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دراسة مفاعل كهروكيمياوي يعمل تحت تاثير انتقال الكتلة لازالة ايونات المعادن == Electrochemical Reactor Simulation for Metal Ion Removal under Mass Transport Controlled Conditions

Author name: اسن قصي ناجي
Supervisor name: Qasim J. Slaiman | Kamal Shakir Abd
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/thesis_14.pdf
University location: Baghdad
First pages:

القيم والتنبؤ من الحرارة الكامنة للتبخر في درجات الحرارة المختلفة للمركبات النقية والمخاليط الثنائية == Evaluation and Prediction of Latent Heat of Vaporization at Various Temperatures for Pure Components and Binary Mixtures

Author name: محمد جبار عجرش
Supervisor name: محمود عمر عبد الله
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_69.pdf
University location: Baghdad
First pages:

تاثير تركيز البوليمرات في المحاليل المائية على الخواص الريولوجية == EFFECT OF CONCENTRATION OF WATER-SOLUBLE POLYMER SOLUTIONS ON RHEOLOGICAL PROPERTIES

Author name: اريج جاسم محمد
Supervisor name: مهند عبد الرزاق
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_55.pdf
University location: Baghdad
First pages:

تاثير قطر الانبوب على تقليل الاعاقة في الجريان المضطرب == EFFECT OF PIPE DIAMETER ON TURBULENT DRAG REDUCTION

Author name: وسام هادي رضا الصفار
Supervisor name: جابر شنشول جمالي
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

تقليل الاعاقة في الجريان المضطرب باستخدام البولي اكريل امايد وصمغ الزانثان : دراسة عملية ونظرية == Turbulent Drag Reduction By Polyacryl Amide And Xanthan Gum, Experimental And Theoretical Investigation

Author name: احمد عدنان عطشان
Supervisor name: جبار شنشول جمالي
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/THESIS_8.pdf
University location: Baghdad
First pages:
Abstract: This work presents an experimental study of the drag - reduction performance of two water - soluble polymers, Polyacrylamide(PAAM) as flexible, linear synthetic polymer and Xanthan Gum(XG) as a rigid polysaccharide from natural resources. The flow loop used consisted of 0.5 O.D. inch straight pipe with a test section of 3 m length. A 0.5 inch O.D. vertical tubing with elbows was also included to compare the drag - reduction behavior between both tubing configurations. Various concentrations of polymeric additive and water flow rates were tested. The results show that the drag - reduction in vertical piping are significantly lower than in straight type for both polymer type. The dragreduction efficiency of Xanthan Gum agent is much lower than polyacrylamide. Higher concentrations of XG about 150 ppm is required to get exactable drag - reduction performance about 12.84% in the straight pipe. While about 40.3% drag - reduction was achieved with about 50 ppm Polyacrylamide with the same conditions. Moreover, the drag - reduction efficiency of XG can be improved by mixing with Polyacrylamide agent at a given conditions.Part of the experimental work was devoted to study the performance of Polyacrylamide as drag - reducing agent with the existence of small amounts of sodium chloride acts as an inhibitor to the ability of the additive, resulting in lower drag - reduction probably due to collapse of PAAM at more compact structure with the addition of sodium chloride as strong ionic salt.Polyacrylamide and Xanthan Gum additive undergo undesirable mechanical degradation with increasing of circulation time, leading to lower drag - reduction performance. The molecular degradation is likely to occur at low additive concentrations and low turbulence flow, in vertical piping, since the polymeric additives are exposed to shear stresses.Further attempt was done in present investigation to find correlations for accurately predicting drag - reduction characteristics of drag - reducing agents, used in published works. A published time scale hypothesis for prediction of drag - reduction values, the friction factor data as a function of the polymer concentration, shear stress, Reynolds number, pipe diameter. The experimental friction factor results were taken from a published work for gas oil with polyisobutylenes. Good agreement between measured and predicted friction factor. Further attempt was made to correlate the mechanical degradation ability by modifying the Kouraush, Williams and Watt (KWW) equation. The experimental data were taken from a published work for Polyethylene Oxide. The modified equation was found to fit experimental data better than the original KWW equation.

معالجة الماء الحاوي على النفط في حقول نفط العراق الجنوبية == Oily Water Treatments For Southern Iraqi Oil Fields

Author name: عقيل شيخة عرفات
Supervisor name: خالد مخلف موسى
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Combined_320.pdf
University location: Baghdad
First pages:
Abstract: عمليات الحفر تنتج كميات كبيرة من الماء الملوث يعرف بالماء المنتج او الماء المنتج من البئر. مختبريا تم التحقق باستخدام Autoclave بحجم لتر واحد مصنوع من مادة الصلب stainless steel لمعالجة الماء المنتج من حقول الرميلة الشمالية والزبير الخطوة الاولى استخدمت م | The oil drilling operations create large quantities of contaminated water known as “Produced Water” (PW), or water that is produced from the well. An experimental investigation was conducted using 1litter stainless steel autoclave to treat the oily water produced from North Rumaila and Zubair oil fields. The first approach was a pretreatment to remove solid particles using sedimentation with and without flocculation. The second approach included studied the effect of pH, pressure, temperature, salinity, operation time, outlet time and RPM. The third approach was investigate the effect of the surfactants (detergents and alcohol) to reduce surface tension, finally, was addition of some sorbents like polypropylene, polyethylene, used plastic and sawdust.The ranges of salinity, pH, pressure and temperature were selected according to the PW conditions which out from dehydrator and desalter (80000 ppm, 6, 3bar and 60°C respectively), the RPM of mixer was selected to satisfy laminar flow, while the time of operation and outlet product represented the minimum residence time in batch reactor and its discharge to choose the minimum design cost. The results showed that the best conditions were : - Pressure =1 bar, temperature =45°C, mixer speed =300 RPM, treating time =15 min and skim time starting =5 minutes. Best additives to reduce surface tension : ethanol volume = 0.05vol %, powder detergent = 400 mg/litter and liquid detergent volume = 0.03vol%. Best sorbents : Sawdust amount addition = 2.5 gm, polypropylene = 4 gm, polyethylene = 3 gm and used plastic = 2.5 gm The results showed that using polymers made a great change in the oil recovery percent (all the oil was recovered).

تقيم كفاءة مزيج مثبط التاكل لمحاكاة مياه التبريد باستخدام القطب الاسطواني الدوار == Evaluation of Corrosion Inhibitors Blend Efficiency For Simulated Cooling Waters Using Rotating Cylinder Electrode

Author name: عبير عبد الخالق القصب
Supervisor name: قاسم جبار سليمان
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: تم بحث كفائة مثبط التاكل لمزيج من نتريت الصوديوم / سداسي فوسفات الصوديوم على تاكل الفولاذ الكربوني في محاكاة انظمة مياه التبريد من خلال فقدان الوزن وتقنية الاستقطاب الكهروكيميائية. شملت الدراسة تاثير درجة الحرارة30، 45، 60 ?م، سرعة الدوران 200، 600، 1000 | The corrosion inhibition action of a blend of sodium nitrite/sodium hexametaphosphate (SN+SHMP) on corrosion of carbon steel in simulated cooling water systems (CWS) has been investigated by weight loss and electrochemical polarization technique. The effects of temperature 30, 45, and 60 oC, rotational velocity 200, 600, and 1000 rpm, and salts concentrations (0.005 N, 0.01 N, 0.03 N, 0.05 N) NaCl + 0.0736 N Na2SO4 on corrosion of carbon steel were studied in the absence and presence of mixed inhibiting blend (SN+SHMP). Also, the effects of inhibitors blend concentrations of 600 ppm, and 800 ppm (SN+SHMP), at temperatures of 30, and 60 oC, and rotational velocity of 200 and 1000 rpm, on corrosion rate of carbon steel were studied using Second - order Rotatable Design (Box - Wilson Design) to identify the significant effects and interaction in performing weight loss studies and corrosion potential approach. Electrochemical polarization measurements were used to study the behavior of carbon steel in different salt concentrations of (CWS) with pH of 7.5 in absence and presence of the inhibiting blend. The results showed that increasing the temperature, rotational velocity, and NaCl salts concentration leads to an increase in the corrosion rate for both uninhibited and inhibited solutions. The regression model (Box - Wilson Design) that has been developed using experimental data was used to verify that the interaction term of temperature with inhibitors blend and the square term of inhibitors blend are significant for corrosion rate in 0.05 N NaCl solution while the main variables are not pronounced. Also, it is found that the corrosion rate decreases with increases in inhibitor blend concentration up to 800 ppm in 0.05 N NaCl solution. Inhibitor blend concentration of 600 ppm is highly effective giving a high efficiency in 0.005, 0.01 and 0.03 N NaCl solutions of 98.5%, 97.7%, and 96% respectively. Electrochemical polarization studies show that increasing the inhibitors blend concentration (SN+SHMP) shifts the corrosion potential to more noble value (more positive), indicating the anodic nature of the inhibiting blend used.

تاكل الفولاذ الكاربوني تحت ظروف الخلط في وسط ثنائي الطور لمحلول ملحي مع زيت الغاز وثنائي اوكسيد الكاربون والسيطرة علية بالحماية الكاثودية == Corrosion of Carbon Steel In Stirred Two Phase Media of Brine - Gas Oil And Brine - CO2 And Prevention By Cathodic Protection

Author name: ساهر محمد عزيز
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Combined_321.pdf
University location: Baghdad
First pages:
Abstract: Corrosion tests of carbon steel (CS) in single and two phase media of two immiscible liquids (CaCO3 solution - gasoil mixture) and liquid - gas (CaCO3 solution - CO2 gas) under different operating conditions of temperature, agitation velocity, phase fractions, gas flow rate, and immersion time were carried out using weight loss method and electrochemical polarization technique. Flat blade disc turbine mixer was used to simulate the two phase flow conditions.The ranges of operating parameters in two immiscible phase tests were agitation velocities of (0 - 1200 rpm), temperature of (25 - 45 oC), (1 - 10 vol %) gas oil. The effect of presence of acids such as HCl and H2SO4 on corrosion rate was also investigated under different conditions.Corrosion rate (iL) measurements in CO2 saturated solution were also attained in different operating conditions of temperatures(25 - 45 oC), agitation velocity (0 - 800 rpm), salts concentrations (2.5 × 10 - 3 to 9.9 × 10 - 3M), CO2 flow rate (0.142 to1.132 m3/h ), and immersion time by determining the limiting current density.The pH values, oxygen solubility, and electrical conductivity of tested solutions were measured under all to interpret the obtained result.The results revealed that increasing agitation velocity and temperature leads to an increase of the corrosion rate in single phase brine solution. The corrosion rate in brine - gasoil mixture is irregularly varied with concentration of gasoil and agitation velocity. The limiting current density in single phase CaCO3 increases with the increase in agitation velocity, concentration of brine, and temperature. The corrosion rate in two phase brine - CO2 mixture decreases with the increase of agitation velocity flow rate of CO2, temperature, and immersion time. The corrosion potential of Carbon steel under various conditions were determined and discussed.Cathodic protection was used to protect carbon steel in brine - CO2 mixture by using zinc as sacrificial anode under different operating conditions of flow rate of CO2, agitation velocity, and temperature. Good corrosion protection efficiency was attained.

اداء الحماية الكاثودية لخطوط الانابيب == Performance of Cathodic Protection For Pipe Lines

Author name: انس ثائر علي
Supervisor name: نصير عبود عيسى الحبوبي
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/ANAS%20THESIS%20.pdf
University location: Baghdad
First pages:
Abstract: ان تاكل الهياكل المعدنية المدفونة في التربة والتي على اتصال مع التربة لفترة طويلة تعتبر مشكلة هندسية واقتصادية كبيرة.في جميع انحاء العالم هنالك الكثير من انابيب النفط والغاز والماء وكابلات الاتصالات وكذلك صهاريج التخزين والمباني والاسسات والعديد من الهيا | The corrosion of metallic structures buried in soils or in contact with soils has long been a serious engineering and economic problem. All over the world millions of kilometers of gas, water, oil pipelines, communication cables, power cables as well as storage tanks, buildings foundations, and many other structures are buried in the soil, suffering from soil corrosion problems which affect mainly the external surfaces of these structures. In many countries pipelines are by far the most important means of hydrocarbon transportation. This applies to the transport of crude, finished products and natural gas.It is an international problem with more structures and materials buried in the soil. The truly international scope of interest of this subject can be seen by the amount of literature and researches in this field. Attempts have been made to overcome this problem by the use of various types of techniques. The most common and applicable technique is cathodic protection.In this research a carbon steel pipe of length 100 cm buried in a wooden box submerged by soil and impressed current cathodic protection system (ICCP).was applied using power supply and electrical closed circuit, several important factors affecting the pipe protection from corrosion has been studied, like Anode position (distance and depth), soil resistivity (wet and dry), condition the pipe (coated and un - coated), distribution of potential and currents along the pipe(cathode) and the amount of current required to achieve cathodic protection.A correlation was achieved to simulate the ranges of parameters and factors affecting Impressed Current Cathodic Protection. Regression of this model to data and results yielded parameter values vary depending on the effect of the same factor.

دراسة ريولوجية تركيبية لمحاليل كاربوكسي مثل سليلوز == Structure Rheology Of Carboxymethyl Cellulose (CMC) Solutions

Author name: مصطفى جعفر نايف
Supervisor name: طالب بهجت عمر
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_64.pdf
University location: Baghdad
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تعزيز انتقال الحرارة باستخدام مسبباب شدة الاضطراب == Enhancement Of Heat Transfer Using Turbulence Promoters

Author name: عباس نوار زناد
Supervisor name: قاسم جبار محمد سليمان
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_65.pdf
University location: Baghdad
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التحقق محاكاتا ومختبريا لانتاج الديزل الحيوي عن طريسق التقطير الدفعي التفاعلي == Simulation And Experiment Investigation For Producing Biodiesel Using Batch Reactive Distillation

Author name: سارة رشيد غايب الكرخي
Supervisor name: ندى بهجت النقا ش
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Simulation%20and%20Experiment%20Investigation%20for%20Producing%20Biodiesel%20Using%20Batch%20Reactive%20Distillation.pdf
University location: Baghdad
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العلاقة بين معامل ناقل الكتلة و سرعة الاحتكاك == The Relation Between Mass Transfer Coefficient And Friction Velocity

Author name: هالة محمد حسين
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/thesis_20.pdf
University location: Baghdad
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التركيب الريولوجي لمحلول البولي اثيلين اوكسايد == Structure Rheology Of Polyethylene Oxide Solution

Author name: استبرق سعد كامل الكرطان
Supervisor name: طالب بهجت عمر
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/THESIS_6.pdf
University location: Baghdad
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انتقال الحرارة من خلال جدار معدن متاكل لمبادل حراري متحد المركز == Heat Transport Through A Corroding Metal Wall Of Concentric Tube Heat Exchanger

Author name: عماد يوسف منصور
Supervisor name: Q. J. M. Slaiman
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Doctorate
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Emad%20Yousif%20Thesis.pdf
University location: Baghdad
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دراسة في ديناميكية المبادل الحراري مزدوج الانابيب == Study On Dynamic Of Doublepipe Heat Exchanger

Author name: منى منصور حسين
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/THESIS_4.pdf
University location: Baghdad
First pages:

وصف الحشوات المكونة من حبيبات كروية احادية ومتعددة الحجوم == CHARACTERIZATION OF SINGLE AND MULTI SIZES SPHERE PACKING

Author name: وقار عبد الواحد عبد النبي
Supervisor name: محمد نصيف لطيف
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_44.pdf
University location: Baghdad
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شبكات المبادلات الحرارية == Heat Exchanger Networks

Author name: ختام علوان عباس
Supervisor name: ندى بهجت النقا ش
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_43.pdf
University location: Baghdad
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وصف لخصائص الحشوات المكونة من حبيبات كروية احادية , ثنائية , وثلاثية الحجم == CHARACTERIZATION OF MONO, BINARY, AND TERNARY SPHERE PACKING

Author name: هناء رياض صالح
Supervisor name: Mohammed N. Latif
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/thesis_13.pdf
University location: Baghdad
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فصل مقطع BTX من المقاطع النفطية == Effect Of Operating Variables On The Adsorption Of Benzene And Toluene Form BTX Fraction

Author name: مهند قادر باكي
Supervisor name: عبد الحليم عبد الكريم محمد
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: English
University location: Baghdad
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المحاكاة الرياضية لمفاعل كهروكيمياوي حشوي مسيل == MATHEMATICAL SIMULATION OF ELECTROCHEMICAL FLUIDIZED BED

Author name: مهند جواد كاظم
Supervisor name: قاسم جبار محمد سليمان
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_47.pdf
University location: Baghdad
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معامل التمدد الحراري لزيوت التزييت == Thermal Expansion Coefficient of Lubricant Oils

Author name: عمر مصطفى حسين
Supervisor name: طالب بهجت | ضياء الدين محمد قاسم
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_42.pdf
University location: Baghdad
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دراسة ظاهرة مزج اثلين كلايكول مع الماء لقياس درجة الانجماد == PHENOMENA OF MIXING ETHYLENE GLYCOL /WATER SYSTEM FOR FREEZING POINT MEASUREMENTS

Author name: شيماء فاضل مجيد الزبيدي
Supervisor name: ضياء الدين محمد | باسم عبيد
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/Thesis_41.pdf
University location: Baghdad
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دراسة العوامل المؤثرة على هبوط الضغط خلال العمود الحشوي == STUDYING THE PARAMETERS AFFECTING THE PRESSURE DROP ACROSS THE PACKED BED

Author name: زينب طالب عبد زيد
Supervisor name: محمد نصيف لطيف
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
Full text from the source: https://nahrainuniv.edu.iq/sites/default/files/THESIS_5.pdf
University location: Baghdad
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تصميم السيطرة الذاية على عمود التقطير == SIMULATION OF INTELLEGENT CONTROL ON DISTILLATION COLUMN

Author name: رؤى فاضل شافي الحياني
Supervisor name: نصير الحبوبي | محمد زكي
General topic: Chemical Engineering
Specific topic: Chemical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Chemical Engineering
Language: Arabic
University location: Baghdad
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