Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station
In the winter, a certain LNG receiving terminal operates exclusively with the submerged combustion vaporizer (SCV). However, due to the high operational costs associated with the SCV, a new combined operation scheme utilizing both the SCV and the open rack vaporizer (ORV) has been proposed. First, m...
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2025-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/2/276 |
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| author | Song Cao Tao Luan Pengliang Zuo Xiaolei Si Pu Xie Yingjun Guo |
| author_facet | Song Cao Tao Luan Pengliang Zuo Xiaolei Si Pu Xie Yingjun Guo |
| author_sort | Song Cao |
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| description | In the winter, a certain LNG receiving terminal operates exclusively with the submerged combustion vaporizer (SCV). However, due to the high operational costs associated with the SCV, a new combined operation scheme utilizing both the SCV and the open rack vaporizer (ORV) has been proposed. First, models for the SCV and ORV gasification units were developed in Aspen HYSYS and validated using actual operational parameters. Next, the relationship between the seawater inlet–outlet temperature difference and the minimum seawater flow rate for the ORV was determined, and an optimized seawater pump operation strategy, considering LNG export volumes, was formulated. Additionally, the relationship between the SCV fuel gas flow rate and LNG export volume was analyzed, and a comparison was made between the operating costs of SCV running independently and the combined SCV-ORV operation under winter conditions. The results of the combined operation experiments indicated that at a seawater inlet–outlet temperature difference of 3 °C, the joint operation mode could save costs by 70–77%; at 2.5 °C difference, it saves 60–67%; at 2 °C difference, it saves 45–50%; at 1.5 °C difference, it saves 35–38%; and at 1 °C difference, it saves 20–23%. This approach achieves optimized economic performance for LNG terminal operations. |
| format | Article |
| id | doaj-art-bb6c9593661049ae85e1cf3c8b862514 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Energies |
| spelling | doaj-art-bb6c9593661049ae85e1cf3c8b8625142025-01-24T13:30:52ZengMDPI AGEnergies1996-10732025-01-0118227610.3390/en18020276Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving StationSong Cao0Tao Luan1Pengliang Zuo2Xiaolei Si3Pu Xie4Yingjun Guo5School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050027, ChinaCaofeidian Xintian LNG Co., Ltd., Tangshan 063200, ChinaCaofeidian Xintian LNG Co., Ltd., Tangshan 063200, ChinaCaofeidian Xintian LNG Co., Ltd., Tangshan 063200, ChinaSchool of Information and Intelligent Engineering, Tianjin Renai College, Tianjin 301636, ChinaSchool of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050027, ChinaIn the winter, a certain LNG receiving terminal operates exclusively with the submerged combustion vaporizer (SCV). However, due to the high operational costs associated with the SCV, a new combined operation scheme utilizing both the SCV and the open rack vaporizer (ORV) has been proposed. First, models for the SCV and ORV gasification units were developed in Aspen HYSYS and validated using actual operational parameters. Next, the relationship between the seawater inlet–outlet temperature difference and the minimum seawater flow rate for the ORV was determined, and an optimized seawater pump operation strategy, considering LNG export volumes, was formulated. Additionally, the relationship between the SCV fuel gas flow rate and LNG export volume was analyzed, and a comparison was made between the operating costs of SCV running independently and the combined SCV-ORV operation under winter conditions. The results of the combined operation experiments indicated that at a seawater inlet–outlet temperature difference of 3 °C, the joint operation mode could save costs by 70–77%; at 2.5 °C difference, it saves 60–67%; at 2 °C difference, it saves 45–50%; at 1.5 °C difference, it saves 35–38%; and at 1 °C difference, it saves 20–23%. This approach achieves optimized economic performance for LNG terminal operations.https://www.mdpi.com/1996-1073/18/2/276liquefied natural gasliquefied natural gasopen rack vaporizersubmerged combustion vaporizereconomic optimizationseawater flow optimization |
| spellingShingle | Song Cao Tao Luan Pengliang Zuo Xiaolei Si Pu Xie Yingjun Guo Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station Energies liquefied natural gas liquefied natural gas open rack vaporizer submerged combustion vaporizer economic optimization seawater flow optimization |
| title | Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station |
| title_full | Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station |
| title_fullStr | Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station |
| title_full_unstemmed | Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station |
| title_short | Simulation and Economic Benefit Analysis of Carburetor Combined Transport in Winter at a Liquefied Natural Gas Receiving Station |
| title_sort | simulation and economic benefit analysis of carburetor combined transport in winter at a liquefied natural gas receiving station |
| topic | liquefied natural gas liquefied natural gas open rack vaporizer submerged combustion vaporizer economic optimization seawater flow optimization |
| url | https://www.mdpi.com/1996-1073/18/2/276 |
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