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BOG ventilation and combustion in re-liquefaction plants of LNG carriers

2014 Oceans - St. John's, 2014
A liquefied natural gas (LNG) carrier is designed to transport LNG over a long distance. During transportation, the leakage of boil-off gas (BOG) along with poor ventilation can pose an explosion risk. The traditional method for dealing with the BOG is to burn the gas to power the ship.
null Xin Cheng, Azizur Rahman
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Re-liquefaction resistance of lightly cemented sands

Canadian Geotechnical Journal, 2022
The re-liquefaction resistance of cemented sands under multiple liquefaction events such as pre-shock, main-shock, and after-shock earthquakes is a complex phenomenon because the response may alter due to bond breakage. A series of multistage liquefaction–re-consolidation soil element tests under undrained stress-controlled cyclic loading condition ...
Habib Rasouli, Behzad Fatahi, Sanjay Nimbalkar   +2 more
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Ship power plant with re-liquefaction installation for tankers transporting hydrogen

Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova, 2023
The use of hydrogen as a fuel for tankers carrying liquefied hydrogen is discussed in the paper. As a solution to the problem of the world industry decarbonization, the possibility of competitive use of hydrogen as a fuel on sea tankers transporting liquefied hydrogen over long distances is discussed.
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Effects of impurities on re-liquefaction system of liquefied CO2 transport ship for CCS

International Journal of Greenhouse Gas Control, 2015
Abstract For EOR and EGR in the CCS, CO2 must be captured from large-scale CO2 emission sources like power plants, and transported to depleting oil and gas wells to maintain the reservoir pressure and enhance the recovery rate. To achieve this, CO2 should be transported over long distances from the emission sources of developed countries to oil and ...
Sang Hee Jeon, Min Soo Kim
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Thermodynamic analysis of hydrocarbon refrigerants-based ethylene BOG re-liquefaction system

Journal of Marine Science and Application, 2016
The present study aims to make a thermodynamic analysis of an ethylene cascade re-liquefaction system that consists of the following two subsystems: a liquefaction cycle using ethylene as the working fluid and a refrigeration cycle operating with a hydrocarbon refrigerant.
Boumedienne M. Beladjine, Ahmed Ouadha, Yacine Addad   +2 more
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CPT-based analysis of liquefaction and re-liquefaction following the Canterbury earthquake sequence

Soil Dynamics and Earthquake Engineering, 2015
Abstract The Canterbury region experienced widespread damage due to liquefaction induced by seismic shaking during the 4 September 2010 earthquake and the large aftershocks that followed, notably those that occurred on 22 February, 13 June and 23 December 2011. Following the 2010 earthquake, the Earthquake Commission directed a thorough investigation
J.J. Lees, R.H. Ballagh, R.P. Orense, S. van Ballegooy   +3 more
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Multi-objective optimization of a joule cycle for re-liquefaction of the Liquefied Natural Gas

Applied Energy, 2011
A LNG re-liquefaction plant is optimized with a multi-objective approach which simultaneously considers exergetic and exergoeconomic objectives. In this regard, optimization is performed in order to maximize the exergetic efficiency of plant and minimize the unit cost of the system product (refrigeration effect), simultaneously.
Hoseyn Sayyaadi, M. Babaelahi
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Comparative study of boil-off gas re-liquefaction processes for liquid ethylene vessels

Journal of Marine Science and Technology, 2018
A re-liquefaction plant is essential for a liquid ethylene gas (LEG) vessel to liquefy the boil-off gas (BOG) and return it to the cargo tank. In this study, three potential BOG re-liquefaction processes for LEG vessels have been compared in terms of coefficient of performance (COP) and exergy efficiency.
Hongbo Tan, Yang Zhang, Siyu Shan, Qingxuan Zhao   +3 more
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Thermoeconomic optimization of a cryogenic refrigeration cycle for re-liquefaction of the LNG boil-off gas

International Journal of Refrigeration, 2010
The development of the liquefaction process for the Liquefied Natural Gas (LNG) boil-off re-liquefaction plants will be addressed to provide an environmentally friendly and cost effective solution for the gas transportation. In this manner, onboard boil-off gas (BOG) re-liquefaction system as a cryogenic refrigeration cycle is utilized in order to re ...
Hoseyn Sayyaadi, M. Babaelahi
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Optimization and comparison of boiling-off gas re-liquefaction processes for liquid ethylene vessels

2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA), 2016
Liquid Ethylene Gas (LEG), which is stored at − 103.7 °C and 0.1 MPa, is usually transported by vessels with a vacuum insulated tank over oceans and lakes, or along rivers. A part of LEG would be vaporized into Boil-Off Gas (BOG) due to the inevitable heat leakage. To guarantee the vessels safety, an on board re-liquefaction plant is widely equipped to
Hongbo Tan, Wenjian Cai, Qing-guo Wang, Nannan Sun   +3 more
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