Thermal Investigations of Double Pass Solar Air Heater with Two Types of Porous Media of Different Thermal Conductivity
Thermal Investigations of Double Pass Solar Air Heater with Two Types of Porous Media of Different Thermal Conductivity

Jalal M. Jalil; Shrooq J. Ali

Volume 39, 1A , January 2021, , Page 79-88

https://doi.org/10.30684/etj.v39i1A.1704

Abstract
  This study describes an experimental investigation of the thermal efficiency of stainless steel mesh and steel wool as a porous medium in the lower channel of a double pass solar air ...  Read More ...
A Study of Some Mechanical and Physical Properties for Palm Fiber/Polyester Composite
A Study of Some Mechanical and Physical Properties for Palm Fiber/Polyester Composite

Samah M. Hussein

Volume 38, 3B , December 2020, , Page 104-114

https://doi.org/10.30684/etj.v38i3B.598

Abstract
  This research has been done by reinforcing the matrix (unsaturated polyester) resin with natural material (date palm fiber (DPF)). The fibers were exposure to alkali treatment before ...  Read More ...
Manufacturing of Thermal and Acoustic Insulation From (Polymer Blend/Recycled Natural Fibers)
Manufacturing of Thermal and Acoustic Insulation From (Polymer Blend/Recycled Natural Fibers)

Huda. M. khdier; Ahmed Hussein; Wafaa M. Salih

Volume 38, 12A , December 2020, , Page 1801-1807

https://doi.org/10.30684/etj.v38i12A.1509

Abstract
  These works study the characterization of thermal and acoustic insulation behavior of Polymer Blend/Recycled Natural Fibers. Acoustic insulation is an important property in design criterion ...  Read More ...
Recycling of Waste Paraffin Wax by the Addition of SiO2 Nano-Powders to Improve Thermal Conductivity
Recycling of Waste Paraffin Wax by the Addition of SiO2 Nano-Powders to Improve Thermal Conductivity

Aseel B. Al-Zubaidi

Volume 37, 9A , September 2019, , Page 369-373

https://doi.org/10.30684/etj.37.9A.4

Abstract
  Paraffin wax is an important material used in thermal energy storage (TES) systems. The thermal conductivity of the material is an important parameter that decides the degree of exploitation ...  Read More ...
The Influence of Immersion in Different Chemical Solutions on the Mechanical and Physical properties of (Epoxy/Styrene-Butadiene Rubber) Blend Reinforced with Nano Copper Oxide
The Influence of Immersion in Different Chemical Solutions on the Mechanical and Physical properties of (Epoxy/Styrene-Butadiene Rubber) Blend Reinforced with Nano Copper Oxide

Rana M. Salih

Volume 36, 2B , December 2018, , Page 104-109

https://doi.org/10.30684/etj.36.2B.2

Abstract
  The aim of this work was to evaluate some mechanical and physicalproperties of a composite material which consists of (epoxy/styrene-butadienerubber) blend as a matrix, reinforced with ...  Read More ...
Effect of Natural Fibers on Mechanical Properties of Polymer Composites
Effect of Natural Fibers on Mechanical Properties of Polymer Composites

Ruaa H. AbdulRaheem

Volume 36, 10A , October 2018, , Page 1059-1067

https://doi.org/10.30684/etj.36.10A.6

Abstract
  The mechanical behavior of coconut shell (CS) particulate epoxy composites was concentrated on keeping in mind the end goal to create designing materials for modern application. Minute ...  Read More ...
Investigation of Addition Different Fibers on the Performance of Cement Mortar
Investigation of Addition Different Fibers on the Performance of Cement Mortar

Ahmed Al-Ghaban; Hussein Jaber; Aya A. Shaher

Volume 36, 9A , September 2018, , Page 957-965

https://doi.org/10.30684/etj.36.9A.3

Abstract
  This work presents an investigation of possibility incorporate of synthetic fibers (glass, nylon and carbon) at two states (short: 1cm, long: 5cm) effects on the mechanical properties ...  Read More ...
Production of Lightweight Clay Bricks Using Polymer Wastes
Production of Lightweight Clay Bricks Using Polymer Wastes

basil salah mohammed; Sadiq N. Al-Ebrahimy

Volume 36, 8A , August 2018, , Page 823-831

https://doi.org/10.30684/etj.36.8A.1

Abstract
  In this study, different percentages (2, 4, 6, 8, and 10% by weight of the soil) of chopped polymeric (plastic bottles with maximum particle size 2.36 mm and 1.18 mm in addition to ...  Read More ...
Study the Characteristics Thermal and Mechanical for Unsaturated Polyester Resin Forced by Asbestos Fiber
Study the Characteristics Thermal and Mechanical for Unsaturated Polyester Resin Forced by Asbestos Fiber

Zainab H. Mohsein

Volume 36, 3A , March 2018, , Page 282-286

https://doi.org/10.30684/etj.36.3A.6

Abstract
  In this work prepared and study a polymer composite, where use polyester resin with asbestos fiber ratio (5%, 10% and 15%). First study effect of changing reinforcement percentage by ...  Read More ...
Study the Effect of Glass and Carbon Fibers on the Firebrick Properties
Study the Effect of Glass and Carbon Fibers on the Firebrick Properties

H.A. Jaber

Volume 35, 4A , April 2017, , Page 391-398

https://doi.org/10.30684/etj.35.4A.11

Abstract
  This work was carried out to investigate effect of glass fiber (GF) and carbon fiber (CF) on kaolin-clay firebrick properties. GF and CF are considered inorganic fibers with application ...  Read More ...
The Effect of Ferrite Content on the Thermomechanical and Dielectric Strength Properties of Epoxy Composite
The Effect of Ferrite Content on the Thermomechanical and Dielectric Strength Properties of Epoxy Composite

Lamees S. Faiq; Zahraa F. Attiyah

Volume 34, 1A , January 2016, , Page 186-192

https://doi.org/10.30684/etj.34.1A.16

Abstract
  Different concentrations of cadmium ferrite (2%, 5%, 8%, 10% and 15%) were incorporated into epoxy resin. Cadmium ferrite was prepared by conventional ceramic technique. Composites ...  Read More ...
Enhanced thermal conductivity of cooling liquid using nano material's
Enhanced thermal conductivity of cooling liquid using nano material's

Kheria M.Essa; Hashim Zydan Mohammed

Volume 33, 7B , August 2015, , Page 1179-1192

https://doi.org/10.30684/etj.2015.116638

Abstract
  In present work alumina with grain size (50nm )and titanium dioxide with grain size (20nm ) are used tothermal conductivity is tested separately when mixed with water at different percent ...  Read More ...
Experimental Stability and Thermal Characteristics Enhancement Analysis of Water Based Boehmite Nano fluid
Experimental Stability and Thermal Characteristics Enhancement Analysis of Water Based Boehmite Nano fluid

Mohammed Hussein J. Al –Atia; Sarah A. Abed

Volume 33, 7B , August 2015, , Page 1193-1210

https://doi.org/10.30684/etj.2015.116639

Abstract
  In this work attempt was made to formulate water based boehmite (AlOOH) nanofluid in one and two steps methods. Boehmite is the first born alumina phase as prepared by sol gel route ...  Read More ...
Study The Convective Heat Transfer of TiO2 /Water Nanofluid in Heat Exchanger System
Study The Convective Heat Transfer of TiO2 /Water Nanofluid in Heat Exchanger System

Asmaa H. Dhiaa; Majid I. Abdulwahab; S.M. Thahab

Volume 33, 7B , August 2015, , Page 1319-1329

https://doi.org/10.30684/etj.2015.116701

Abstract
  The enhancements of heat transfer coefficient and Nusselt number in a heat exchanger system were achieved by using Titanium-dioxide (TiO2) nanoparticles with an average diameter of ...  Read More ...
Evaluation of Acoustics Insulation and Thermal Conductivity through Walls in Building
Evaluation of Acoustics Insulation and Thermal Conductivity through Walls in Building

Haqi Ismael Qatta

Volume 31, A 6 , June 2013, , Page 1131-1150

https://doi.org/10.30684/etj.31.6A9

Abstract
  Anew type of porous clay bricks is proposed , this research studies the effect of adding industrial wastes admixtures with different percentages on the thermal and acoustics insulation ...  Read More ...
Improvement of The Mechanical and Thermal Properties of Clay Bricks by Using Local Materials in Iraq
Improvement of The Mechanical and Thermal Properties of Clay Bricks by Using Local Materials in Iraq

Haqi Ismael Qatta

Volume 30, Issue 19 , November 2012, , Page 3308-3327

https://doi.org/10.30684/etj.30.19.3

Abstract
  This research studies the effect of adding industrial wastes materials with different percentages on the thermal and mechanical properties of clay bricks . Different types of admixtures ...  Read More ...
Mechanical, Electrical and Thermal Properties of Polypropylene and Polycarbonate Blend Filled with Carbon Black
Mechanical, Electrical and Thermal Properties of Polypropylene and Polycarbonate Blend Filled with Carbon Black

Fadhil Abbas Hummdai

Volume 30, Issue 12 , July 2012, , Page 2076-2086

https://doi.org/10.30684/etj.2012.57257

Abstract
  In this work a composite materials were prepared containing matrix of polymer blend (polypropylene 80% + polycarbonate 20%) reinforced by (carbon black) with different of weight fraction ...  Read More ...
One Parameter Composite Semigroups of Linear Bounded Operators in Strong Operator Topology of Schatten Class Cp
One Parameter Composite Semigroups of Linear Bounded Operators in Strong Operator Topology of Schatten Class Cp

Samir Kasim Hassan; Al-Taie M; Al-Malki Anam; Al-Attar Abeer; Mustafa Khaleel Ismael; Fatema Ahmed Sadeq; Radhi A .Zboon; Jehad R.Kider; Samir K .Hassan; Hussain J. M. Alalkawi; Raad H. Majid; Rawaa A. Alomairy; Luma Abdul Ghani Zghair; Hadia Kadhim J.Al-Ogili; Assifa M. Mohamad; Abbas Sheyaa Alwan; Haider L. Aneed; Assim H Yousif; Salema Sultan Salman; Abbas Hussien Miry; Abduladhem A.Ali; Mohammed Zeki Al-Faiz; Sabah N. mahmood; Khansaa Dawood Selman; Shaymaa Tareq Kadhim

Volume 29, Issue 8 , June 2011, , Page 1463-1470

https://doi.org/10.30684/ etj.29.8.2

Abstract
  For semigroups of linear bounded operators on Hilbert spaces, the problem of being in Cp , 0 Keywords  Read More ...
Manufacture of Light Weight Ceramic Bodies as Thermal Insulator From Local Material
Manufacture of Light Weight Ceramic Bodies as Thermal Insulator From Local Material

Al-Taie M; Al-Malki Anam; Al-Attar Abeer

Volume 29, Issue 8 , June 2011, , Page 1471-1481

https://doi.org/10.30684/ etj.29.8.3

Abstract
  The research work covers a study of the feasibility of producing lightweight ceramic thermal insulation bodies used for lining the furnaces by adding saw dust and AlF3 to the Dewechla ...  Read More ...
Thermal Analysis of High Performance Lightweight Concrete Sandwich Panels
Thermal Analysis of High Performance Lightweight Concrete Sandwich Panels

Wasan I. Khalil; Zain A. Raouf; Husain M.Husain

Volume 28, Issue 21 , October 2010, , Page 6439-6457

https://doi.org/10.30684/etj.28.21.18

Abstract
  This work is concerned with experimental and finite element investigation to determine the temperature distribution in hot weather through the section of the high performance lightweight ...  Read More ...
Insulating Light Weight Aggregate Concrete
Insulating Light Weight Aggregate Concrete
Volume 28, Issue 13 , June 2010, , Page 678-691

https://doi.org/10.30684/etj.28.13.18

Abstract
  The weather in Iraq is hot in summer and cold in winter. Therefore , thethermal insulation is of the main problems facing the engineers working inbuilding and housing sectorThe paper ...  Read More ...
Electrical And Thermal Properties Of Epoxy Resin Filled With Carbon Black
Electrical And Thermal Properties Of Epoxy Resin Filled With Carbon Black

Adnan A. Abdul Razak; Najat j. Salah; Waffa Abdul Kazem

Volume 27, Issue 11 , August 2009, , Page 2223-2232

https://doi.org/10.30684/etj.27.11.5

Abstract
  Thermal and electrical conductivity of an insulating polymer can be achieved bydispersing conducting particles (e.g., metal, carbon black) in the polymer. The resulting materialsare ...  Read More ...
Study of temperature and ultraviolet radiation effect on the values of thermal conductivity of hybrid composite materials
Study of temperature and ultraviolet radiation effect on the values of thermal conductivity of hybrid composite materials

Ali Hassan. Rasan Hathal; Balqis Mohammed Dhiaa Al-dabagh

Volume 27, Issue 9 , June 2009, , Page 302-309

https://doi.org/10.30684/etj.27.9.20

Abstract
  In this research work a hybrid composite material was prepared contains a matrix which is Epoxy resin (EP) natural and fabricated fibers (Kevler fiber + Woven and short glass fiber ...  Read More ...
Study of Thermal Characteristics of a Composite Specimen Experimentally and by Using Finite Element Method
Study of Thermal Characteristics of a Composite Specimen Experimentally and by Using Finite Element Method

Jawad Kadhim Uleiwi; Sura Salim

Volume 26, Issue 4 , April 2008, , Page 429-441

https://doi.org/10.30684/etj.29.4.4

Abstract
  This research deals with the study of the effect of fibers volumefraction and fibers orientation on the thermal conductivity and wall surfacetemperatures for composite specimen in form ...  Read More ...