scholarly journals Use of alternative energy sources to improve the efficiency of natural gas hydrate technology for gas offshore deposits transportation

2018 ◽  
Vol 12 (2) ◽  
pp. 122-131 ◽  
Author(s):  
L Pedchenko ◽  
◽  
K Niemchenko ◽  
N Pedchenko ◽  
M Pedchenko ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Hydrate ◽  
Alternative Energy ◽  
Energy Sources ◽  
Natural Gas Hydrate ◽  
Alternative Energy Sources

scholarly journals Economic Profitability of a Hybrid Approach to Powering Residual Households from Natural Sources in Two Wind Zones of the Lubuskie Voivodeship in Poland

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6869
Author(s):  
Piotr Kułyk ◽  
Łukasz Augustowski
Keyword(s):  
Natural Gas ◽  
Economic Efficiency ◽  
Alternative Energy ◽  
Hybrid Approach ◽  
Energy Sources ◽  
Natural Sources ◽  
Hybrid Energy ◽  
Alternative Energy Sources ◽  
Stage Of Development ◽  
Current Stage

The research was a response to the search for alternative energy sources and the assessment of their profitability and legitimacy of use. The assessment used combined energy sources in the form of wind, solar, and natural gas energy. The research was carried out in various locations with varying degrees of sunlight and in various wind zones, which was motivated by the adopted strategy of increasing the importance of non-conventional energy sources and reducing greenhouse gas emissions. The evaluation was performed using the Homer Grid software. The studies showed the justification for the use of hybrid energy sources, combining renewable and non-renewable sources, at the current stage of development. In the conditions of the Lubuskie Voivodeship, the level of insolation was more important than the more favourable wind zone in such a model. Higher economic efficiency of the hybrid model was obtained in the southern location, with slightly less favourable conditions for wind installations. At the same time, the investments were economically profitable and allowed for their return in the perspective of at least eleven years, even at current prices.

Role of Alternative Energy Sources: Natural Gas Technology Assessment

2012 ◽  
Author(s):  
Timothy J. Skone ◽  
James Littlefield ◽  
Robert Eckard ◽  
Greg Cooney ◽  
Joe Marriott
Keyword(s):  
Natural Gas ◽  
Technology Assessment ◽  
Alternative Energy ◽  
Energy Sources ◽  
Alternative Energy Sources

Research and Analysis of 30-m Gravity Piston Corer for Natural Gas Hydrate

2020 ◽  
Vol 54 (2) ◽  
pp. 57-68
Author(s):  
Ziqiang Ren ◽  
Jiawang Chen ◽  
Jiamin He ◽  
Hangzhou Wang ◽  
Yuxai Sun ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Alternative Energy ◽  
Storage Conditions ◽  
Outer Diameter ◽  
Natural Gas Hydrate ◽  
Piston Corer ◽  
Finite Element Software ◽  
Sampling Process

AbstractThe use of natural gas hydrate as a strategic alternative energy has increasingly attracted the attention of researchers in related fields. To study the properties of natural gas hydrate, however, obtaining the cores under in-situ pressure is a prerequisite because the cores are under particular combinations of high-pressure and low-temperature storage conditions. This article mainly presents the mechanism of a gravity piston corer in acquiring the pressure core of natural gas hydrate (up to 30 m long). The sampling theoretical model is established, and the corer's motion equation is thereafter derived. Based on the theoretical model, the penetration process of the gravity piston corer into the submarine sediment is analyzed. The weight, inner diameter, outer diameter, and initial speed, which are factors affecting the sampling process, are comprehensively elaborated. Additionally, the sampling process is numerically simulated using ABAQUS finite element software. It is found that the soil and pipe are influenced back by their coupling action, thus affording theoretical and numerical bases for the design and installation of a seabed operation structure. In its verification deployment in the South China Sea, the corer was operated numerous times at different depths; it successfully extracted pressure cores of natural gas hydrate. The theory and sea trails employed in this study are anticipated to support further research on abyssal pressure core corers.

Research Status and Trend of Natural Gas Hydrate in China

2014 ◽  
Vol 978 ◽  
pp. 165-168 ◽  
Author(s):  
Rong Huo ◽  
Kai Bo Duan
Keyword(s):  
Natural Gas ◽  
Gas Hydrate ◽  
Alternative Energy ◽  
Energy Resource ◽  
Clean Energy ◽  
Development Trend ◽  
Research Progress ◽  
Natural Gas Hydrate ◽  
Environment Quality ◽  
Further Development

With the further development of national economy, people have become more concerned about the environment quality. Especially in recent years, due to the frequent occurrence of hazy weather, there has been a growing demand for clean energy [Fig. 1]. As one kind of non-conventional energy, natural gas hydrate, featured by large reserves and relatively clean products of combustion, is considered by the scientific community to be an alternative energy resource in replacement of coal and petroleum. This paper gives a brief introduction of the research progress of natural gas hydrate both at home and abroad, presents the research results and the obstacles in the next step to be taken for China, and then looks into the future development trend.

scholarly journals Advantages of biomass compared to traditional fuels

2020 ◽  
Vol 11 (2) ◽  
pp. 96-104
Author(s):  
L. Stepasyuk ◽  
◽  
O. Nahorna ◽  
Keyword(s):  
Natural Gas ◽  
Alternative Energy ◽  
Oil And Gas ◽  
Private Enterprise ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Energy Sources ◽  
Energy Potential ◽  
Alternative Energy Sources ◽  
The Developed Countries

Given Ukraine's high dependence on imported energy, primarily natural gas, and the availability of great biomass potential, it has been proven that bioenergy is one of the strategic directions of the sector's development in renewable energy sources. It is determined that the pace of bioenergy development in Ukraine still lags significantly behind European ones. It is established, that in the developed countries of the world use of biomass as a source of energy continues to play an important role because of a significant increase in prices for oil and gas, as well as the growing demand for protection of the environment. Therefore, the introduction of modern technologies for continuous energy production from biomass is an important condition for the solution of problems of supply of energy and prevent degradation of the environment. The possibility of using biofuels in the Kyiv region is proved, the investment attractiveness of this region as a source of thermal energy is revealed. The methodical approach to estimating the theoretical potential of waste due to the use of alternative energy sources is substantiated. The theoretical energy potential of the biomass of by-products of agricultural crops of private enterprise "Sosnova" was assessed, which made it possible to determine the prospects of an agricultural enterprise in the energy supply of the Kyiv region at the expense of biofuels. According to the generally accepted method, the theoretical energy potential of straw and vegetable waste of private enterprise "Sosnova" was calculated, which in the market turnover in 2019 amounted to 8392 tons of oil equivalent. It was determined that the predominant type of biomass in the studied enterprise were corn stalks and wheat straw. On the example of the object of the school, which is located near the investigated enterprise, the calculation of savings on heating by replacing the traditional type of fuel (natural gas) with biofuel. The calculations show that due to biofuels the company can provide 28% of the school's need for the heating season. The savings will be - 60.6 thousand UAH and its use allow you to save about 43% of fuel annually.

International competition for oil and natural gas and its impact on international relations

2019 ◽  
Vol 1 (1) ◽  
pp. 86
Author(s):  
Harith Qahtan Abdullah ◽  
Muthanna Faiq Meri
Keyword(s):  
Natural Gas ◽  
International Relations ◽  
Global Economy ◽  
Alternative Energy ◽  
International Competition ◽  
Energy Sources ◽  
Industrial Countries ◽  
Alternative Energy Sources ◽  
Oil And Natural Gas ◽  
Investment Process

Energy sources Oil and natural gas are of great importance in international competition and its impact on international relations, as well as the importance of oil and natural gas in maintaining the position of countries in the hegemony and the global economy as well as the level of economic development. Which calls on the major economic powers to pay attention to this type of energy sources and try to obtain more, whether through bilateral economic agreements and attention to the investment process or through wars, as happened in the US war on Iraq in 2003, which indicates the importance of obtaining On oil in various ways and push the international forces to compete for this vital product, especially in light of the inability of alternative energy sources to compensate oil in industries and at least to reduce the importance of consuming countries by this on the one hand, and on the other hand, the rise in the price of global markets made The producing countries are of importance to the industrial countries, and in maintaining access roads without obstacles or problems that may hinder their arrival, creating another economic crisis in light of the economic and financial crises witnessed by the global economic system

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