There have been some experimental tests on hollow curved-steel struts with thin-walled square sections, in order to investigate their general behavior, particularly their capacity for bearing differing loads. One set of square tubes are cold-formed into segments of circular arcs with curvature radii, equal to 4000 mm. Different lengths of curved struts are fabricated so as to cover a practical ...

Sometimes the need for non-circular ducts arises in many heat transfer applications because of lower pressure drop of non-circular cross section such as square duct compared to circular tube, particularly in compact heat. But square cross section has poor heat transfer performance and it is expected that using a nanofluid as a new heat transfer media may improve the heat transfer performance of...

A fibrous material is characterized by its fineness, flexibility and high length/fineness ratio it used to reduce noise in indoor rooms due their porous structure. The aim of this work focused on investigating the structure two different fibers (acrylic polyester) from analysis macrostructural parameters, such as length cross-section (solid or hollow). Furthermore, degree influence these parame...

Güneş destekli hava ısıtıcıların çok yaygın kullanım ile birlikte ısı transferi verimlerinin düşük olduğu bilinmektedir. Bu konuda çeşitli çalışmalar yürütülmektedir. Yapılan bu çalışmada yutucu plaka üzerine kare kesit yapay pürüzlülük oluşturularak tasarlanan bir güneş ısıtıcısının sayısal analizi yapılmıştır. Kütle, momentum ve enerji korunumu denklemlerinin simülasyonu, kullanılan hesaplama...