Browsing Engineering Journal of Qatar University - [From 1988 TO 2005] by Subject "Energy"

Now showing items 1-9 of 9

    • Analysis of A Screen Type Solar Air Collector Without Transparent Cover 

      Hassab, M. A. ( Qatar University , 1989 , Article)
      The performance of a screen type solar air collector of different uniform mesh sizes and without a glass cover is investigated theoretically. Formulation of simultaneous radiation and convection heat transfer for a semi-steady ...

    • Energy Study of A Gas-Fired Turbo-Generator 

      Okelah, M.R.S. ( Qatar University , 1988 , Article)
      As far as energy utilization is concerned, the performance of a gas turbine-generator combination, depends on some key factors among which are; engine features, methods of utilizing heat energy associated with exhaust ...

    • Heighting Accuracy Of Spot Imagery 

      Diefallah, M. A. M. ( Qatar University , 1991 , Article)
      The SPOT imaging system is the first sensor with stereoscopic capability and global continuous coverage. Stereopairs with overlap and base to height ratio suitable for the extraction of height information with reasonable ...

    • Onset of Convection in a Liquid Film Flowing 

      Hassab, M. A. ( Qatar University , 1990 , Article)
      The thermal instability of a vicsious liquid film flowing down an inclined plane heated from below is studied analytically. The effects of Biot number at the free surface, the inclination, the Prandtl number and the Reynolds ...

    • An Optimum Performance of A Flat-Type Solar Air Heater With A Porous Absorber 

      Hassab, M. A.; Sorour, M. A.; Elewa, F. A. ( Qatar University , 1989 , Article)
      This investigation is concerned with the design and performance of a flat solar air heater in which air flows perpendicular from a vented transparent cover through a porous absorber plate. The design phase involves a ...

    • Performance of Greenhouses in The Arabian Gulf 

      Hassab, M.A.; Tag, I.A. ( Qatar University , 1990 , Article)
      This work is devoted to the gaining of insight into the operation of environmentally controlled greenhouse in hot and humid climates. Field data inside and outside the greenhouse, namely: solar radiation, dry and wet bulb ...

    • The Potential of The Co-Rotating Compressor in Gas Turbine Applications 

      Okelah, M.R.S. ( Qatar University , 1988 , Article)
      The concept of co-rotating axial compressor was conceived primarily as a means of overcoming the inherent rotational speed mismatch between a fan and its driving turbine in moderate to high bypass ratio turbo-fan engines. ...

    • Solar Water Pumping — An Analytical Overview 

      Kamal, W. A. ( Qatar University , 1988 , Article)
      Two basic thermodynamic conversion techniques of solar water pumping are recognized. In the first technique, a high internal energy fluid heated in a solar collector is used to power a conventional heat engine which drives ...

    • 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 ...