02 اردیبهشت 1403
شعيب خانمحمدي

شعیب خانمحمدی

مرتبه علمی: دانشیار
نشانی: کرمانشاه-بزرگراه امام خمینی(ره) - دانشگاه صنعتی کرمانشاه- دانشکده مهندسی- گروه مکانیک - کدپستی: 6715685420
تحصیلات: دکترای تخصصی / مهندسی مکانیک
تلفن: 0833-8305001
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان
Energy and exergy analyses of dual refrigerant system for liquefaction of natural gas
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
liquefaction of natural gas; LNG; liquefaction; coefficient of performance; COP; exergy destruction; dual refrigerant precooling mixed
پژوهشگران مسعود افرند (نفر اول)، مرتضی سعادت طرقی (نفر دوم)، شعیب خانمحمدی (نفر سوم)

چکیده

Present study proceeds thermodynamic modelling, and analysis of dual refrigerant system for liquefaction of natural gas (LNG) that is one of the most important technologies in producing LNG. Using energy equations pressure, quality, enthalpy, entropy of natural gas and two refrigerants, i.e., methane and propane are specified. The effects of different cycle variables on the thermodynamic performance especially the coefficient of performance (COP) is studied. Using the second law of thermodynamic for the system components, the exergy destruction rates has been found. The exergy analysis results show that heat exchanger I (HX I), heat exchanger II (HX II) and turbine have the highest exergy destruction rate. Furthermore, results indicate that the total exergy destruction rate of studied cycle for generation of 1 kg/s LNG is 2,996 kW. Moreover, energy and exergy analysis show that important parameters such as propane mass flow rate has different effects on the COP and exergy destruction rate.