Thermodynamic Processes Involving Liquefied Natural Gas at the LNG Receiving Terminals / Procesy termodynamiczne z wykorzystaniem skroplonego gazu ziemnego w terminalach odbiorczych LNG

2013 ◽  
Vol 58 (2) ◽  
pp. 349-359 ◽  
Author(s):  
Mariusz Łaciak
Keyword(s):  
Natural Gas ◽  
Gas Phase ◽  
Atmospheric Pressure ◽  
Electricity Generation ◽  
Exergy Analysis ◽  
Liquefied Natural Gas ◽  
Analysis Process ◽  
Common Process ◽  
Liquefied Gas ◽  
Thermodynamic Processes

The increase in demand for natural gas in the world, cause that the production of liquefied natural gas (LNG) and in consequences its regasification becoming more common process related to its transportation. Liquefied gas is transported in the tanks at a temperature of about 111K at atmospheric pressure. The process required to convert LNG from a liquid to a gas phase for further pipeline transport, allows the use of exergy of LNG to various applications, including for electricity generation. Exergy analysis is a well known technique for analyzing irreversible losses in a separate process. It allows to specify the distribution, the source and size of the irreversible losses in energy systems, and thus provide guidelines for energy efficiency. Because both the LNG regasification and liquefaction of natural gas are energy intensive, exergy analysis process is essential for designing highly efficient cryogenic installations.

scholarly journals Management and Usage of Nitrogen Systems on Liquefied Natural Gas (LNG) Carriers

2018 ◽  
Vol 55 (1) ◽  
pp. 219-227
Author(s):  
Renato Ivče ◽  
Igor Rudan ◽  
Mateo Rudan
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Nitrogen Management ◽  
Inert Gas ◽  
General Knowledge ◽  
Specific Knowledge ◽  
Cargo Handling ◽  
Professional Interest ◽  
The Subject ◽  
Liquefied Gas

The importance of liquefied natural gas (LNG) vessels and the technology that enables their operations is steadily growing. Hence, in addition to professional interest, the general public also displays a considerably large interest in this issue. Today LNG carriers belong to the category of the most technologically developed vessels and therefore managing these vessels requires not only the general knowledge but also the specific knowledge relating to their cargo handling systems. To ensure the safe and economical transport of LNG by sea and to minimize the risk of fire or explosion it is necessary to understand the properties of LNG and nitrogen, an inert gas used in all phases of the carriage and transfer of liquefied gas. The subject of this research is the overall process of nitrogen management in daily operations on board LNG carriers. The aim of the research is to explain, evaluate and define the various applications of nitrogen systems on LNG carriers.

Latin America's LNG drive could quickly lose momentum

2016 ◽  
Keyword(s):  
Energy Source ◽  
Natural Gas ◽  
Electricity Generation ◽  
Low Cost ◽  
Gas Storage ◽  
Gas Production ◽  
Liquefied Natural Gas ◽  
Content Type ◽  
Weather Phenomenon ◽  
Gas Balance

Subject Energy diversification efforts. Significance The El Nino weather phenomenon has laid bare the vulnerabilities of South America's dependence on hydropower. Gas has been the primary back-up, and liquefied natural gas (LNG) import capacity a strategic necessity (one which the northern part of the continent lacks). However, a recovery in Argentine gas production could eventually change the region's current gas balance, while the growth of renewables offers a new, indigenous, low-cost energy source. Impacts Investment in LNG import capacity and gas storage will continue. However, facilities face the threat of low utilisation as renewables capacity and domestic gas production increases. As one of the cheapest forms of electricity generation with a large amount of unexploited resource, hydropower will expand. States will gradually look towards other forms of system flexibility and grid resilience.

Pakistan’s regasification capacity will increase

2017 ◽  
Keyword(s):  
Natural Gas ◽  
Atmospheric Pressure ◽  
Liquefied Natural Gas ◽  
Fuel Oil ◽  
Content Type ◽  
Capital Outflows ◽  
Natural Gas Vehicle ◽  
Power Shortages ◽  
Gas Supply

Subject Pakistan's LNG imports and natural gas supply. Significance Pakistan in July claimed it could become one of the top five purchasers of liquefied natural gas (LNG) by 2022. The country is looking to address growing gas demand and reduce capital outflows for fuel oil and diesel imports; regasification facilities are required to convert LNG back to natural gas at atmospheric pressure. Impacts Fewer power shortages would decrease protests, especially prevalent in summer months, over blackouts. Pakistan’s natural gas vehicle sector could see a rejuvenation, curbing gasoline and diesel demand. Increased LNG use in domestic fertiliser production will reduce urea imports.

On Some Thermodynamic Processes Possibly Involved in the Technological Flow of Liquefied Natural Gas

2018 ◽  
Vol 69 (8) ◽  
pp. 1962-1966
Author(s):  
Tudora Cristescu ◽  
Silvian Suditu ◽  
Monica Emanuela Stoica
Keyword(s):  
Natural Gas ◽  
Thermodynamic Properties ◽  
Latent Heat ◽  
Calculation Model ◽  
Liquefied Natural Gas ◽  
Thermal Flow ◽  
Liquid Methane ◽  
Global Increase ◽  
Energetic Solution ◽  
Thermodynamic Processes

A global increase in the usage of LNG is expected in the subsequent years. More and more countries are starting to produce LNG, while others are starting to import it, using this energetic solution as a complementary source. The present paper consists of data and calculation relationships regarding certain thermodynamic properties of liquid methane. Also, it discusses a few case studies concerning some thermodynamic processes possibly involved in the technological flow of liquefied natural gas. A calculation model is provided regarding the thermal flow necessary for methane heating, vapourisation and overheating at an LNG unloading terminal. A calculation relationship is also provided for the evaluation of the specific latent heat of liquid methane vapourisation depending on temperature.

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