Experimental investigation of the effects of horizontally oriented vertical sinusoidal wavy fins on heat transfer performance in case of natural convection
Yükleniyor...
Dosyalar
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
PERGAMON-ELSEVIER SCIENCE LTD
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this work, natural convection heat transfer in horizontally oriented, vertical sinusoidal wavy fins, involving radiation heat transfer were investigated experimentally. Experiments were done with wavy fins having three different amplitudes, namely H/30, H/15 and H/10, with different heater power inputs. Results were compared to the results of a rectangular finned plate and also a reference horizontal base plate. Power of the heater was changed from 1.02 W to a maximum of 32.06 W and totally 69 experiments were done for 5 test sets. Results indicate that, heat transfer enhancement is better with wavy fins than with the rectangular fins. On the other hand, after a certain value of the wave amplitude the increase in the amplitude negatively affecting the natural convection due to the blockage of fluid motion. The results also indicate that, an important part of total heat transfer is by radiation and should be considered in natural convection studies of finned surface heat sinks. (C) 2019 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Electronics cooling, Finned surfaces, Heat transfer enhancement, Natural convection heat transfer, Radiation heat transfer, Wavy fins
Kaynak
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
WoS Q DeÄŸeri
Q1
Scopus Q DeÄŸeri
Q1
Cilt
139
Sayı
Künye
Altun, A. H., Ziylan, O. (2019). Experimental Investigation of the Effects of Horizontally Oriented Vertical Sinusoidal Wavy Fins on Heat Transfer Performance in Case of Natural Convection. International Journal of Heat and Mass Transfer, 139, 425-431.
