تاسم البحثplay youtubePort offers1Experimental and Numerical Investigation of Convective Heat Transfer in a Circular Pipe with Internal Ring ribs2Experimental and Numerical Investigation of Convective Heat Transfer in a Circular Tube with Internal square ribs3Effect of hybrid nanofluids on thermal and hydraulic characteristics of hexagon tube4Case study on solar water heating for flat plate collector5Experimental study of the effect of impeller blades different shape on centrifugal pump performance6Design and Manufacture of Lubrication System for Heavy Duty Equipment7An Experimental Study of the Thermal Performance of Solar Air Collector Inclined (75o) on the Horizontal Plane