Egypt has reviewed plans to deal with the economic impacts of the Russia-Ukraine crisis that the country will possibly face,including on petroleum prices.In recent years,Egypt has raised gasoline prices several times,...Egypt has reviewed plans to deal with the economic impacts of the Russia-Ukraine crisis that the country will possibly face,including on petroleum prices.In recent years,Egypt has raised gasoline prices several times,the last of which was by 25 piastres earlier this month,as per recommendations of Egypt’s Fuel Automatic Pricing Committee held every three months.This comes while the government presses ahead with plans to convert petrol-powered vehicles to run on natural gas,a step that should contribute to reducing the cost of subsidized petroleum products in the state budget.Egypt,which has achieved self-sufficiency in natural gas in 2018,is planning to use its position on Europe’s doorstep to become a major supplier of liquified natural gas(LNG)to the continent,which is transitioning away from other fossil fuels.展开更多
In modern times,worldwide requirements to curb greenhouse gas emissions,and increment in energy demand due to the progress of humanity,have become a serious concern.In such scenarios,the effective and efficient utiliz...In modern times,worldwide requirements to curb greenhouse gas emissions,and increment in energy demand due to the progress of humanity,have become a serious concern.In such scenarios,the effective and efficient utilization of the liquified natural gas(LNG)regasification cold energy(RCE),in the economically and environmentally viable methods,could present a great opportunity in tackling the core issues related to global warming across the world.In this paper,the technologies that are widely used to harness the LNG RCE for electrical power have been reviewed.The systems incorporating,the Rankine cycles,Stirling engines,Kalina cycles,Brayton cycles,Allam cycles,and fuel cells have been considered.Additionally,the economic and environmental studies apart from the thermal studies have also been reviewed.Moreover,the discussion regarding the systems with respect to the regassification pressure of the LNG has also been provided.The aim of this paper is to provide guidelines for the prospective researchers and policy makers in their decision making.展开更多
Motion responses of the floating liquefied natural gas(FLNG)hull and the mooring loads in a 100-year return environmental condition are predicted with the help of the well known coupled dynamic analysis code DeepC.A s...Motion responses of the floating liquefied natural gas(FLNG)hull and the mooring loads in a 100-year return environmental condition are predicted with the help of the well known coupled dynamic analysis code DeepC.A ship-shaped turret-moored FLNG moored by 4×3 chain-polyester-chain lines in 1.5 km depth of water is studied.Two types of turrets such as internal and external turrets,resulting from diferent locations of the turrets,are adopted respectively in the numerical simulations.Motion responses of the FLNG hull and forces of the mooring lines obtained from the internal turret case and external turret case are compared with each other.Significant diferences are obtained.Statistic analysis is also used to analyze the comparison results,and efects of the turret location on the FLNG hydrodynamic characteristics are summed up.The conclusion regarding the hydrodynamic diferences between internal and external turret-moored FLNG systems would provide help for design of the FLNG system.展开更多
This paper analyzes and discusses the prospects for GCC-Russia-China transnational knowledge networks and epistemic communities in natural gas and liquified natural gas(LNG)production and trade.The premise of the arti...This paper analyzes and discusses the prospects for GCC-Russia-China transnational knowledge networks and epistemic communities in natural gas and liquified natural gas(LNG)production and trade.The premise of the article is that transnational knowledge relations between academia,government,business,civil society and wider facilitate political,economic,technological and strategic relations between countries.This article looks at the role and potential of transnational knowledge relations and epistemic communications between the GCC,Russia(focus on Russian Arctic)and China in the field of natural gas and LNG production and trade.In addition,the article will briefly expand on these transnational,transdisciplinary knowledge relations to include Japan,South Korea and other Arctic LNG producers as Norway and Alaska.展开更多
文摘Egypt has reviewed plans to deal with the economic impacts of the Russia-Ukraine crisis that the country will possibly face,including on petroleum prices.In recent years,Egypt has raised gasoline prices several times,the last of which was by 25 piastres earlier this month,as per recommendations of Egypt’s Fuel Automatic Pricing Committee held every three months.This comes while the government presses ahead with plans to convert petrol-powered vehicles to run on natural gas,a step that should contribute to reducing the cost of subsidized petroleum products in the state budget.Egypt,which has achieved self-sufficiency in natural gas in 2018,is planning to use its position on Europe’s doorstep to become a major supplier of liquified natural gas(LNG)to the continent,which is transitioning away from other fossil fuels.
基金the National Research Foundation of Korea(NRF)funded by the Korea government(MSIT)(Grant Nos.2020R1A5A8018822 and 2021R1C1C2009287)the Korea Institute of Energy Technology Evaluation and Planning(KETEP)the Ministry of Trade,Industry and Energy(MOTIE)of the Republic of Korea(No.20223030040120).
文摘In modern times,worldwide requirements to curb greenhouse gas emissions,and increment in energy demand due to the progress of humanity,have become a serious concern.In such scenarios,the effective and efficient utilization of the liquified natural gas(LNG)regasification cold energy(RCE),in the economically and environmentally viable methods,could present a great opportunity in tackling the core issues related to global warming across the world.In this paper,the technologies that are widely used to harness the LNG RCE for electrical power have been reviewed.The systems incorporating,the Rankine cycles,Stirling engines,Kalina cycles,Brayton cycles,Allam cycles,and fuel cells have been considered.Additionally,the economic and environmental studies apart from the thermal studies have also been reviewed.Moreover,the discussion regarding the systems with respect to the regassification pressure of the LNG has also been provided.The aim of this paper is to provide guidelines for the prospective researchers and policy makers in their decision making.
基金the China National Significant Science&Technology Research Program(No.2008ZX05026-006)
文摘Motion responses of the floating liquefied natural gas(FLNG)hull and the mooring loads in a 100-year return environmental condition are predicted with the help of the well known coupled dynamic analysis code DeepC.A ship-shaped turret-moored FLNG moored by 4×3 chain-polyester-chain lines in 1.5 km depth of water is studied.Two types of turrets such as internal and external turrets,resulting from diferent locations of the turrets,are adopted respectively in the numerical simulations.Motion responses of the FLNG hull and forces of the mooring lines obtained from the internal turret case and external turret case are compared with each other.Significant diferences are obtained.Statistic analysis is also used to analyze the comparison results,and efects of the turret location on the FLNG hydrodynamic characteristics are summed up.The conclusion regarding the hydrodynamic diferences between internal and external turret-moored FLNG systems would provide help for design of the FLNG system.
文摘This paper analyzes and discusses the prospects for GCC-Russia-China transnational knowledge networks and epistemic communities in natural gas and liquified natural gas(LNG)production and trade.The premise of the article is that transnational knowledge relations between academia,government,business,civil society and wider facilitate political,economic,technological and strategic relations between countries.This article looks at the role and potential of transnational knowledge relations and epistemic communications between the GCC,Russia(focus on Russian Arctic)and China in the field of natural gas and LNG production and trade.In addition,the article will briefly expand on these transnational,transdisciplinary knowledge relations to include Japan,South Korea and other Arctic LNG producers as Norway and Alaska.