Natural convection from perforated vertical fins with different hole diameters
Yazarlar (4)
Mohammed Salam Taha Taha
Prof. Dr. Ali ATEŞ Selçuk Üniversitesi, Türkiye
Doç. Dr. Aziz Hakan Altun Selçuk Üniversitesi, Türkiye
Dr. Öğr. Üyesi Eyüb Canlı Selçuk Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(Diğer hakemli uluslarası dergilerde yayınlanan tam makale)
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| Dergi Adı | International Journal of Energy Applications and Technologies | ||
| Dergi ISSN | 2548-060X | ||
| Dergi Tarandığı Indeksler | ResearchBib, ResearchBib, Science Library Index, Science Library Index, Academic Keys, Academic Keys, Rootindexing, Rootindexing, Scientific Indexing Services, Scientific Indexing Services, infobase index, Arastirmax, COSMOS IF, CiteFactor, Eurasian Scientific Journal Index, SJIFactor | ||
| Makale Dili | İngilizce | Basım Tarihi | 12-2018 |
| Cilt / Sayı / Sayfa | 5 / 4 / 174–180 | DOI | 10.31593/ijeat.505116 |
| Makale Linki | http://dergipark.gov.tr/ijeat/issue/42280/505116 | ||
| UAK Araştırma Alanları |
Isı Transferi
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| Özet |
| Natural convection is a physical mechanism that is mostly benefited in cooling of electronics. Due to the variety of the geometrical and operational parameters, industrial and scientific studies are continuing for better performance. One of the focuses is on perforations of heat sink fins as a passive flow control technique. This work experimentally investigates a sinusoidal wavy fin heat sink after fins were perforated with two different hole diameters. Heat sink was heated by using an electrical resistance for six different heating powers. The temperature at the heater-heat sink interface was measured with the aid of four thermocouples. Transient and steady temperature values were measured and then recorded by means of a data-logger. The details of the experimental setup are given alongside of visuals. It is desired to state some assessment and evaluations about the experimental setup. Related literature studies are also summarized in the introduction section. Heat transfer, Rayleigh and Nusselt numbers were calculated and compared with each other and parameters by means of 2D plot graphics. The time for reaching steady state is changing between 1.5 to 2 hours. Average wall temperature changes linearly with heating power. Average wall temperature values are between 300 and 370 Kelvin. Nusselt number increases with increasing Rayleigh number as expected. While Rayleigh number changes between 500,000 to 5,000,000 Nusselt number approximately increases from 18 to 25. 3 mm perforations yield better results in terms of Nusselt numbers, which means better thermal convection. Surface temperature trends are similar according to … |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Google Scholar | 5 |