Experimental and numerical investigation of the effect of turbulator on heat transfer in a concentric-type heat exchanger
Yükleniyor...
Tarih
2015-05-21
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis
Erişim Hakkı
info:eu-repo/semantics/restrictedAccess
Attribution-NonCommercial-ShareAlike 3.0 United States
Attribution-NonCommercial-ShareAlike 3.0 United States
Özet
This article experimentally and numerically analyzes the effect of turbulators with different
geometries (Type I, Type II, Type III, and Type IV) located at the inlet of the inner pipe in a
concentric-type heat exchanger. Experiments were performed at parallel-flow conditions in
the same and opposite directions to investigate the impact of manufactured turbulators on
heat transfer and pressure drop. In the numerical study, ANSYS 12.0 Fluent code program
was used, and basic protection equations were solved in the steady-state, three-dimensional,
and turbulence-flow conditions. Results were obtained from numerical analysis conducted at
different flow values of air (7, 8, 9, 10, 11, and 12 m3
/h). The distribution of temperature,
velocity, and pressure was demonstrated as a result of numerical analyses. Experimental and
numerical results were compared, and it was observed that they were in conformity with each
other. When the data obtained from the analyses were examined, the highest heat transfer,
pressure drop, and friction factor increase were detected to be in the Type IV turbulator.
Açıklama
Anahtar Kelimeler
Heat Transfer Enhancement, Turbulator, Numerical Analysis, Concentric Heat Exchanger
Kaynak
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
29
Sayı
3
Künye
Budak Ziyadanoğulları, N., Argunhan, Z., Yücel, H.L. (2015). Experimental and numerical investigation of the effect of turbulator on heat transfer in a concentric-type heat exchanger. Experimental Heat Transfer, 29 (3), pp.322-336. DOI:https://dx.doi.org/10.1080/08916152.2014.976723
