Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering
This study focus on the optimal time limit of ship-to-ship (STS) liquid natural gas (LNG) bunkering by dynamic simulation. Based on this, a mathematical model for calculating the boil-off gas (BOG) amount was developed. With respect to the modeling of the study, the diameter of the bunkering line is...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/6/1130 |
| _version_ | 1818014994384551936 |
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| author | Yude Shao Yoonhyeok Lee Hokeun Kang |
| author_facet | Yude Shao Yoonhyeok Lee Hokeun Kang |
| author_sort | Yude Shao |
| collection | DOAJ |
| description | This study focus on the optimal time limit of ship-to-ship (STS) liquid natural gas (LNG) bunkering by dynamic simulation. Based on this, a mathematical model for calculating the boil-off gas (BOG) amount was developed. With respect to the modeling of the study, the diameter of the bunkering line is set as 8 inch while that of the BOG return pipeline is set as 4 inch to satisfy the pressure of the receiving ship and BOG generation. The capacities of the cargo tank and fuel tank for bunkering and receiving ships are set as 4538 m<sup>3</sup> and 700 m<sup>3</sup>, respectively. The results indicated that the BOG amount with different LNG bunkering time limit is variable. The BOG flow rate varies inversely with respect to the bunkering time limit after 20 min. Additionally, it is necessary to control the bunkering time within 120 min since additional BOG is generated when the capacity of the pump exceeds 100,000 kg/h, and thus the tank pressure difference between bunkering and receiving ship may be reduced. It is believed that the results of the research could provide feasible assistance for STS LNG bunkering for the ports, and could give a specific guideline for the amount of the BOG generation. |
| first_indexed | 2024-04-14T06:52:15Z |
| format | Article |
| id | doaj.art-4248367b3f334f39a84000efa0f61a0d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:52:15Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4248367b3f334f39a84000efa0f61a0d2022-12-22T02:07:00ZengMDPI AGEnergies1996-10732019-03-01126113010.3390/en12061130en12061130Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas BunkeringYude Shao0Yoonhyeok Lee1Hokeun Kang2Division of Marine System Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-Gu, Busan 49112, KoreaDivision of Marine System Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-Gu, Busan 49112, KoreaDivision of Marine System Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-Gu, Busan 49112, KoreaThis study focus on the optimal time limit of ship-to-ship (STS) liquid natural gas (LNG) bunkering by dynamic simulation. Based on this, a mathematical model for calculating the boil-off gas (BOG) amount was developed. With respect to the modeling of the study, the diameter of the bunkering line is set as 8 inch while that of the BOG return pipeline is set as 4 inch to satisfy the pressure of the receiving ship and BOG generation. The capacities of the cargo tank and fuel tank for bunkering and receiving ships are set as 4538 m<sup>3</sup> and 700 m<sup>3</sup>, respectively. The results indicated that the BOG amount with different LNG bunkering time limit is variable. The BOG flow rate varies inversely with respect to the bunkering time limit after 20 min. Additionally, it is necessary to control the bunkering time within 120 min since additional BOG is generated when the capacity of the pump exceeds 100,000 kg/h, and thus the tank pressure difference between bunkering and receiving ship may be reduced. It is believed that the results of the research could provide feasible assistance for STS LNG bunkering for the ports, and could give a specific guideline for the amount of the BOG generation.https://www.mdpi.com/1996-1073/12/6/1130liquefied natural gasgas fueled shipship-to-ship bunkeringboil-off gasbunkering time limitdynamic simulation |
| spellingShingle | Yude Shao Yoonhyeok Lee Hokeun Kang Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering Energies liquefied natural gas gas fueled ship ship-to-ship bunkering boil-off gas bunkering time limit dynamic simulation |
| title | Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering |
| title_full | Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering |
| title_fullStr | Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering |
| title_full_unstemmed | Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering |
| title_short | Dynamic Optimization of Boil-Off Gas Generation for Different Time Limits in Liquid Natural Gas Bunkering |
| title_sort | dynamic optimization of boil off gas generation for different time limits in liquid natural gas bunkering |
| topic | liquefied natural gas gas fueled ship ship-to-ship bunkering boil-off gas bunkering time limit dynamic simulation |
| url | https://www.mdpi.com/1996-1073/12/6/1130 |
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