Control Structure Design and Dynamic Simulation of Mixed Fluid Cascade Natural Gas Liquefaction Process
Publish place: Journal of Gaz Technology، Vol: 5، Issue: 1
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JGT-5-1_001
تاریخ نمایه سازی: 29 آبان 1402
Abstract:
Mixed fluid cascade natural gas liquefaction process control system is designed and analyzed in this study. The specific energy consumption (SEC) of this process is ۰.۲۶۴۷ kWh/kg LNG. After steady state simulation and sizing the process components, a control structure is designed to control the whole process. In addition, dynamic simulation is carried out and performance of the controllers is investigated. By dynamic simulation, specific energy consumption is reduced to ۰.۲۵۷۴ kWh/kg LNG, which means the designed control structure can stably and accurately control the process. To validate the performance and stability of the control structure, changes in the flow rate and temperature of the feed gas are inflicted as a disturbance to the process.
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Authors
Talieh Ramezani
Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Zahra Nargessi
Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Ali Palizdar
Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Ali Vatani
Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
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