between the piles has not yet been considered in the design. However, in this work, pile spacing is taken into account by considering the entire load distribution of the multi-story building. A 3D beam-slab frame was created to determine the pile loads. The recommendation for the optimal design of geothermal energy pile spacing for a 10-storey building was developed. The results show that the optimal pile spacing (square distribution) for a 10-storey building is about 7 m. The construction cost for all thermal pile foundations and concrete structural components for a 10-storey building is estimated to be 101.1 €/m2. The optimal architecturally reasonable spacing of piles with a square distribution for a 10-storey building is 8.5 m. In this case, the cost of the concrete structural elements of the building and the piles increases by 1% to 102.1 €/m2. The cost of installing the heating pipes in the pile is about 1 €/m2.
{"title":"Determination of optimal designs for geothermal energy piles in the soil supporting a multi-storey building","authors":"B. Zlender, P. Jelušič","doi":"10.54963/neea.v1i2.43","DOIUrl":"https://doi.org/10.54963/neea.v1i2.43","url":null,"abstract":"The article presents the optimal design of geothermal energy piles supporting a multi-story building at different pile spacing. The optimization model OPTPILE, based on the construction cost of the single pile, was used for this purpose. It was provided with geotechnical and structural design constraints that satisfy the requirements of building codes. The optimal design of a geothermal energy pile was studied for a 10-storey building with different pile spacing. So far, only a single energy pile has been optimized and therefore the spacing between the piles has not yet been considered in the design. However, in this work, pile spacing is taken into account by considering the entire load distribution of the multi-story building. A 3D beam-slab frame was created to determine the pile loads. The recommendation for the optimal design of geothermal energy pile spacing for a 10-storey building was developed. The results show that the optimal pile spacing (square distribution) for a 10-storey building is about 7 m. The construction cost for all thermal pile foundations and concrete structural components for a 10-storey building is estimated to be 101.1 €/m2. The optimal architecturally reasonable spacing of piles with a square distribution for a 10-storey building is 8.5 m. In this case, the cost of the concrete structural elements of the building and the piles increases by 1% to 102.1 €/m2. The cost of installing the heating pipes in the pile is about 1 €/m2.","PeriodicalId":387818,"journal":{"name":"New Energy Exploitation and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121091308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rahimov M. Zahedi, M. Mousavi, A. Ahmadi, Ashkan Entezari
Since water and wastewater are considered as one of the most prominent energy consumers in the field of urban industries, the main objective of this study is to provide a new assessment approach in applying renewable energy in the water and wastewater industry. In this paper, an essential review of current energy storage options for different cases processes using different renewable energy and heat sources with a focus on heat storage systems and battery energy storage is given. High energy requirements currently priced by fossil fuels are expensive. The use of alternative energy sources is essential for the growing demand for water desalination. Different methods have been proposed to show the energy recovery techniques and use of renewable energy in the treatment of wastewater containing wastewater. The results indicated that increase in water supply and electricity consumption was evidenced by the increase in Tehran's annual population. In addition to the higher emissions of carbon dioxide (CO2) from diesel and oil power plants than the natural gas-fueled plants, by increasing the carbon tax to more than 30 USD per ton of CO2, it is expected that the emissions will be reduced by 30 % in all fossil-fueled power plant types.
{"title":"Forecast of Using Renewable Energies in the Water and Wastewater Industry of Iran","authors":"Rahimov M. Zahedi, M. Mousavi, A. Ahmadi, Ashkan Entezari","doi":"10.54963/neea.v1i2.47","DOIUrl":"https://doi.org/10.54963/neea.v1i2.47","url":null,"abstract":"Since water and wastewater are considered as one of the most prominent energy consumers in the field of urban industries, the main objective of this study is to provide a new assessment approach in applying renewable energy in the water and wastewater industry. In this paper, an essential review of current energy storage options for different cases processes using different renewable energy and heat sources with a focus on heat storage systems and battery energy storage is given. High energy requirements currently priced by fossil fuels are expensive. The use of alternative energy sources is essential for the growing demand for water desalination. Different methods have been proposed to show the energy recovery techniques and use of renewable energy in the treatment of wastewater containing wastewater. The results indicated that increase in water supply and electricity consumption was evidenced by the increase in Tehran's annual population. In addition to the higher emissions of carbon dioxide (CO2) from diesel and oil power plants than the natural gas-fueled plants, by increasing the carbon tax to more than 30 USD per ton of CO2, it is expected that the emissions will be reduced by 30 % in all fossil-fueled power plant types.","PeriodicalId":387818,"journal":{"name":"New Energy Exploitation and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124719668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Low-z materials are exemplary candidates in tiling critical plasma-facing components in future fusion reactors due to their low ablation rates under intense high heat fluxes especially during abnormal and hard disruption events. Beryllium and Lithium as low-z materials show good performance as plasma-facing materials in current tokamak. Future tokamaks will exhibit long duration hard disruptions, which in turn requires further investigation of plasma-facing materials, as Li and Be, to judge their performance and evaluate their erosion rates. Electrothermal plasma capillary discharges are used to simulate the high-heat flux deposition on materials to assess their erosion rates. The electrothermal plasma code ETFLOW, which is written for capillary discharges to predict the plasma parameters and erosion rates is used to simulate the high-heat flux conditions similar to expected disruption events for simulated heat fluxes from as low as ~50 to as high as ~290 GW/m2 with a reconnoitering of generating the Be and Li plasmas up to the third ionization (Br+++, Li+++). Performance of Be and Li under the lowest capillary discharge currents (50 kA and 100 kA) is almost identical, however, Li shows sharper increase in the plasma pressure, heat flux, total ablated mass and the exit velocities than Be for higher discharge currents (150, 200 and 250 kA). This huge difference between the performance of Li and Be under low and high heat fluxes can be an important issue for the future magnetic fusion reactors.
{"title":"Computational Investigation of Beryllium and Lithium Performance in Future Fusion Tokamaks","authors":"N. Elbasha, M. Bourham, B. F. Mohamed","doi":"10.54963/neea.v1i1.17","DOIUrl":"https://doi.org/10.54963/neea.v1i1.17","url":null,"abstract":"Low-z materials are exemplary candidates in tiling critical plasma-facing components in future fusion reactors due to their low ablation rates under intense high heat fluxes especially during abnormal and hard disruption events. Beryllium and Lithium as low-z materials show good performance as plasma-facing materials in current tokamak. Future tokamaks will exhibit long duration hard disruptions, which in turn requires further investigation of plasma-facing materials, as Li and Be, to judge their performance and evaluate their erosion rates. Electrothermal plasma capillary discharges are used to simulate the high-heat flux deposition on materials to assess their erosion rates. The electrothermal plasma code ETFLOW, which is written for capillary discharges to predict the plasma parameters and erosion rates is used to simulate the high-heat flux conditions similar to expected disruption events for simulated heat fluxes from as low as ~50 to as high as ~290 GW/m2 with a reconnoitering of generating the Be and Li plasmas up to the third ionization (Br+++, Li+++). Performance of Be and Li under the lowest capillary discharge currents (50 kA and 100 kA) is almost identical, however, Li shows sharper increase in the plasma pressure, heat flux, total ablated mass and the exit velocities than Be for higher discharge currents (150, 200 and 250 kA). This huge difference between the performance of Li and Be under low and high heat fluxes can be an important issue for the future magnetic fusion reactors.","PeriodicalId":387818,"journal":{"name":"New Energy Exploitation and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122400064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Energy efficiency and indoor air quality (IAQ) are two crucial required features in a building. Simultaneous improvement of energy efficiency and IAQ in a building can pave the way for obtaining a green building certification. This paper examined the performance of the airflow windows’ supply and exhaust operating modes in energy-saving and providing IAQ criteria. The analytical zonal model coupled with the airflow network model was used to evaluate the system’s thermal performance and the induced airflow. The simulation was done for an office building located in Shiraz, Iran. The results showed that the energy performance of ventilated windows is positive in nine months of the year. Compared to a conventional double-glazed window, the maximum energy savings is about 10%, which occurs in August. It is predicted that using ventilated windows in office buildings in Shiraz can improve the window’s thermal performance by an average of about 5%. The results also showed that ventilated windows could provide the fresh air needed for the building in 250 days of the year to achieve the desired IAQ index (based on ASHRAE 62.1 standard). Furthermore, the effects of glass aspect ratio, airflow channel thickness, and the size of inlet/outlet openings on energy efficiency and IAQ of the suggested window were studied. Results indicated that in the climatic conditions of Shiraz, the exhaust operating mode is much more efficient than the supply mode.
{"title":"The Performance Evaluation of Ventilated Windows in the Simultaneous Improvement of Energy Efficiency and Indoor Air Quality in Office Buildings: A Case Study","authors":"F. Khalvati, A. Omidvar","doi":"10.54963/neea.v1i1.12","DOIUrl":"https://doi.org/10.54963/neea.v1i1.12","url":null,"abstract":"Energy efficiency and indoor air quality (IAQ) are two crucial required features in a building. Simultaneous improvement of energy efficiency and IAQ in a building can pave the way for obtaining a green building certification. This paper examined the performance of the airflow windows’ supply and exhaust operating modes in energy-saving and providing IAQ criteria. The analytical zonal model coupled with the airflow network model was used to evaluate the system’s thermal performance and the induced airflow. The simulation was done for an office building located in Shiraz, Iran. The results showed that the energy performance of ventilated windows is positive in nine months of the year. Compared to a conventional double-glazed window, the maximum energy savings is about 10%, which occurs in August. It is predicted that using ventilated windows in office buildings in Shiraz can improve the window’s thermal performance by an average of about 5%. The results also showed that ventilated windows could provide the fresh air needed for the building in 250 days of the year to achieve the desired IAQ index (based on ASHRAE 62.1 standard). Furthermore, the effects of glass aspect ratio, airflow channel thickness, and the size of inlet/outlet openings on energy efficiency and IAQ of the suggested window were studied. Results indicated that in the climatic conditions of Shiraz, the exhaust operating mode is much more efficient than the supply mode.","PeriodicalId":387818,"journal":{"name":"New Energy Exploitation and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128345510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article considers the scientifically substantiated, systematized solar energy resource potentials of Turkmenistan. Geoinformation technological maps based on solar energy resource potentials for use in Turkmenistan have been developed, compiled. The obtained technical, economic potentials and environmental indicators from the use of power plants based on them have been developed. Solar geoinformation technological maps for the placement of water-lifting plants and solar thermal cells make it possible to increase energy efficiency and environmental safety. The expected environmental and economic effect of the use of solar-energy technological installations in the conditions of the Karakum desert zone is from: reduction of various harmful substances into the environment when selling at a price of 6 US dollars to CO2 carbon fund - 425437.3 tons per year, financial profit will be $ 2.5 million; fossil fuel savings 82.160 thousand tons of fuel equivalent per year or electricity generation of 663.4 GWh per year.
{"title":"Geoinformation Systems in the Development of Solar Energy in Turkmenistan","authors":"A. Penjiyev","doi":"10.54963/neea.v1i1.11","DOIUrl":"https://doi.org/10.54963/neea.v1i1.11","url":null,"abstract":"The article considers the scientifically substantiated, systematized solar energy resource potentials of Turkmenistan. Geoinformation technological maps based on solar energy resource potentials for use in Turkmenistan have been developed, compiled. The obtained technical, economic potentials and environmental indicators from the use of power plants based on them have been developed. Solar geoinformation technological maps for the placement of water-lifting plants and solar thermal cells make it possible to increase energy efficiency and environmental safety. The expected environmental and economic effect of the use of solar-energy technological installations in the conditions of the Karakum desert zone is from: reduction of various harmful substances into the environment when selling at a price of 6 US dollars to CO2 carbon fund - 425437.3 tons per year, financial profit will be $ 2.5 million; fossil fuel savings 82.160 thousand tons of fuel equivalent per year or electricity generation of 663.4 GWh per year.","PeriodicalId":387818,"journal":{"name":"New Energy Exploitation and Application","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129535521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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