Case study of heat transfer behavior of helical ground heat exchanger

2012 ◽  
Vol 53 ◽  
pp. 137-144 ◽  
Author(s):  
Hyunku Park ◽  
Seung-Rae Lee ◽  
Seok Yoon ◽  
Hosung Shin ◽  
Dae-Soo Lee
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Ground Heat Exchanger ◽  
Heat Transfer Behavior ◽  
Transfer Behavior

Investigation of Heat Transfer for Shell-Tube Fuel-Cooled Heat Exchanger

2013 ◽  
Vol 378 ◽  
pp. 459-465
Author(s):  
Ya Guo Lu ◽  
Peng Fei Zhu
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Relative Error ◽  
Absolute Error ◽  
Heat Transfer Characteristics ◽  
Shell Side ◽  
Transfer Characteristics ◽  
Aero Engine ◽  
The Absolute

A calculate method based on ε-NTU model for heat transfer characteristics of shell-tube fuel-cooled heat exchanger of aero-engine lubrication system was built. The heat convection coefficient was obtained by a dimensionless curve (Re~StPr2/3), which was detailed introduced as well. A case study was executed at last. The absolute error of the outlet lubrication of the tube side and the shell side between the value of calculation and experiment was less than ±10°C, and the relative error was less than 6.5%. The absolute error of the heat transferred between calculation and experiment was less than ±0.9kW, and the relative error was less than 7.4%. It indicates that the mothod is available for the investigation of heat transfer characteristics of shell-tube fuel-cooled heat exchanger.

scholarly journals Heat transfer behavior of flat plate having 45° ellipsoidal dimpled surfaces

2014 ◽  
Vol 2 ◽  
pp. 67-74 ◽  
Author(s):  
Nopparat Katkhaw ◽  
Nat Vorayos ◽  
Tanongkiat Kiatsiriroat ◽  
Yottana Khunatorn ◽  
Damorn Bunturat ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Flat Plate ◽  
Heat Transfer Behavior ◽  
Transfer Behavior
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