Investigation of turbulent flow and heat transfer in an air to water double-pipe heat exchanger

2014 ◽  
Vol 26 (4) ◽  
pp. 941-947 ◽  
Author(s):  
Mohsen Sheikholeslami ◽  
M. Jafaryar ◽  
F. Farkhadnia ◽  
Mofid Gorji-Bandpy ◽  
Davood Domiri Ganji
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Turbulent Flow ◽  
Flow And Heat Transfer ◽  
Double Pipe ◽  
Pipe Heat

An experimental study on MWCNT–water nanofluids flow and heat transfer in double-pipe heat exchanger using porous media

2019 ◽  
Vol 137 (5) ◽  
pp. 1797-1807 ◽  
Author(s):  
Ahmad Moradi ◽  
Davood Toghraie ◽  
Amir Homayoon Meghdadi Isfahani ◽  
Ali Hosseinian
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Porous Media ◽  
Heat Exchanger ◽  
Flow And Heat Transfer ◽  
Double Pipe ◽  
Pipe Heat

Numerical Investigation on Conjugate Heat Transfer of Supercritical CO2 in a Horizontal Double-Pipe Heat Exchanger

2017 ◽  
Author(s):  
Zhenxing Zhao ◽  
Jun Wu ◽  
Yuansheng Lin ◽  
Qi Xiao ◽  
Fan Bai ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Supercritical Fluid ◽  
Supercritical Co2 ◽  
Conjugate Heat Transfer ◽  
High Mass ◽  
Heat Transfer Deterioration ◽  
Flow And Heat Transfer ◽  
Double Pipe ◽  
Pipe Heat

The special fluid flow and heat transfer characteristics of supercritical CO2 in a horizontal double-pipe heat exchanger have been numerically investigated. The AKN k-epsilon model was selected to model the turbulent flow and heat transfer of supercritical fluid. In conjugate heat transfer process, there exists obvious heat transfer deterioration on the top wall for horizontal flow. The region of heat transfer deterioration expands with the increased GShell or TShell,0, and the influence of TShell,0 on conjugate heat transfer is greater than that of GShell. The high-temperature fluid will gather near the top region. The intensity and position of the secondary flow can represent the turbulence heat transfer. When the supercritical fluid temperature is much higher than Tpc, buoyancy force can be omitted, but it can not been neglected even under relatively high mass flux.

Effect of Al2O3/water nanofluid on heat transfer of turbulent flow in the inner pipe of a double-pipe heat exchanger

2019 ◽  
Vol 56 (4) ◽  
pp. 1127-1140 ◽  
Author(s):  
Mingrui Zheng ◽  
Dong Han ◽  
Faizan Asif ◽  
Zetian Si
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Turbulent Flow ◽  
Double Pipe ◽  
Pipe Heat
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