Bachelors / engineering automobiles techniques

Sep 1, 2001 - Aug 4, 2003

Iraq / Baghdad/ Middle Technical University / 2003

Masters / Automobiles and transport - technological

Nov 27, 2012 - Jul 17, 2015

Russia / South – Russian state Polytechnical university / 2015

Heat Transfer, Renewable Energy, IC Engines, Alternative Fuel [lecturer/ Lecturer at Technical Institute - Hawija, Department of Power Mechanics Technologies]

Jun 23, 2007 - Jun 23, 2035

Lecturer at Department of Power Mechanics Technologies

A comprehensive review on the thermal management of solar panels

Jun 30, 2024

Journal Energy Sources

publisher Taylor & Francis

Issue 1

Volume VOL. 46,

There is now a pressing requirement to utilize sustainable energy sources, specifically solar energy, and employ photovoltaic modules for large-scale power generation. This is due to their convenient installation process and environmentally friendly nature. However, it is important to acknowledge that these systems also possess certain limitations. One of the disadvantages of these systems is that the conversion efficiency does not exceed 25% of the value of the incoming radiation. They are also exposed to direct sunlight during installation, which leads to the remaining radiation being absorbed within the panel structure and converted into thermal energy. As a result, the plate temperature rises above the standard temperature, resulting in reduced efficiency. The use of temperature control techniques is essential to ensure proper operation and efficiency, particularly in hot regions. Numerous specialists have undertaken comprehensive research on diverse approaches to improve the effectiveness of solar energy generation systems. This piece presents a comprehensive review of the various cooling technologies that may be used for solar energy systems (PV). The use of water and air cooling, phase-change, and other methods are some of the various passive and active tactics that are included into the cooling system. Subcategories are complicated subcategories that exist inside each category. In addition, the topics that are discussed include heat sinks, convection, and air collectors, as well as the incorporation of PCM, heat pipes, and several other cutting-edge technologies. Each of these methodologies is exemplified with precise graphics and extensively examined and contrasted. Moreover, this work introduces a novel categorization approach for cooling techniques employed in photovoltaic (PV) panels, offering essential direction for future investigations and knowledge for enhancing efficiency.

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Analysis of SI engine operation and emission characteristics with low octane gasoline and ether additive

Mar 2, 2022

Journal International Journal on Energy Conversion

publisher Praise Worthy Prize

Issue ISSN 2281-5295

Volume Vol. 10, N. 2

Abstract – Fuel quality is an important indicator for the efficient operation of SI engine. Gasoline fuel is produced in many countries under specifications that did not meet the standard specifications that negatively impact engine operation efficiency. Hence, in this study, the impact of Methyl tertiary butyl ether addition to local low octane gasoline on the performance of spark ignition engines and exhaust emission characteristics has been investigated. The fuel samples prepared with additive ratio selected by 5%, 10% and 15% in addition to local gasoline as a comparison threshold. Engine test has been performed and the resulted data collected at constant engine load and increasing speed. Study results reveal noticeable improvement in engine brake power and BSFC at medium and high engine speed with MTBE additive and the maximum improvement obtained with the addition of 10% MTBE to local gasoline at 3000 rpm engine speed. Increasing MTBE additive with local gasoline results in reducing HC and CO emission for all ratios and the minimum value of these emissions obtained with 15% MTBE over the whole engine speed with an increase in CO2 emission. Based on the obtained results, introducing MTBE at 10% additive ratio is suitable to improve the engine performance and mitigate the engine emissions compared to local low octane gasoline. Copyright © 2020 Praise Worthy Prize S.r.l. - All rights reserved.

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Theoretical Investigation of the Effect of Mass Flowrate on PTC Performance.

Nov 1, 2021

Journal NTU JOURNAL FOR RENEWABLE ENERGY

publisher NTU JOURNAL FOR RENEWABLE ENERGY

Issue ISSN: 2788-9920

Volume 1, No. 1,2021

Abstract: The objective of this paper is to study the performance of TPC. A theoretical study was conducted to examine the Effect of mass flow on PTC performance Using MATHLAP program. It was done at the Renewable Energy Unit in Hawija, Iraq. Use water as working fluid WF at a mass flow rate of 0.00083.0.0011 0.00138, and 0.00166 Kg/s. The concentration ratio of 10, 14, 18 and 22 are used. This theoretical investigation was carried out by ASHRAE 93-1986 (RA-91). The results indicate that the theoretical efficiency starts at 40% in summer and increases relatively as mass flow increases to a maximum value of 6% in Winter. Moreover, the results demonstrated that efficiency is inversely related to concentration ratio and temperature. The performances of TPC in spring and autumn are convergent.

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Enhancement of SI Engines Performance Operating With Gasoline Fuel Using High Octane Additives from Waste Materials

Mar 25, 2020

Journal AIP Conference Proceedings

publisher Published Online: 25 March 2020

Volume 221325

Abstract. Fuel property is an important indicator for the fuel suitability to utilize in an internal combustion engine. It can influence the combustion efficiency and fuel consumption directly. In this study, investigation of the effect of fusel oil additive with commercial gasoline at different ratios on the properties of fuel blend and SI engine performance based on gasoline fuel as a threshold for comparison. The engine performance test was conducted at increasing speed and constant half load. Study results reveal that fusel oil has a higher density while the blended fuel samples have a density value closed to that of petroleum with a similar trend of change of viscosity. The higher measured octane number indicated for fusel oil with a value of 106 and the lower octane number for petroleum fuel is 86, which is less than that of fusel oil by about 19%. On the other hand, the higher measured energy content indicated with petroleum fuel at a value of 45.5 MJ/kg while the lower energy content for fusel oil of 29.5 MJ/kg which is lower than that of petroleum fuel by about 33%. Moreover, it can be seen that the energy content of blended fuel decreased with increasing fusel oil additive ratio to 5% and 10% respectively. Engine test shows an increase in brake power at low speed of 1200 rpm by 9% and 15% with PF5 and PF10 respectively compared to pure petroleum, which further enhanced with increasing engine speed. Slight variation in BSFC observed with the increasing additive ratio at medium engine speed with less variation at low and high engine speed at lower BSFC for petroleum fuel over the whole engine speed. Finally, significant variation in engine BTE observed with increasing additive ratio in the blend with gasoline, which indicates significant improvement in the fuel combustion efficiency.

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Simulation of turbulent heat transfer augmentation with hybrid nanofluid

Dec 4, 2018

Journal Diyala Journal of Engineering Sciences,

publisher Diyala Journal of Engineering Sciences,

Issue ISSN 1999-8716

Volume Vol. 11,

Abstract Study of heat transfer augmentation with hybrid nanofluid represents a new class of heat transfer augmentation. The CFD model by using commercial software depending on finite volume technique and adopting SIMPLE algorithm is performed. Mixture of Aluminum Nitride (AlN) and alumina (Al2O3) nanoparticles into water as a basefluid is classified as a new class of hybrid nanofluids that can augment heat transfer. The nanofluid volume fraction and Reynolds number are in the range of (1% to 4%) and (5000 to 17000) respectively. The size diameter of nanoparticles and heat flux around a horizontal straight tube are fixed at 30 nm and 5000 w/m2 respectively. The numerical solution has been successfully validated by using an experimental data available in the literature. Results show that combination of AlN - Al2O3 nanoparticles into water basefluid tends to augment significant heat transfer performance.

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Optimum Engine Performance with Waste Cooking Oil Biodiesel-diesel Blended Fuel

Nov 21, 2018

Journal Journal of Advanced Research in Dynamical and Control Systems - JARDCS

publisher Institute of Advanced Scientific Research

Issue 1943-023X

Volume Vol. 10, No.12, 2018

Abstract--- The recent development in the world leads to two series correlated crises, the increasing energy consumption and depletion in conventional fuel sources. Fossil fuels still represent the large share of consumed fuel which has limited sources and available in a certain regions of the world. On the other hand, waste products are widley available and considered the major contributer for air and water pollution. In this study, waste cooking oil biodiesel has been used at increasing ratio from 0% to 50% with 10% increament as a blend with diesel fuel to operate diesel engine. Fuel properties were measured and characterized according to the ASTM fuel standard specifications. Engine test was conducted to evaluate engine performance with increasing biodiesel fuel in the blend. Statistical analysis adopted to evaluate engine operationat different blending ratio and engine speed using Response Surface Method optimization. The results show slight increase of fuel density with noticeable increase in viscosity and drasatic redection in calorific value of the fuel samples with increasing biodiesel ratio in the blend. Fuel blend up to 20% biodiesel meets the blended fuel standard specifications ASTM D7467 for the measured properties. Engine test results show that the optimum engine brake power is 4.4 kW obtained at 20% blend ratio and 2400 rpm. The finding of this study shows that waste cooking oil biodiesel blended fuel up to 20% con be used to operate existing diesel engine without any modifications.

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