Effects of Sinusoidal Turbulator in Cylindrical Channel on Heat Transfer and Flow Characteristics
Yazarlar (3)
Doç. Dr. Aziz Hakan Altun Selçuk Üniversitesi, Türkiye
Doç. Dr. Mehmet GÜRDAL Kastamonu Üniversitesi, Türkiye
Prof. Dr. Adnan Berber Necmettin Erbakan Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Maejo International Journal of Science and Technology (Q3) | ||
| Dergi ISSN | 1905-7873 Dergi Bilgileri (2020) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | Ingilizce | Basım Tarihi | 02-2020 |
| Cilt / Sayı / Sayfa | 14 / 1 / 27–42 | DOI | – |
| Makale Linki | http://www.mijst.mju.ac.th/index.asp | ||
| UAK Araştırma Alanları |
Termodinamik
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| Özet |
| Abstract Effects of heat transfer and flow characteristics on Reynolds numbers of different sinusoidal turbulators placed separately from a pipe in the turbulent flow were investigated experimentally. The experiments were carried out under forced flow and constant heat flow conditions. The elements, which drew a sine curve used as a turbulator, were positioned axially to the channel centre. The experiments were repeated for 3 width values of sinusoidal turbulators that correspond to 3D/4, D/2 and D/4 (D= inner diameter of test pipe). The experiments showed that although there were increases in the rate of heat transfer with the turbulator, they caused considerable pressure drop. As a result, as the width of the turbulator increased, the heat transfer ratio (the Nusselt number) and coefficient of friction increased. Increase in Nusselt number was about 39-86% at D/4 width, 70-119% at D/2 width and 72-170% at 3D/4 … |
| Anahtar Kelimeler |
| Heat transfer enhancement | Pressure drop and friction in pipe | Sinusoidal turbulator | Turbulent flow in pipe |
