Engineering Journal of Qatar University - [From 1988 TO 2005]: Recent submissions

Now showing items 141-160 of 221

    • Potential Use Of Carbide Lime Waste As An Alternative Material To Conventional Hydrated Lime Of Cement-Lime Mortars 

      Al Khaja, Waheeb A. ( Qatar University , 1992 , Article)
      The present study aimed at the possibility of using the carbide lime waste as an alternative material to the conventional lime used for cement-lime mortar. The waste is a by-product obtained in the generation of acetylene ...

    • Flash Point For Binary Mixtures 

      Donaldson, A. B.; Al-Sharafi, Saleh ( Qatar University , 1994 , Article)
      Three flammable binary systems were studied for flash point as a function of liquid mixture composition: 1) decane/dodecane, 2) 0-xylene/cyclohexanol, and 3) 2-propanol/water. The vapor composition was estimated at each ...

    • Performance Of A Cool Thermal Store Filled With Balls Containing Water 

      Hariri, Abdulrahman Salih ( Qatar University , 2001 , Article)
      A cool thermal storage (CTS) system can be integrated with an A/C system in order to reduce power consumption during a period of high demand. Investigator conducted experiments to investigate the performance of a CTS during ...

    • Ceramics As Materials Of Construction 

      Zaki, A; Eteiba, M. B.; Abdelmonem, N.M. ( Qatar University , 1988 , Article)
      This paper attempts to review the limitations for using the important ceramics in contact with corrosive media. Different types of ceramics are included. Corrosion properties of ceramics and their electrical properties are ...

    • The Effect Of Initial Temperature On Burning Velocity Of Methane, Propane, Lpg And Iso Butane - Air Mixtures 

      Hamid, M. N.; Said, Arkan F. ( Qatar University , 2001 , Article)
      In present work, the burning velocity of a fuel - air mixtures varies with equivalence ratio, temperature and number of carbon atoms. Laminar flame speed have been measured experimentally inside a tube using the optical ...

    • Developing Binary Interaction Parameters For Equations Of State 

      Moshfeghian, Mahmood; Maddox, R. N. ( Qatar University , 1991 , Article)
      Binary interaction parameters are routinely developed to improve the accuracy of equation of state estimations for binary mixtures. For a given data set, the numerical value of the vapor-liquid equilibrium constant varies ...

    • Determination Of Petrophysical And Mechanical Properties Interrelationship For Simulated Sands 

      Al Homadhi, E. S.; Hamada, G.M. ( Qatar University , 2003 , Article)
      In the evaluation of a petroleum reserve, it is necessary to determine accurately certain petrophysical properties such as porosity and permeability of the reservoir rocks. These properties are affected by the relevant ...

    • On Improving Communication Software Development Process 

      El Soudani, Magdi M. Said ( Qatar University , 1995 , Article)
      This paper aims to standardize the software development process by making use of the well-established hardware development process. The procedure can be applied to any engineering software development process, but we ...

    • Corrosion Failures: Identification, Diagnosis & Remedies 

      Shawki, G. S. A.; Kandeil, A.Y. ( Qatar University , 1988 , Article)
      This paper deals with the nature, typical surface features and common forms of corrosion. It also reports corrosion rates in various locations and under differing environmental conditions, viz. tropical, marine, urban and ...

    • Control Algorithms Of Digital Automatic Voltage Regulators For Synchronous Generators 

      Badr, M. A. L.; Eteiba, M.B.; El-Zawawi, A.M.O. ( Qatar University , 1990 , Article)
      The main concepts of the application of digital controllers to a power system as automatic voltage regulators are presented in this paper. An experimental study using a physical model of a limited size power system has ...

    • Computer Aids To Analysis Of Semi -Rigid Steel Space Frames 

      Abbas, Fattah K. ( Qatar University , 2000 , Article)
      This work describes the recent development of the semi-rigid connection technique and the application of this method to the analysis of space frame structure. To carry out the above method of analysis accurately and ...

    • Simulation Of Three-Phase Distillation Column Using Bubble Point And Φ-Φ Approach 

      Lashkari, Siamak; Moshfeghian, Mahmood ( Qatar University , 1995 , Article)
      Most of organic compounds are partially miscible in water and due to their solubility criteria split into two liquid phases. So design of equipments that separate two liquid phase systems differ from one liquid phase system ...

    • Study of A Time Dependent Double -Diffusive Salinity Problem 

      Tag, I.A.; Hassab, M.A. ( Qatar University , 1989 , Article)
      The time-dependent, double diffusive stability problem for a horizontal layer of salty water bounded by two rigid isothermal surfaces is analyzed using a linear perturbation technique. Initially, the layer is subjected to ...

    • Unsteady State Two Phase Flow Pressure Drop Calculations 

      Ayatollahi, Shahaboddin ( Qatar University , 1992 , Article)
      A method is presented to calculate unsteady state two phase flow in a gas-liquid line based on a quasi-steady state approach. A computer program for numerical solution of this method was prepared. Results of calculations ...

    • Computer Simulation Of Gas Treating Unit And Comparison With Plant Data 

      Moshfeghian, Mahmood Moshfeghian, Mahmood ( Qatar University , 1998 , Article)
      Predicting the performance of an industrial plant using computer simulation is becoming a common practice. Confirming the effectiveness of computer packages is not so common. The Shahid Hasheminejad Gas Treating Unit (GTU) ...

    • Ultrasonic C-Scan Inspection Of Composite Materials 

      Fahr, A. ( Qatar University , 1992 , Article)
      Ultrasonic technique using an automated C-scan has been established as the primary inspection method for composite materials. In this paper, the principles of ultrasonic inspection, the type of defects that may be generated ...

    • Assessment Of Blending Local And Imported Aggregates On Properties Of Their Asphalt Concrete Mixtures 

      Noureldin, Magdy S. ( Qatar University , 1995 , Article)
      Environmental conditions in the State of Qatar together with lack of good-quality aggregates seem to severely reduce the service lives of constructed pavements. The current practice of road construction agencies in Qatar ...

    • A Computer - Aided Experimental Setup For Studying Sorption And Desorption Kinetics 

      Asfour, Abdel Fattah A. ( Qatar University , 1990 , Article)
      The details of a computer-aided experimental setup are reported in this communication. This set-up produces high-quality data which can be utilized in stuying sorption and desorption kinetics.

    • Hot Ductility Of Directly Cast Steels With Different Carbon Contents 

      Mohamed, Z. ( Qatar University , 1995 , Article)
      Tensile samples of Nb containing steels with different carbon contents have been cast in situ, cooled to test temperatures in the range 800-1000 °C and tested at a strain rate of 3x10 s . The austenite grain sizes of the ...

    • Traffic Generation And Parking Demand Of The Qatar International Squash And Tennis Centre 

      Bartlett, Robert E. ( Qatar University , 1993 , Article)
      In early 1992 the Government of the State of Qatar decided to construct a new squash and tennis centre. Ministry of Municipal Affairs and Agriculture (MMAA) staff made an assessment of the centre's probable traffic generation ...