Simulation and Thermodynamic Analysis of a Closed Cycle Nitrogen Expansion Process for Liquefaction of Natural Gas in Mini-scale
- سال انتشار: 1400
- محل انتشار: مجله تکنولوژی گاز، دوره: 6، شماره: 1
- کد COI اختصاصی: JR_JGT-6-1_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 238
نویسندگان
Institute of Liquefied Natural Gas (ILNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Professor, Institute of Liquefied Natural Gas (I-LNG), School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Research & Technology Directorate of National Iranian Gas Company
Assistant Professor, Institute of Petroleum Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
چکیده
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.کلیدواژه ها
Closed nitrogen expansion Cycle, Exergy Analysis, Specific power consumption, LNGاطلاعات بیشتر در مورد COI
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