Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system
ObjectiveThe imbalance of renewable energy distribution in China brings significant mismatches between ammonia supply and demand. Since the routes of multi-product pipelines largely align with the supply directions of ammonia energy, converting these pipelines for ammonia transportation enables the...
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Editorial Office of Oil & Gas Storage and Transportation
2025-05-01
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| Series: | You-qi chuyun |
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| Online Access: | https://yqcy.pipechina.com.cn/article/doi/10.6047/j.issn.1000-8241.2025.05.003 |
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| author | Mingyue HUANG Renfu TU Qi LIAO Weilong NI Zhengbing LI Hao ZHANG Bin XU Yongtu LIANG |
| author_facet | Mingyue HUANG Renfu TU Qi LIAO Weilong NI Zhengbing LI Hao ZHANG Bin XU Yongtu LIANG |
| author_sort | Mingyue HUANG |
| collection | DOAJ |
| description | ObjectiveThe imbalance of renewable energy distribution in China brings significant mismatches between ammonia supply and demand. Since the routes of multi-product pipelines largely align with the supply directions of ammonia energy, converting these pipelines for ammonia transportation enables the large-scale and cost-effective redistribution of ammonia energy. MethodsThe MULTIFLASH module, based on OLGA software, was used to calculate the variations in saturated vapor pressure of ammonia with temperature, providing a basis for assessing the state of ammonia. A simulation model for liquid ammonia pipeline transportation was developed, referencing the design parameters of a hilly multi-product pipeline, including pipeline specifications, inter-station distances, topographic relief, transmission capacities, ambient temperatures, and pressure limits at pipeline outlets. The control variable method was employed to compare hydrothermal parameters among typical undulating pipeline segments. The results were utilized to comprehensively evaluate the flow stability and parameter adaptability of this multi-product pipeline system for its transformation to transport liquid ammonia.ResultsIn addition to meeting the inlet and outlet pressure limits at stations, ammonia transportation was successfully conducted in the liquid phase through this hilly pipeline. The variation patterns of hydrothermal parameters under different boundary conditions corresponded with those predicted by the Leapienzon formula and Sukhov formula that accounts for friction heat. The influence of topographical conditions on pressure and temperature was found to be greater than that of boundary conditions. Under varying boundary conditions, the trend in temperature drop amplitude closely mirrored that of pressure drop amplitude, both influenced by topographical factors. This reveals the impact of pressure variations on temperature variations, reflected in increasing temperature drop amplitudes in ascending pipeline segments and decreasing temperature drop amplitudes in descending segments. ConclusionThe research results verify the feasibility of transforming high-head multi-product pipelines for the transportation of liquid ammonia from a pressure control perspective, providing a theoretical basis for the production and operation of transformed pipelines. |
| format | Article |
| id | doaj-art-9af2b4b2f10f4f5eaf74159475a26251 |
| institution | OA Journals |
| issn | 1000-8241 |
| language | zho |
| publishDate | 2025-05-01 |
| publisher | Editorial Office of Oil & Gas Storage and Transportation |
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| series | You-qi chuyun |
| spelling | doaj-art-9af2b4b2f10f4f5eaf74159475a262512025-08-20T02:29:15ZzhoEditorial Office of Oil & Gas Storage and TransportationYou-qi chuyun1000-82412025-05-0144550851910.6047/j.issn.1000-8241.2025.05.003202410021Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission systemMingyue HUANG0Renfu TU1Qi LIAO2Weilong NI3Zhengbing LI4Hao ZHANG5Bin XU6Yongtu LIANG7College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology//National Engineering Research Center for Pipeline SafetyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology//National Engineering Research Center for Pipeline SafetyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology//National Engineering Research Center for Pipeline SafetyPipeChina Southwest Pipeline Co., Ltd.PipeChina Institute of Science and TechnologyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology//National Engineering Research Center for Pipeline SafetyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology//National Engineering Research Center for Pipeline SafetyCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology//National Engineering Research Center for Pipeline SafetyObjectiveThe imbalance of renewable energy distribution in China brings significant mismatches between ammonia supply and demand. Since the routes of multi-product pipelines largely align with the supply directions of ammonia energy, converting these pipelines for ammonia transportation enables the large-scale and cost-effective redistribution of ammonia energy. MethodsThe MULTIFLASH module, based on OLGA software, was used to calculate the variations in saturated vapor pressure of ammonia with temperature, providing a basis for assessing the state of ammonia. A simulation model for liquid ammonia pipeline transportation was developed, referencing the design parameters of a hilly multi-product pipeline, including pipeline specifications, inter-station distances, topographic relief, transmission capacities, ambient temperatures, and pressure limits at pipeline outlets. The control variable method was employed to compare hydrothermal parameters among typical undulating pipeline segments. The results were utilized to comprehensively evaluate the flow stability and parameter adaptability of this multi-product pipeline system for its transformation to transport liquid ammonia.ResultsIn addition to meeting the inlet and outlet pressure limits at stations, ammonia transportation was successfully conducted in the liquid phase through this hilly pipeline. The variation patterns of hydrothermal parameters under different boundary conditions corresponded with those predicted by the Leapienzon formula and Sukhov formula that accounts for friction heat. The influence of topographical conditions on pressure and temperature was found to be greater than that of boundary conditions. Under varying boundary conditions, the trend in temperature drop amplitude closely mirrored that of pressure drop amplitude, both influenced by topographical factors. This reveals the impact of pressure variations on temperature variations, reflected in increasing temperature drop amplitudes in ascending pipeline segments and decreasing temperature drop amplitudes in descending segments. ConclusionThe research results verify the feasibility of transforming high-head multi-product pipelines for the transportation of liquid ammonia from a pressure control perspective, providing a theoretical basis for the production and operation of transformed pipelines.https://yqcy.pipechina.com.cn/article/doi/10.6047/j.issn.1000-8241.2025.05.003multi-product pipelineliquid ammoniaphase controlpressurenumerical simulation |
| spellingShingle | Mingyue HUANG Renfu TU Qi LIAO Weilong NI Zhengbing LI Hao ZHANG Bin XU Yongtu LIANG Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system You-qi chuyun multi-product pipeline liquid ammonia phase control pressure numerical simulation |
| title | Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system |
| title_full | Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system |
| title_fullStr | Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system |
| title_full_unstemmed | Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system |
| title_short | Analysis of parameter adaptability for multi-product pipelines with high heads transformed into liquid ammonia transmission system |
| title_sort | analysis of parameter adaptability for multi product pipelines with high heads transformed into liquid ammonia transmission system |
| topic | multi-product pipeline liquid ammonia phase control pressure numerical simulation |
| url | https://yqcy.pipechina.com.cn/article/doi/10.6047/j.issn.1000-8241.2025.05.003 |
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