International Journal of Energy Studies最新文献_第5页

Transverse Flux Generator Design for Wind Turbine at the Rural Areas 农村风力发电机横向磁通发生器设计

International Journal of Energy Studies Pub Date : 2023-05-26 DOI: 10.58559/ijes.1284416

E. Hüner

引用次数: 0

Grid connected photovoltaic system design an example application for İstanbul province 光伏并网系统设计在İstanbul省的应用实例

International Journal of Energy Studies Pub Date : 2023-04-17 DOI: 10.58559/ijes.1264183

Taner Di̇ndar, Ali Samet Sarkin, Vedat Esen

{"title":"Grid connected photovoltaic system design an example application for İstanbul province","authors":"Taner Di̇ndar, Ali Samet Sarkin, Vedat Esen","doi":"10.58559/ijes.1264183","DOIUrl":"https://doi.org/10.58559/ijes.1264183","url":null,"abstract":"It is seen that the damage to the environment has increased with the use of fossil fuels around the world. It is known that studies continue to minimize the damage to the environment with alternative energy generation methods. Recently, it is seen that generating electrical energy using solar energy, known as clean energy, has an important place. With the developing semiconductor technologies, the use of photovoltaic systems is increasing day by day. The aim of this study is to estimate the amount of energy that will be produced by simulating and modeling the performance of PV (Photovoltaic) systems using PVsyst and PV*SOL programs before the Photovoltaic systems are installed in the region. In the study, grid-connected roof system modeling was made in Bakırköy district of Istanbul province. In the modeling of the system, a total of 90 solar panels were placed on an area of 114.9 m 2 , in East and West directions. In total, it is predicted that 17.1 kW of energy will be obtained when the system is used. In the system design, the avoided CO₂ emission is calculated as 8,856 kg/year and the amortization period is calculated as 7.2 years. When the programs are used, the analysis of the system is made before the implementation and it is seen that time and cost savings are achieved.","PeriodicalId":159867,"journal":{"name":"International Journal of Energy Studies","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122387676","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}

引用次数: 0

A Detailed Emission Analysis Between Regional Jet and Narrow-Body Passenger Aircraft 支线客机与窄体客机的详细排放分析

International Journal of Energy Studies Pub Date : 2023-04-12 DOI: 10.58559/ijes.1270530

Ugur Kilic

{"title":"A Detailed Emission Analysis Between Regional Jet and Narrow-Body Passenger Aircraft","authors":"Ugur Kilic","doi":"10.58559/ijes.1270530","DOIUrl":"https://doi.org/10.58559/ijes.1270530","url":null,"abstract":"In this study, a comparison in terms of environmental impact is carried out between regional jet and narrow-body passenger aircraft with different Maximum Take-Off Weights (MTOW) and seating capacities considering the fuel burn and emissions. The flight trajectory is selected from Erzincan Yıldırım Akbulut Airport to Ankara Esenboğa Airport and that trajectory is a frequently performed domestic flight between Erzincan and Ankara. Integrated Aircraft Noise and Emissions Modelling Platform (IMPACT) developed by EUROCONTROL is used for the calculation of fuel burn, CO2, H2O, and other gas emissions (NOx, SOx, CO, HC, soot, and other trace compounds) for the per phase of flight. These emissions have an impact on human health, air quality, and the ecosystem, and cause air pollution, climate change, and global warming worldwide. Commercial air-transport-based simulations are created for regional jet and narrow-body passenger aircraft. According to the results, flying with regional jets which have lower MTOW from/to airports such as Erzincan Yıldırım Akbulut Airport, where the passenger density per aircraft is low, provides advantages in terms of fuel burn and emissions. It is expected that this study will serve as a guide for airline operators for fleet selection based on fuel burn and emission parameters.","PeriodicalId":159867,"journal":{"name":"International Journal of Energy Studies","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124190124","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}

引用次数: 0

Experimental and numerical investigation of different wing profiles 不同翼型的实验与数值研究

International Journal of Energy Studies Pub Date : 2023-04-07 DOI: 10.58559/ijes.1220776

M. Saltan

{"title":"Experimental and numerical investigation of different wing profiles","authors":"M. Saltan","doi":"10.58559/ijes.1220776","DOIUrl":"https://doi.org/10.58559/ijes.1220776","url":null,"abstract":"Computational Fluid Dynamics (CFD) techniques are widely used in product development processes due to efficient algorithms to solve Navier Stokes equations. In this study, the coordinates of the NACA 1412 and NACA 2415 sections selected from the standard wing sections of the National Aviation Advisory Committee (NACA) have been implemented with specific procedures to create new geometries and a new wing profile design using the coordinate method. The wing profile geometry is created from the coordinates available in the literature. Fixed two-dimensional viscous flows around the generated wing profiles are simulated using commercially available ANSYS-Fluent software. The mesh structure used was created using the C type and rectangular structure. CFD and wind tunnel analysis of attack angles ranging from certain degrees. The aerodynamic coefficients of the related statuses, i.e. the lift and drag coefficients obtained from the analysis, have been compared with the wind tunnel test results. Aerodynamic research in recent years focuses on active flow control concepts, laminar flow control, fuel economy and higher transport/drag force ratio. This is designed to understand and analyze flow behavior around airfoils using the CFD method.","PeriodicalId":159867,"journal":{"name":"International Journal of Energy Studies","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133604426","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}

引用次数: 0

A systematic study on adsorptive removal of arsenic using low cost adsorbents with or without the presence of NOM 低成本吸附剂对含或不含NOM吸附去除砷的系统研究

International Journal of Energy Studies Pub Date : 2023-04-06 DOI: 10.58559/ijes.1205280

Seda TÖZÜM AKGÜL, İ. Yildiran, Turgut Erdem, N. Ates, S. S. Kaplan Bekaroglu

{"title":"A systematic study on adsorptive removal of arsenic using low cost adsorbents with or without the presence of NOM","authors":"Seda TÖZÜM AKGÜL, İ. Yildiran, Turgut Erdem, N. Ates, S. S. Kaplan Bekaroglu","doi":"10.58559/ijes.1205280","DOIUrl":"https://doi.org/10.58559/ijes.1205280","url":null,"abstract":"Arsenic is a toxic and bio-accumulating element in water bodies, especially in drinking water sources.One of the methods used to remove arsenic from drinking water is adsorption. NOM (natural organic matter), which is ubiquitous in natural aquatic environments, can inhibit arsenic adsorption by competing with arsenic for adsorbent surface sites. The main objectives of this study were to investigate the competitive adsorption between NOM and arsenic using low-cost adsorbents. For this purpose, batch adsorption experiments were carried out in synthetic and natural water using pumice, steel slag and red mud as low cost adsorbents.The highest arsenic removal efficiencies obtained with steel slag, pumice and red mud were 95, 95 and 50 %, respectively without the presence of NOM. The results showed that the presence of NOM caused a significant reduction in arsenic adsorption for all tested adsorbents and 20-30% less arsenic removal efficiency was obtained in natural water compared to the removal efficiencies obtained in synthetic water. The maximum adsorption capacities obtained in synthetic water with all tested adsorbents vary between 1.6 -3.05 mgAs/g, while the maximum adsorption capacities obtained in natural water vary between 0.9-1.2 mgAs/g. All these findings indicate that NOM can hinder the uptake of arsenic by all tested adsorbents. Moreover, the arsenic adsorption in natural water were modelled by Langmuir, Freundlich and modified Freundlich. The results showed that the arsenic adsorption data were well fitted by modified Freundlich isotherm with R2 values between 0.87 and 0.90.","PeriodicalId":159867,"journal":{"name":"International Journal of Energy Studies","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133529778","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}

引用次数: 0

Ensuring energy balance for sudden demand changes in smart grids 确保智能电网需求突变时的能量平衡

International Journal of Energy Studies Pub Date : 2023-03-22 DOI: 10.58559/ijes.1266296

Ahmet Karyeyen, N. Çetinkaya

引用次数: 0

EFFECTS OF MATERIAL ON EFFICIENCY IN ALTERNATORS USED IN WIND ENERGY 材料对风能交流发电机效率的影响

International Journal of Energy Studies Pub Date : 2023-03-10 DOI: 10.58559/ijes.1256835

K. Yilmaz, Taner Di̇ndar

{"title":"EFFECTS OF MATERIAL ON EFFICIENCY IN ALTERNATORS USED IN WIND ENERGY","authors":"K. Yilmaz, Taner Di̇ndar","doi":"10.58559/ijes.1256835","DOIUrl":"https://doi.org/10.58559/ijes.1256835","url":null,"abstract":"It is seen that the use of wind energy as a renewable energy source in the world has increased recently. In addition to this, power plants are established for the production of high power electricity and the energy produced is given to the grid. However, in a region far from the urban area, electrical energy can be produced at small power levels. Radial flux permanent magnet alternators are the most widely used to generate electrical energy at small powers. Therefore, in this study, the effect on the efficiency of the materials used in radial flux permanent magnet alternators was investigated. Time savings can be achieved by analyzing the alternators used for the energy to be produced. The analyzes taken from the program contribute to the studies and may cause small deviations in real applications. In our study, considering the B-H characteristics of ferromagnetic materials, the effects of variable stator, rotor and magnet materials on the output performance were examined and comparisons were made by choosing the configuration with the best efficiency as a result of the optimization made. According to the graphical results obtained, time and cost savings were achieved.","PeriodicalId":159867,"journal":{"name":"International Journal of Energy Studies","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124874033","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}

引用次数: 0

Small Hydropower Development in Turkey: An Overview of 2021 土耳其小水电开发:2021年展望

International Journal of Energy Studies Pub Date : 2023-03-10 DOI: 10.58559/ijes.1195975

A. Bobat

引用次数: 0

A comprehensive survey of the urban building energy modeling (UBEM) process and approaches 城市建筑能源建模(UBEM)的过程和方法综述

International Journal of Energy Studies Pub Date : 2023-03-09 DOI: 10.58559/ijes.1228599

M. Yakut, Sinem Esen

{"title":"A comprehensive survey of the urban building energy modeling (UBEM) process and approaches","authors":"M. Yakut, Sinem Esen","doi":"10.58559/ijes.1228599","DOIUrl":"https://doi.org/10.58559/ijes.1228599","url":null,"abstract":"Fossil fuels increase the emission values of greenhouse gases such as CO2 in the atmosphere and cause global warming and climate change. At the same time, fossil fuel reserves are facing depletion in the near future, and energy supply also has an important dimension such as national security and foreign dependency. All these show that turning to renewable energy sources and developing solutions and policies for energy saving has become a necessity both globally and locally. For such reasons, modeling of urban structures, which have a great contribution to energy consumption, and simulating the energy demand on an urban scale are of great importance for the effective use of energy. Research on this has shown that UBEM (Urban Building Energy Modeling) is an effective solution to these problems. However, UBEM contains different technical problems for implementation. Due to its versatility, various concepts related to this field lead to complexity. With this increasing complexity, there is a growing need to compile concepts from a holistic perspective. In this study, it is aimed to create a solution to these challenges. For this purpose, a comprehensive and up-to-date research of various modeling approaches and model creation process used in urban building energy modeling has been conducted. Studies on these approaches are summarized and a systematic review of the literature is made. At the same time, the study is in the nature of guiding and forming the general knowledge level with the basic concepts that should be known to those who will work on UBEM.","PeriodicalId":159867,"journal":{"name":"International Journal of Energy Studies","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117271569","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}

引用次数: 0

Simulation of a PV Module at Different Set-Up and Operating Conditions to Give I-V And P-V Curves PV组件在不同设置和工作条件下的仿真，给出I-V和P-V曲线

International Journal of Energy Studies Pub Date : 2023-02-22 DOI: 10.58559/ijes.1147678

Jamilu Ya’u Muhammad

引用次数: 0