Browsing by Author "Hassab, M.A."

Now showing items 1-6 of 6

    • 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 ...

    • 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 ...

    • Solidification Of Steel Billets In Continuous Casting 

      Kandeil, A.Y.; Tag, I.A.; Hassab, M.A. ( Qatar University , 1991 , Article)
      For practical operation, it is necessary to know how the solidification of liquid steel progresses i.e. when and where a strand has completely solidified. Decisions on, the casting speed, the spray water flow rates and ...

    • 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 ...