Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale
Publish place: Journal of Gaz Technology، Vol: 6، Issue: 1
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JGT-6-1_001
تاریخ نمایه سازی: 29 آبان 1402
Abstract:
In this study a closed nitrogen expansion cycle (Niche) has been simulated with Aspen HYSYS V۸.۴. Energy and exergy analysis were applied to evaluate the process. Results of energy analysis indicated that specific power consumption of this process is ۰.۶۸ kWh/kg LNG. The results of exergy analysis showed that exergy efficiency of Niche LNG is ۳۵.۵۱%. It is concluded there is an interaction between specific power consumption and exergetic efficiency. Moreover, the highest value of exergetic efficiency and irrevsibility belong to compressor (C۳) and gas turbine (E۱). Moreover, this process can be suitable for mini-scale LNG plants.
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Authors
Amirhossein Yazdaninia
Institute of Liquefied Natural Gas (ILNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Ali Vatani
Professor, Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Marzieh Zare
Research & Technology Directorate of National Iranian Gas Company
Mojgan Abbasi
Assistant Professor, Institute of Petroleum Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
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