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| Hydraulic transient analysis of airport refueling system |
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LIU Peng1,2,3, GONG Jing1,2,3, LI Xiaoping1,2,3, WANG Yanqing1,2,3, SHEN Qing4, LI Xuguang4
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(1.National Engineering Laboratory for Pipeline Safety, China University of Petroleum(Beijing), Beijing 102249, China;2.MOE Key Laboratory of Petroleum Engineering, China University of Petroleum(Beijing), Beijing 102249, China;3.Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum (Beijing), Beijing 102249, China;4.Beijing Aviation Oil Construction Limited Company, Beijing 100012, China)
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| Abstract: |
| In order to reduce the fluctuation of water hammer and ensure the safe and stable operation of the airport refueling system, a hydraulic simulation model of the airport refueling system was established. The model was based on the actual airport refueling pipeline routing diagram, and the parallel pump units in the oil depot were taken into account. The node pressure method was used for steady-state calculation, and the characteristic line method was adopted for transient simulation. Based on the wave velocity adjustment method, some inertia elements were introduced to carry out the multi-threaded calculation in the form of thread pool compared with the commercial software SPS. The results show that the deviation of the nodal pressure is less than 10 kPa under steady-state conditions, and the deviation of the maximum water hammer pressure is less than 50 kPa under transient conditions, which verifies the accuracy of the calculation. The problem of slow calculation caused by a large number of short pipes is overcome, and the computation speed of the hydraulic simulation of the pipe network is further improved. This method can be applied to pipeline design, operation training, offline simulation and other aspects to ensure the safe operation of the airport refueling system. |
| Key words: apron pipe network transient simulation characteristic line multithreading |
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