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  Subjects -> ENERGY (Total: 266 journals)
    - ENERGY (177 journals)
    - ENERGY: GENERAL (8 journals)
    - NUCLEAR ENERGY (23 journals)
    - PETROLEUM AND GAS (47 journals)
    - WIND ENERGY (11 journals)

ENERGY (177 journals)                  1 2 | Last

Advances in Building Energy Research     Hybrid Journal   (Followers: 11)
Advances in Energy and Power     Open Access   (Followers: 1)
Advances in High Energy Physics     Open Access   (Followers: 12)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 14)
American Journal of Energy Research     Open Access   (Followers: 6)
Annals of Nuclear Energy     Hybrid Journal   (Followers: 7)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 1)
Annual Review of Resource Economics     Full-text available via subscription   (Followers: 10)
Applied Nanoscience     Open Access   (Followers: 9)
Applied Solar Energy     Hybrid Journal   (Followers: 12)
Archives of Thermodynamics     Open Access   (Followers: 4)
Artificial Photosynthesis     Open Access  
Atomic Energy     Hybrid Journal   (Followers: 5)
Atoms for Peace: an International Journal     Hybrid Journal   (Followers: 3)
Biofuels     Hybrid Journal   (Followers: 8)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 5)
Bulletin de droit nucleaire     Full-text available via subscription   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 13)
Canadian Water Resources Journal     Hybrid Journal   (Followers: 20)
Carbon Management     Hybrid Journal   (Followers: 6)
Catalysis for Sustainable Energy     Open Access   (Followers: 2)
CERN courier. International journal of high energy physics     Free  
Chain Reaction     Full-text available via subscription  
Clefs CEA     Full-text available via subscription   (Followers: 1)
Computational Water, Energy, and Environmental Engineering     Open Access   (Followers: 2)
Continental Journal of Renewable Energy     Open Access   (Followers: 11)
Current Sustainable/Renewable Energy Reports     Hybrid Journal   (Followers: 4)
Dams and Reservoirs     Hybrid Journal   (Followers: 3)
Development of Energy Science     Open Access   (Followers: 3)
Distributed Generation & Alternative Energy Journal     Hybrid Journal   (Followers: 1)
E3S Web of Conferences     Open Access  
Economics and Policy of Energy and the Environment     Full-text available via subscription   (Followers: 3)
Electrical and Power Engineering Frontier     Open Access   (Followers: 8)
Electronic Journal of Energy & Environment     Open Access   (Followers: 9)
Energy     Partially Free   (Followers: 24)
Energy & Fuels     Full-text available via subscription   (Followers: 25)
Energy and Buildings     Hybrid Journal   (Followers: 7)
Energy and Environment Research     Open Access   (Followers: 9)
Energy and Environmental Engineering     Open Access  
Energy and Power     Open Access   (Followers: 3)
Energy and Power Engineering     Open Access   (Followers: 10)
Energy Conversion and Management     Hybrid Journal   (Followers: 8)
Energy Efficiency     Hybrid Journal   (Followers: 11)
Energy Harvesting and Systems : Materials, Mechanisms, Circuits and Storage     Hybrid Journal   (Followers: 1)
Energy Journal The     Full-text available via subscription  
Energy Law Journal     Full-text available via subscription  
Energy Policy     Partially Free   (Followers: 48)
Energy Prices and Taxes     Full-text available via subscription   (Followers: 5)
Energy Procedia     Open Access   (Followers: 3)
Energy Research & Social Science     Full-text available via subscription  
Energy Science & Engineering     Open Access   (Followers: 4)
Energy Science and Technology     Open Access   (Followers: 12)
Energy Strategy Reviews     Partially Free   (Followers: 6)
Energy Studies Review     Open Access   (Followers: 4)
Energy Systems     Hybrid Journal   (Followers: 10)
Energy Technology     Partially Free   (Followers: 3)
Energy, Sustainability and Society     Open Access   (Followers: 18)
Environmental Progress & Sustainable Energy     Hybrid Journal   (Followers: 4)
EPJ Photovoltaics     Open Access   (Followers: 1)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Renewable Energy     Full-text available via subscription   (Followers: 1)
Frontiers in Energy     Hybrid Journal   (Followers: 4)
Frontiers in Energy Research     Open Access   (Followers: 1)
Fuel and Energy Abstracts     Full-text available via subscription   (Followers: 5)
Functional Materials Letters     Hybrid Journal   (Followers: 1)
Gcb Bioenergy     Hybrid Journal   (Followers: 3)
Geothermal Energy     Open Access   (Followers: 1)
GeoWorld     Full-text available via subscription   (Followers: 2)
Green     Full-text available via subscription   (Followers: 2)
IEA Electricity Information     Full-text available via subscription   (Followers: 5)
IEA Natural Gas Information     Full-text available via subscription   (Followers: 4)
IEEE Power and Energy     Full-text available via subscription   (Followers: 11)
IEEE Transactions on Energy Conversion     Hybrid Journal   (Followers: 6)
IEEE Transactions on Nuclear Science     Hybrid Journal   (Followers: 7)
IEEE Transactions on Power Systems     Hybrid Journal   (Followers: 10)
IET Power Electronics     Hybrid Journal   (Followers: 7)
Ingeniería Energética     Open Access  
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 6)
International Journal of Alternative Propulsion     Hybrid Journal   (Followers: 1)
International Journal of Ambient Energy     Hybrid Journal   (Followers: 2)
International Journal of Applied Power Engineering     Open Access   (Followers: 2)
International Journal of Clean Coal and Energy     Open Access   (Followers: 4)
International Journal of Critical Infrastructure Protection     Hybrid Journal   (Followers: 5)
International Journal of Electric and Hybrid Vehicles     Hybrid Journal   (Followers: 5)
International Journal of Emerging Electric Power Systems     Full-text available via subscription   (Followers: 5)
International Journal of Emerging Multidisciplinary Fluid Sciences     Full-text available via subscription  
International Journal of Energy and Environmental Engineering     Open Access   (Followers: 2)
International Journal of Energy and Power     Open Access   (Followers: 7)
International Journal of Energy Engineering     Open Access   (Followers: 12)
International Journal of Energy Research     Hybrid Journal   (Followers: 10)
International Journal of Energy Science     Open Access   (Followers: 1)
International Journal of Flow Control     Full-text available via subscription   (Followers: 2)
International Journal of Global Energy Issues     Hybrid Journal   (Followers: 6)
International Journal of Green Energy     Hybrid Journal   (Followers: 6)
International Journal of Hydrogen Energy     Partially Free   (Followers: 10)
International Journal of Marine Energy     Full-text available via subscription   (Followers: 2)
International Journal of Nuclear Desalination     Hybrid Journal   (Followers: 2)
International Journal of Nuclear Energy Science and Technology     Hybrid Journal   (Followers: 2)
International Journal of Nuclear Governance, Economy and Ecology     Hybrid Journal   (Followers: 2)
International Journal of Nuclear Hydrogen Production and Applications     Hybrid Journal   (Followers: 1)

        1 2 | Last

Journal of Energy Technologies and Policy  
   [6 followers]  Follow    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-3232 - ISSN (Online) 2225-0573
   Published by International Institute for Science, Technology and Education (IISTE) Homepage  [30 journals]
  • Acceptance, Operational Challenges and Conceptual Optimization of
           Biodigester System in Embu Prison

    • Authors: Diana Starovoytova Madara, Saul Sitati Namango, Augustine B. Makokha, Edwin Ataro
      Abstract: This research was conducted within the Kenyan context in Embu prison on a pioneering and fully operational, since 2011, biodigester system. After three years of operation it was imperative to assess the functionality of the system and also the acceptance level by the users and beneficiaries. This research was significant as it synthesizes the true-life experiences from Biodigester utilizing rare input-human excreta. The study was a cross-sectional descriptive research which sought to examine the operational practices and challenges of the biodigester, alongside with factors influencing the adoption of biogas technology. To achieve this, the study conducted regular field visits to Embu prison, administered interviews and distributed questionnaires (designed in English and in Kiswahili language). The data was organized, edited, coded and analyzed using the Microsoft Excel and Statistical Package for Social Sciences (SPSS). Response rate of detainees was 76%, while for staff it was 43%. To address the issue of gas accumulation at night hours and fully utilize the potentials of human excreta, the study proposed to incorporate microbial fuel cells (for electricity production). Conceptualization and preliminary design of optimized system was conducted according to fundamental engineering design principles. To select the best alternative design a pair-wise comparison known as the drop and re-vote (D&R) method was used in this study. The study confirmed that biodigester in Embu prison is an appropriate solution to produce clean renewable energy. Therefore it is recommended to pursue and replicate this approach in prisons in other areas and in different public institutions of Kenya. The study also identified several directions for further research; the most important one is to conduct detailed structural design of the proposed configuration including economical evaluation of the system. The results and discussions may be also applicable to other countries or regions with similar conditions. Keywords: biogas, biodigester, human excreta, Kenya.
      Issue No: Vol. 4
       
  • Effects of a Thermal Nonlinear Resistance on the Power Output of the PV
           Cell

    • Authors: P. D. DONGO, A. D. KAPIM, F. B. PELAP
      Abstract: Within the existing approaches aiming to ameliorate the performances of the photovoltaic (PV) cell, we note that the nonlinear behaviour of the PV cell components is not exploited. In this paper, we examine the effects of a thermal nonlinear resistance on the characteristics of a PV cell known as the current-voltage I-V and power-voltage P-V. This thermal nonlinear resistance is constituted of a series resistance whose value varies as a quadratic function of the temperature across it. In the standard test condition and around this proposed model of the PV, analytical study and numerical simulations in MATLAB as well as experimental investigations with Multisim environment are made............
      Issue No: Vol. 4
       
  • ‘Oil Politics’ and Development in Nigeria

    • Authors: EGHWEREE; OGHNERUONAH CHARLES
      Abstract: Discovery of oil in 1956 by Shell and subsequent exploration of same, gave Nigeria the needed leverage to develop but existential realities, say contrary despite the huge oil wealth. In the face of this, there is immense struggle for the control of oil resources by the ruling class that has accentuated internal political dissension due to 'over reliance' on the oil economy. In the midst of this, intense minority struggle for resource space, remain palpable, pitching groups against selves, as a cut-throat struggle for power at the center with often ethnic coloration, remain evident. Consequently, national and regional development question remains largely unanswered in the face of the intriguing oil politics that tilt political power to plan development and actualize same, along strict political interest, dwarfing efforts made by successive administration to achieve positive development outcomes.  This paper addresses the intricate 'oil politics' in Nigeria and how same shape development. KEY WORDS: Oil rents, rent-seeking, corruption, Niger Delta, ethnicity, primordial interest, Flawed federalism
      Issue No: Vol. 4
       
  • Electricity Consumption, Exchange-rebate Facility, and Banning of Imported
           Second-hand Refrigerators: Reviewing an On-going Process

    • Authors: Emmanuel Baffour-Awuah
      Abstract: Second-hand and old refrigerators are relatively not energy-efficient. They also use refrigerants such as chloroflourocarbons and hydroflourochlourocarbons. They therefore cause climate change and ozone-layer depletion. Among these and other reasons was the implementation of the Montreal protocol in 1987. The Multilateral Fund for the Implementation of the Montreal Protocol was therefore established to assist needy nations to facilitate the implementation of the protocol. Ghana therefore qualified for the fund and thereby in March 2013 introduced a rebate programme on refrigerators. Households were invited at will to submit old refrigerators for new ones at subsidized prices. As an on-going process, however, it appears the patronage of the facility is not encouraging. The purpose of the study being qualitative and quantitative was therefore to ascertain the response of the public to the exchange-rebate facility in relation to electricity cost and banning of second-hand refrigerators. Cape Coast Polytechnic in Ghana was used as a case study.  One-hundred-and-twenty questionnaire were administered at a response rate of 95 percent. Interviews were also conducted among seven suppliers and retailers. Stratified and systematic random sampling methods were employed. SPSS Version 17 was used to analyze data. Cross-tabulations and chi-square tests were also utilized in analyzing the data.  It was found that monthly electricity cost per household ranged between 8.00 ($2.49) and GH¢155.00 ($35.74). Only 11% of those using imported second-hand refrigerators had patronized the facility. It is recommended that CEPS and the Energy Commission should intensify their monitoring activities at harbors, national borders and retail shops that still sell imported second-hand refrigerators in the country. Key words: climate change, energy-efficient, ozone-layer 
      Issue No: Vol. 4
       
  • Maximizing Solar Output Power: Load Shedding Design Approach

    • Authors: Morakinyo Adefunminiyi A.
      Abstract: Renewable energy is currently at the centre of meeting the world energy needs. A notable number of offices and home-users have employed the renewable energy technologies, which are usually used for power backup purposes. High cost of generation is the major factor militating against solar power system affordability. Therefore, an effective way of maximizing the limited generated solar power is paramount. This research presents a viable method of minimizing the overall cost of implementing a solar power system by adequate management of the load to be powered. This paper presents a load shedding design approach in maximizing the solar output power usage in meeting the ever dynamic power need in a typical office setting. The estimated cost of implementing the full load design was compared side by side with a proposed load shedding design approach. In addition, the shed loads were carefully considered to ensure the office day to day activities were not hindered. The load shedding design was found to reduce the total effective load of the office complex. It also reduced the total cost of implementing the solar power design to meet a required load by 90.87%. Keywords: Solar Power, Maximize, Load Shedding, Renewable Energy, Full Load
      Issue No: Vol. 4
       
  • Optimization of Loaded Meshed Face Gears Design using Genetic Algorithm

    • Authors: Ram Gopal, Ajay Agarwal, Rajiv Suman
      Abstract: This paper present the design strategy for optimization of loaded meshed face gear set. Genetic algorithms are being widely used for optimization, search and neural network synthesis. A lot of work has been conducted using genetic algorithm for different engineering problems related to scheduling and process planning in industrial engineering, network optimization in computer engineering. The work dissertation deals with the optimization of loaded meshed face gear sets using genetic algorithm. Attention is focused on reducing the pressure of gear set subjected to constraints on the maximum pressure, contact location, pressure at slice 1 and pressure at slice 11. The optimum gear set using Genetic Algorithm calculate the pressure. Keywords:Genetic algorithm, loaded meshed face gear, optimization.
      Issue No: Vol. 4
       
  • Comparative Study of Composite Made from Ensete False Banana Fibres and
           Polyethylene with Block Board

    • Authors: Stephen K. Kimutai, Zachary O. Siagi, Joan J. Kiptarus, Anthony D. Kibet
      Abstract: This paper is an effort to utilize abundant availability of natural fibres and waste plastics for the development of composite materials based on polymer and particles of natural fibres for conservation of natural resources such as forests. Ensete false banana (EFB) fibres were used as reinforcement to obtain composites with melted waste polyethylene bottled as matrix phase. The composites were prepared by means of compression moulding, and then the effects of fibres loading on mechanical properties such as impact strength, flexural strength, and wear resistance were investigated. Water uptake was also studied. It was observed that the flexural modulus, compressive strength and flexural strength of treated EBF reinforced PE increased linearly with increment of fibres loadings. This trend was similar for impact strength where it exhibited a slight reduction at the initial stage but increased later as the fibres loading increased. It was also observed the water absorption increased with increase in fibres loading. Machining operations such as grinding, milling, drilling and cutting can be performed on the composite. The study has demonstrated that the optimum fibres loading for the best performance of the composite achieved was 30 wt%. The composite produced has a high potential as alternative block board materials. Keywords: Ensete false banana, Block board, fibres, plastics waste, composites
      Issue No: Vol. 4
       
  • Using Life Cycle Assessment in Investigating Electricity Generation
           Potential: (By Harnessing Garbage)

    • Authors: Ahmed Abubakar Elwan, Yanuar Z. Arief
      Abstract: Solid waste is a waste that is predominantly domestic garbage. These wastes can be solid or semisolid form, but does not include industrial or hazardous wastes. Energy Recovery from garbage is not a new idea globally but the method of determining the energy content of the waste stream has developed over the period. Life Cycle Assessment (LCA) is a tool used to determine the environmental impact, of any product from its raw material (cradle) stage to finally being discarded (grave) as a waste deposit. LCA can also be useful in identification of effective waste management system and in determining the energy content of a waste stream. For a complete LCA, scenarios have to be created which will aid the studies by comparing results of activities with the base case scenario. For this study, two scenarios were created, the base case scenario and energy recovery scenario. In the Base Case Scenario all the waste generated is taken to landfill. While in the Energy Recovery Scenario energy and material recovery is involved. From the result of the LCA, about 12MW of electricity can be recovered by harnessing the Garbage in UTM. With associated high decrease in environmental emissions from 5 tons of CO2 and 390Kg of deposited goods at the landfills to -0.97 tons of Co2 and no deposited goods because materials can be recovered from the waste that can be recycled. Gabi Software was used for the LCA assessment. Keywords: Scenario, LCA, Landfill, Gabi Software, University Technology Malaysia, energy recovery
      Issue No: Vol. 4
       
  • Application of Hammer Mill as Granulator and Pulveriser for
           Fermented-Pressed Cassava Mash

    • Authors: Wasiu Agunbiade LAMIDI
      Abstract: Hammer mill grated cassava paste, pressed-fermented mash was granulated by hammer mill, HH; granulated conventionally, HB. Similarly, conventionally grated cassava paste, pressed-fermented mash was granulated conventionally, BB; granulated using hammer mill, BH. Each of the parts HH, HB, BB and BH above were replicated into three, each designated HH1. HH2 and HH3 …. BH1, BH2 and BH3 to make 12 samples and 2 x 4 factorial design. Each pulverised was oven dried for moisture contents’ determination on dry basis, also each sample was fried into gaari. Bulk densities and some physical properties of the pulverised and gaari samples were determined and they were subjected to sieving analysis. The results showed that size reduction ratio achieved in all the treatments were done properly and accordingly. Mean values of the coarse, medium and fine particles of the pulverised and gaari samples in all the treatments were statistically different from each other. Significant (p<0.05) differences were observed between the results of weights of cassava flour, gaari and different treatments. Hammer mill grated but granulated and pulverised by conventional method had the highest rank for all the physical properties of gaari samples with lowest fibre content, lowest moisture content and highest bulk density. There were stronger correlations (with higher R2 values) between the different processes and the weights of the cassava flour and gaari so produced per local measure used. The combined processes of hammer mill and conventional BH had the highest 89.1% (medium + fine particles) for gaari while the highest was 86.52% (medium + fine particles) for combination in HB for the pulverised samples. Keywords: fermented cassava mash, gaari, granulated, hammer mill, pressed cassava mash, pulverised
      Issue No: Vol. 4
       
  • Public Acceptability of Personal Carbon Trading in China: an Empirical
           Research

    • Authors: Qijun Xie, Jinqian Wu, Muhammad Shabbir, Yuanguang Fu
      Abstract: The global warming that is caused by a large number of greenhouse gases emissions has been a giant challenge of human society and sustainable development. China is the biggest carbon emissions country in the world. In order to solve this problem, implementation of an innovative policy is necessary. Personal carbon trading (PCT) is latest idea on the subject of new policy to control the carbon emission. But whether a new policy can be implemented, it depends on its public acceptability. In this article we discussed public acceptability of PCT by exploring the influencing factors and its level of acceptance in China. We designed a questionnaire with five aspects to collect data from three main cities of China. We applied ordinal logistic regression model to investigate the factors which influence public acceptability. The pre dominant results show that acceptability is affected by eight factors such as education, income, perceived threat to humans and the environment in the municipality, perceived level of personal carbon emissions, perceived fair, anticipated behavior to save carbon quotas for traveling, infringement of freedom and anticipated behavior to save carbon quotas for selling. Mostly have positive impact on public acceptability except last two factors. Moreover our results do not support the highly acceptance of PCT in China. There is a considerable validation to conduct this study, because empirical evidence—in developing countries—is limited. It is obvious that this dimension of understanding is necessary for promotion of new idea as new effective policy implementation to control the carbon emission. Keywords: Personal carbon trading, personal carbon allowances, carbon emissions, public acceptability, ordered logistic regression, climate change  
      Issue No: Vol. 4
       
  • Comparative Evaluation between Direct Connected and VSC-HVDC Grid
           Connected Wind Farm

    • Authors: Martial Giraneza, Mohamed Tariq E. Kahn
      Abstract: Nowadays, the penetration level of wind power generation plants has reached a high level. The double Fed Induction Generator (DFIG) based wind turbines are the most preferred type, due to their advantages. Following the impact of wind power plant onto power system, they are now requested by the utilities through grid codes to participate to the grid support and stabilization. For the safety of network operations, an evaluation of DFIG grid connection methods is needed to provide a performance platform in grid connection interface choice and grid codes requirement.This paper presents a comparative study of dynamic behavior of two methods of DFIG wind turbine connection to the grid: direct method and the connection through high voltage direct current transmission system (VSC-HVDC), during the fault. Keywords: Mathematical model of DFIG, fault ride-through (FRT)/ low voltage ride-through (LVRT) requirement, impact of FRT/LVRT on wind farm, VSC-HVDC, MATLAB/Simulations  
      Issue No: Vol. 4
       
  • Online System Identification of DC-DC Converter for RFPA

    • Authors: Ahmed Lashin, Ahmed Mahfouz
      Abstract: This paper describes non-parametric system identification of a DC-DC converter based on spectral analysis correlation method. The used technique identifies the open-loop characteristics of a DC-DC converter online while the unit operates in closed-loop. A digital controller is used to perform both the closed-loop control of the converter and to periodically identify the converter by injecting a pseudo-random binary perturbation. Experimental results are provided for an example buck-boost converter to demonstrate accurate identification of the converter control-to-output frequency response. Experimental results have revealed stable operation of the converter during identification while meeting severe transient response requirements. This technique is advantageous for developing wide-input range/wide-output range converters which are vital for RF power amplifiers used in space and telecommunication applications. Keywords: System Identification, Adaptive Control, DC-DC converter, RFPA
      Issue No: Vol. 4
       
 
 
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