عنوان مقاله :
تجزيه و تحليل و بهينه سازي واحد توليد NGL با استفاده از روش توسعه يافته پل – اگزرژي و الگوريتم تكامل تفاضلي
عنوان به زبان ديگر :
ANALYSIS AND OPTIMIZATION OF THE NGL PLANT USING THE EXTENDED BRIDGE - EXERGY METHOD AND DIFFERENTIAL EVOLUTION ALGORITHM
پديد آورندگان :
صادقيان جهرمي، فريد دانشگاه اصفهان - دانشكده ي مهندسي شيمي , بهشتي، مسعود دانشگاه اصفهان - دانشكده ي مهندسي شيمي
كليدواژه :
تحليل همزمان پل ـ اگزرژي (ETC) , منحني اتلاف انرژي -اگزرژي(EDL) , منحني اتلاف هزينه‌ي انرژي ـ اگزرژي (ECDL) , بهينه‌سازي
چكيده فارسي :
هدف اين مقاله، ارائه‌ي روش‌هاي جديد هدف‌گذاري در سامانه‌هاي فرايندي است كه با توجه به نقاط قوت روش‌هاي تحليلي همزمان انرژي ـ اگزرژي براي سامانه‌هاي حرارتي و شيميايي حاصل مي‌شود. در ادامه روش توسعه‌يافته‌يي به نام پل ـ اگزرژي در دو سطح مختلف براي تحليل سامانه‌هاي فرايندي از نظر انرژي و اگزرژي به صورت همزمان ارائه شده است. خروجي اين
روش توسعه‌يافته‌ي پل ـ اگزرژي روابط جديد و تصحيح شده‌يي براي تحليل همزمان انرژي و اگزرژي است كه منجر به ايجاد منحني انتقال اگزرژي (ETC) براي تجهيزات حرارتي و منحني اتلاف انرژي ـ اگزرژي و منحني اتلاف هزينه‌ي انرژي ـ اگزرژي (EXDL) براي تجهيزات شامل تغيير فشار و تغيير تركيبات شيميايي مي‌شود. به عنوان زمينه‌ي مطالعاتي براي بررسي روش تركيبي پل ـ اگزرژي و الگوريتم بهينه‌سازي فرايند توليد مايعات گاز طبيعي (NGL) انتخاب شده است. در واحد توليد NGL با استفاده از تحليل همزمان پل و اگزرژي در دو سطح و الگوريتم تكامل تفاضلي (DE)، كل هزينه‌هاي واحد به ميزان 814400 دلار در سال كاهش مي‌يابد.
چكيده لاتين :
The purpose of this manyscript includes providing new analysis and optimization
method in process systems which is achieved due to the strengths of the simultaneous analytical methods of energy-exergy for thermal and chemical
systems. In this treatise, it has been tried to with doing a comprehensive
research effort, a new method is proposed to target energy-exergy process
systems with help of other techniques in order to be useful in analyzing and
optimizing process systems. In addition, exergy, exergyeconomic and pinch
methods have been introduced according to the need and importance of relevant
analyzes. In the following, the developed method in the synchronous combination
of Pinch-Exergy called Bridge-Exergy is presented at two different levels for
analyzing the energy and exergy process systems simultaneously. The output of
this developed bridge-exergy method is a new and correlated equation for the
simultaneous analysis of energy and exergy, which it leads to creation of an
Exergy Transmission Curve (ETC) for thermal equipment and an energy exergy destruction curve (EDL) and an energy --- exergy cost destruction curve (ECDL)
for equipment including pressure and composition change. Hereafter using this
method of combining and analyzing the equipment of the process system, by using
the artificial intelligence method called differential evolution algorithm, the optimization and integration of the whole process system are done simultaneously. Finally, based on the developed energy-exergy analysis method,
a new algorithm is introduced and evaluated for the design of optimal process
systems. As a field study for investigating the bridge-exergy combination
method and optimization algorithm, NGL production process has been briefly
investigated and thoroughly analyzed and optimized. In the process of natural
gas separation, using the bridge-exergy combination method and artificial
intelligence method, the differential evolution algorithm, the operating cost
is reduced about 44 % and the annual profit is increased to about 814400
($/year).
عنوان نشريه :
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