Title :
Study on Heat Transfer Perpormance for Developing Laminar Tube Flow Inserted with Ringy Porous
Author :
Huang, Zhifeng ; Liu, Wei ; Yang, Kun ; Liu, Zhichun ; Liu, Yonglu
Author_Institution :
Sch. of Energy & Power Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
The flow and heat transfer integrated performance for the developing laminar air tube flow inserted with the ringy porous media was studied numerically. Its mechanisms of enhancing heat transfer were also analyzed using the principle of field synergy. The results showed that inserting ringy porous media in the core of developing laminar tube flow can improve the flow and heat transfer performance effectively, and the highest value of PEC is up to 2. The optimal radius of the center aperture of the porous inserts is 1.0 mm. Furthermore, a high porosity is recommended when using porous media for heat transfer enhancement.
Keywords :
flow through porous media; heat transfer; laminar flow; pipe flow; heat transfer enhancement; heat transfer performance; laminar air tube flow; ringy porous media; Apertures; Filling; Heat engines; Heat transfer; Mathematical model; Numerical simulation; Power engineering and energy; Resistance heating; Temperature; Thermal conductivity; heat transfer enhancement; principle of field synergy;
Conference_Titel :
Energy and Environment Technology, 2009. ICEET '09. International Conference on
Conference_Location :
Guilin, Guangxi
Print_ISBN :
978-0-7695-3819-8
DOI :
10.1109/ICEET.2009.91
