MODELING AND OPTIMIZATION OF COAL-BLENO INDICES A THESIS SUBMITTED TO EL-TABBIN INSITITUTE FOR METALLURGICAL STUDIES

الموضوعات

علوم بحتة وطبيعية

العلوم الاجتماعية › العلوم الاقتصادية › الانتاج › الصناعة

الملخص

The coke chemical plant use different kinds of coal for preparing the blend. Burring certain period the definite set of coals is usually used. Using these coals it is possible to reach different coke quality by variation of coal blend composition. The task of coal preparation shop of coke plant is to prepare the blend giving the best quality indexes of coke. The goal of present work is to investigate the relation ship between blend composition and coke properties and to develop the method of blend composition calculation for best quality indexes of coke. Quality, to find the relationship between these indexes and blend composition and to determine optimum composition of the blend from the chosen index point of view. There are a lot of mathematical methods for such kind of task. Under certain conditions of helwan coke chemical plant - when the kinds of coals have been set beforehand the most suitable method of optimum search is steepest ascent with regular simplex designs in the ascent phase. The mentioned method is very simple to carry out and dont ask the complicated mat hermetical calculations. When the local region of the optimum has been reached the description of this so called nearly stationary region is fulfilled. For such description the design on composition - property diagrams is used. The obtained equation gives information about any point of local region and can be used for for casting the result of coking the blend which wasnt coke before. The final product o coke chemical plant is characterized by set of indexes, the main of them are given below m40 - index of strength of coke. M 10- index of bribability / a - ash content of the coke / v. M. Volatile matter content / s - sculpture content but from mathematical point of view the task of optimization requires single optimization parameter though multicriterion case also possible but needs complex methods of solution. Discussion mentioned above indexes which can be as optimization parameter gave the conclusion that on the first stage of investigation m 40 and m10 index can be taken in to consideration the summarized or complex optimization parameter y that is constructed as function of two particular parameters was created as y cop = 0.7 m40 / m 40 - 0.3 / m10 / m10 ( where ) : m40 and m10 - particular parameters of coke quality % m40 , m10 - sample standard deviations of parameters / 0.7 : 0.3 - weights of importance / both weights of importance and deviations were optioned during primary investigations . These complex optimization parameters were used to estimate the result of all trails, after experimental coking of certain blend m40 and m 10 were determined and y com was calculated. At present work we deal with blend of three components x1, x2 and x3 namely, three kind of coals: x 1 - germane x2 - American and x 3 - Russian, that is diagram composition property can be used for such kind of mixture the next relation takes place: where x i > 0 and x I denotes concentration of i - component / q - stands for number of components. Rotation of the simplex around the point in 7 indicates that we have reached the best result with y com = 14.936 and m 40 = 48.33 % m 10 = 6.8 % under the next. Composition of the blend : g 40 % - a 15 % r 45 % we suppose that properties of coke are uninterrupted function tion with suitable accuracy y = bo + b1 + x1 + b2x2 + b3x3 + b12 x1x2 + b 13 x1x3 + b23 x2x3 + b11 x2/ 1 + b 22 x 2 /2 + b 33 x 2/3 finally the model is y com = 13.45 z1 + 14.94 z 2 + 12.82 z3 - 5.3 z1z2 + 2.58 z 1 z3 - 1.32 z2z3

روابط وملفات

التعريف والنوع

رقم الوثيقة

10068

رقم المصدر

121961

رمز المصدر

BK00010068-001

رقم العقد

340

نوع الوسائط

AskZad

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

ورقي

أسماء الملفات

11219610001.pdf

بيانات النشر

ترجمة العنوان

نلنمذجة و تحقيق الامثلية في مؤشرات مزج الفحم - اطروحة مقدمة امعهد التبين للدراسات المعدنية

ألقاب المؤلفين

[{"name_ar":"Samir Hosam Eddin","name_en":"Samir Hosam Eddin","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"محمد رمزي احمد فواز","name_en":"Muhammad Ramzy Ahmed Fawwaz","title_ar":"مؤلف","title_en":"Author"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

MODELING AND OPTIMIZATION OF COAL-BLENO INDICES A THESIS SUBMITTED TO EL-TABBIN INSITITUTE FOR METALLURGICAL STUDIES

المحتوى والصفحات

عدد الصفحات

130

رقم الجزء

0

أبعاد الوثيقة

22 × 30

الموضوعات الرئيسية

العلوم الاجتماعية › العلوم الاقتصادية › الانتاج › الصناعة

كلمات مفتاحية

الصناعة

التصنيف العام

متخصص

إشراف وإعداد

الإشراف

Samir Hosam Eddin

جدول المحتويات

strategy of cok_production technology and coals blend in egyption coking plant
 3
 chapter 2: methodologyof optimization  by experimentation
 33
 chapter 3 :modeling and optimization of bland composition
 63
 conclusion
 99
 references
 101
 appendixes
 104

الاقتباسات الببليوغرافية