Subjects -> ENERGY (Total: 414 journals)
    - ELECTRICAL ENERGY (12 journals)
    - ENERGY (252 journals)
    - ENERGY: GENERAL (7 journals)
    - NUCLEAR ENERGY (40 journals)
    - PETROLEUM AND GAS (58 journals)
    - RENEWABLE ENERGY (45 journals)

ENERGY (252 journals)            First | 1 2 | Last

Showing 201 - 400 of 406 Journals sorted alphabetically
Natural Resources     Open Access  
Nature Energy     Hybrid Journal   (Followers: 27)
Nigerian Journal of Technological Research     Full-text available via subscription   (Followers: 1)
Nuclear Data Sheets     Full-text available via subscription  
Nuclear Engineering and Design     Hybrid Journal   (Followers: 16)
Oil and Energy Trends : Annual Statistical Review     Full-text available via subscription  
Oil and Gas Journal     Full-text available via subscription   (Followers: 12)
Open Journal of Energy Efficiency     Open Access   (Followers: 1)
Power Technology and Engineering     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Civil Engineers - Energy     Hybrid Journal   (Followers: 2)
Progress in Energy and Combustion Science     Hybrid Journal   (Followers: 16)
Progress in Nuclear Energy     Hybrid Journal   (Followers: 2)
Protection and Control of Modern Power Systems     Open Access   (Followers: 3)
Radioprotection     Hybrid Journal   (Followers: 1)
Science and Technology for Energy Transition     Open Access   (Followers: 3)
Science and Technology of Nuclear Installations     Open Access   (Followers: 3)
Smart Energy     Open Access  
Smart Grid and Renewable Energy     Open Access   (Followers: 9)
Solar Compass     Open Access   (Followers: 1)
Solar Energy     Hybrid Journal   (Followers: 20)
Solar Energy Advances     Open Access   (Followers: 2)
Solar Energy Materials and Solar Cells     Hybrid Journal   (Followers: 30)
South Pacific Journal of Natural and Applied Sciences     Hybrid Journal  
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
Structural Control and Health Monitoring     Hybrid Journal   (Followers: 6)
Surface Science Reports     Full-text available via subscription   (Followers: 13)
Sustainable Energy     Open Access   (Followers: 2)
Sustainable Energy & Fuels     Hybrid Journal   (Followers: 1)
Sustainable Energy Technologies and Assessments     Full-text available via subscription  
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 4)
Technology and Economics of Smart Grids and Sustainable Energy     Hybrid Journal  
Technology Audit and Production Reserves     Open Access   (Followers: 1)
Turkish Journal of Energy Policy     Open Access  
Unconventional Resources     Open Access  
Universal Journal of Applied Science     Open Access  
Washington and Lee Journal of Energy, Climate, and the Environment     Open Access  
Waste Management     Hybrid Journal   (Followers: 13)
Water International     Hybrid Journal   (Followers: 19)
Wiley Interdisciplinary Reviews : Energy and Environment     Hybrid Journal   (Followers: 8)
Wind Energy     Hybrid Journal   (Followers: 3)
Wind Engineering     Hybrid Journal  
World Oil Trade     Hybrid Journal  

  First | 1 2 | Last

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Turkish Journal of Energy Policy
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2602-4659
Published by DergiPark Homepage  [187 journals]
  • Performance and emission prediction of hydrogen addition to natural gas
           powered engine using 0/1 dimensional thermodynamic simulation

    • Authors: Fatih AKTAŞ
      Abstract: With the increase in global warming, the measures taken by the governments regarding the use of internal combustion engines are also increasing. These measures, on the other hand, encourage the use of alternative fuels, both to reduce emissions and to research less use of petroleum-based fuels such as diesel and gasoline. Natural gas is one of the fuels that has been researched and used as an alternative fuel recently. However, the lower lean limit, high coefficient of variation (COV) of indicated mean effective pressure (IMEP), relatively lower diffusivity, requirement of high ignition energy and high flme quenching distance properties of natural gas compared to gasoline fuel have a limiting effect. However, these properties can be improved with the addition of a certain amount of hydrogen. In this study, a 3-cylinder diesel tractor engine was converted into a spark-ignition engine using natural gas. Then, by adding hydrogen at low rates between 1% and 5% by mass, its effects on performance, combustion characteristics, and emission values were examined. Despite the high compression ratio of the diesel engine, such as 17.5:1, it was observed that the addition of 5% hydrogen did not cause knocking. In addition, brake power (BP), brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), and brake mean effective pressure (BMEP) values improved with increasing hydrogen addition as 11.33%, 7.5%, and 0.49% respectively. In addition, in-cylinder temperature and pressure values increased due to increasing lower heating values and flame speed. While total hydrocarbon (THC) emission values decreased, nitrogen oxide (NOX) and carbon monoxide (CO) emission values increased slightly.
      PubDate: Mon, 27 Jun 2022 00:00:00 +030
       
  • Investigation of optimum external wall insulation thickness of a house two
           different climate regions

    • Authors: Sarah KAZANCI; Ahmet SAMANCI
      Abstract: In this study, a residential single-family house with an area of 100 m2 was modeled utilizing the Design Builder program in order to calculate the optimum insulation thickness of the external wall including 20% window-to-wall ratio (WWR) for two different climate zones Kirkuk, Iraq city as drying hot which showed heating degree day (HDD) and cooling degree day (CDD) rate between (730) and (1700) degrees. Between (2507) and (178) degrees of the year, the heating degree day (HDD) and cooling degree day (CDD) rate were indicated espectively for the Konya, Turkey city as cold climate zone. The results obtained in the cost analysis of the (XPS , EPS, rock wool and glass wool) insulation materials, furthermore, electric was chosen for Kirkuk hot seasons as a energy source as well as selecting natural gas as energy source for Konya cooling seasons and commercially available materials of the two countries were taken into account. The results showed that, the best exterior wall insulation thickness was determined to be Xopt = 7 cm and Xopt = 19 cm, respectively. At Xopt = 9 cm, the greatest rate of XPS for Kirkuk city was roughly 6.7 percent. Xopt = 7 cm and Xopt = 15 cm findings were achieved as a result of the insulation applied to the building components for Konya. Following that, the energy savings were calculated, and an XPS of 8.3 percent was obtained at Xopt = 11 cm. As a consequence, XPS material was determined to be appropriate for two climatic zones. To sum up, XPS material was determined to be ideal for Kirkuk, which has a hot climate, and Konya, which has a cool environment.
      PubDate: Mon, 27 Jun 2022 00:00:00 +030
       
  • Computational study of combustion characteristics and flame stability of a
           cavity-stabilized burner

    • Authors: Junjie CHEN
      Abstract: A fundamental understanding of the stabilization mechanisms of a flame within very small spaces by the cavity method is of both fundamental and practical significance. However, the precise mechanism by which the cavity method generally provides increased flame stability remains unclear and warrants further study. This study relates to the combustion characteristics and flame stability of a micro-structured cavity-stabilized burner. Numerical simulations are conducted to gain insights into burner performance such as temperatures, reaction rates, species concentrations, and flames. The effects of different design parameters on flame stability are investigated. The critica factors affecting combustion characteristics and flame stability are determined. Design recommendations are provided. The results indicate that the inlet velocity of the mixture is a critical factor in assuring flame stability within the cavity-stabilized burner. There is a narrow range of inlet velocities that permit sustained combustion within the cavity-stabilized burner. Fast flows can cause blowout and slow flows can cause extinction. There exists an optimum inlet velocity for greatest flame stability. The combustion is stabilized by recirculation of hot combustion products induced by the cavity structure. The thermal conductivity of the burner walls plays a vital role in flame stability. Improvements in flame stability are achievable by using walls with anisotropic thermal conductivity. Burner dimensions greatly affect flame stability. Burners with large dimensions lead to a delay in flame ignition and may cause blowout. Heat-insulating materials are favored to minimize external heat losses. There are issues of efficiency loss for fuel-rich combustion cases.
      PubDate: Mon, 27 Jun 2022 00:00:00 +030
       
  • Investigating the effects of climate policy uncertainty on the US
           petroleum markets

    • Authors: Mustafa HAMAD AMEEN; Aslı AFŞAR
      Abstract: The uncertainty of climate policy and its impact on the petroleum markets has attracted the attention of many researchers over the past two decades. Many research works have been conducted regarding the reactions of each variable to the other and the present study aims to investigate the effects of climate policy uncertainty on the US petroleum markets by taking the Climate Policy Uncertainty Index (CPU) and the Petroleum Markets EMV tracker data (PEMV) based on monthly data which starts from Jan 2000 to March 2021. We employ multiple tests by using the VAR model to analyze the collected data. First, the results of the Granger causality test show no causality cause between the CPU and PEMV indices. Second, the outcomes of the Impulse response test show only the reactions come to the variables themselves positively but provide no meaning to the shocks of each variable to the other one. Lastly, the results of the variance decomposition test imply that the variables highly lagged with their dynamics which is about 98 percentile for each variable. 
      PubDate: Mon, 27 Jun 2022 00:00:00 +030
       
 
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