Numerical investigation of air-side heat transfer and fluid flow in a microchannel heat exchanger
Küçük Resim Yok
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Avestia Publishing
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this paper, air-side heat transfer and fluid flow in a compact microchannel was investigated numerically by a commercially available modelling and simulation software. The translational periodic boundary condition was used to reduce the computational cost. The results were obtained for four different fin pitch lengths and four different inlet velocities. The results were given by the heat transfer coefficient, the average Nusselt number, j-factor, pressure drop and contours of velocity and temperature. The results show that the heat transfer coefficient gets its highest value for the pitch length of 1 mm. The decrease in the heat transfer coefficient gets lower values with the increase in the pitch length. It is observed that the average Nusselt number shows a considerable increase with an increase in the Reynolds number. The results also show that the j-factor shows an exponential decrease with an increase in the Reynolds number. Finally, the results show that the pressure drop shows a considerable decrease with an increase in the pitch length. © Avestia Publishing, 2017.
Açıklama
Proceedings of the 2nd World Congress on Mechanical, Chemical, and Material Engineering, MCM 2016 -- 22 August 2016 through 23 August 2016 -- -- 139568
Anahtar Kelimeler
Heat Exchanger; J Factor; Microchannel; Nusselt Number; Pressure Drop
Kaynak
Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering
WoS Q Değeri
Scopus Q Değeri
N/A
