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EVALUATE AND RECTIFICATE THE PERFORMANCE OF THE SPIRAL PUMP OF THE HOLLY KARBALA SEWAGE TREATMENT STATION
تقييم و تقويم أداء المضخة اللولبية الابتدائية لمحطة معالجة المياه الثقيلة لمدينة كربلاء المقدسة

Author: Aimen Rashad Noor أيمن رشاد نور
Journal: KUFA JOURNAL OF ENGINEERING مجلة الكوفة الهندسية ISSN: 25230018 Year: 2010 Volume: 2 Issue: 1 Pages: 1-17
Publisher: University of Kufa جامعة الكوفة

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Abstract

This paper evaluates the performance of the primary spiral (Archimedes) screw pump in the old sewage treatment station of the holly Karbala. This paper evaluates the pump according to its volumetric flow rate, determines the problems, diagnoses the defects, and finds the solutions. In addition, the paper suggests the optimum design for the pump. The results show a big effect of the side profile, pitch, and radius of the torque tube upon the discharge of the pump.

يقيم البحث أداء المضخة اللولبية (مضخة ارخميدس) الابتدائية في محطة معالجة المياه الثقيلة القديمة لمدينة كربلاء المقدسة, يقييم أدائها من حيث معدل التصريف الحجمي و تحديد المشاكل و تشخيص العيوب و إيجاد الحلول لها. كما و يقدم البحث التصميم الشكلي الأمثل للمضخة. تبين نتائج البحث تأثيرا كبيرا لصفيحة التوجيه و مقدار الخطوة و نصف قطر اسطوانة العزم على التصريف الحجمي للمضخة.


Article
Effects of Ethanol-Gasoline Blends on Exhaust and Noise Emissions from 4-Stroke S.I.Engine

Authors: Maher A.R. Sadiq --- Yassar K. Ali --- Aimen Rashad Noor
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 7 Pages: 1438-1450
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Considering pollution problems and energy crisis today, investigationshave been concentrated on lowering the concentration of toxic components incombustion products and decreasing fuel consumption by using renewablealternative fuels. In the present work, the effect of ethanol addition to gasoline onthe exhaust emissions and noise level has been experimentally investigated atvarious engine loads.Results of the engine test indicated that using ethanol-gasoline blended fuelsincreases the power output of the engine dramatically (up to 50 %). While the COand HC emissions decrease as a result of the leaning effect caused by the ethanoladdition; and the CO2 emission increases because of the improvement ofcombustion. Also, it was noted that the noise level emission increases slightly withthe increase of ethanol content. Finally, the results showed that ethanol can be usedas a supplementary fuel to gasoline in modern spark ignition engines without majorchanges, and it can help to save our environment from toxic pollutants and to savea considerable part of the available oil.

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