Meso- and Micro-Scale Frontiers of Compact Heat Exchangers

1999 ◽  
pp. 139-158 ◽  
Author(s):  
S. S. Mehendale ◽  
A. M. Jacobi ◽  
R. K. Shah
Keyword(s):  
Heat Exchangers ◽  
Compact Heat Exchangers ◽  
Micro Scale

Heat Transfer Augmentation by Ion Injection in an Annular Duct

Volume 3 ◽  
2004 ◽  
Author(s):  
Walter Grassi ◽  
Daniele Testi
Keyword(s):  
Heat Transfer ◽  
Heat Exchangers ◽  
Charged Particles ◽  
Outer Wall ◽  
Heated Wall ◽  
Dynamic Effects ◽  
Compact Heat Exchangers ◽  
Micro Scale ◽  
Heat Transfer Augmentation ◽  
Ion Injection

The thermofluid dynamic effects of ion injection from sharp metallic points added perpendicularly to the inner wire of a short horizontal annulus were experimentally investigated. A dielectric liquid (FC-72 by 3M) was weakly forced to flow in the duct, which was uniformly heated on the outer wall. A d.c. voltage as high as 22 kV was applied to the inner electrode, while the heated wall was grounded. Both the laminar and the turbulent mixed convection regimes were obtained, varying the imposed flow rate. Once an electric field is applied, the flow is dramatically modified by the jets of charged particles, which transfer their momentum to the neutral adjacent ones. Different injection strengths were obtained on the emitters, because the shape of the point tips was not controlled at the micro-scale. Nusselt number distributions were obtained azimuthally and longitudinally, monitoring the wall temperatures. In all cases, heat transfer turned out greatly enhanced in the proximity of the emitters, without a significant increase in pressure drop through the test section and with a negligible Joule heating, making this technique very attractive for application in compact heat exchangers.

COMPACT HEAT EXCHANGERS

2018 ◽  
Vol 25 (1) ◽  
pp. 1-59 ◽  
Author(s):  
Ralph L. Webb
Keyword(s):  
Heat Exchangers ◽  
Compact Heat Exchangers

A Comparison of Tapered and Straight Circular Pin-Fin Compact Heat Exchangers for Electronic Appliances

2009 ◽  
Vol 16 (3) ◽  
pp. 301-314
Author(s):  
A. Dewan ◽  
V. Bharti ◽  
V. Mathur ◽  
U. K. Saha ◽  
P. Patro
Keyword(s):  
Heat Exchangers ◽  
Compact Heat Exchangers ◽  
Pin Fin

modeFRONTIER for Virtual Design and Optimization of Compact Heat Exchangers

2014 ◽  
Author(s):  
Marco Carriglio ◽  
Alberto Clarich ◽  
Rosario Russo ◽  
Enrico Nobile ◽  
Paola Ranut
Keyword(s):  
Heat Exchangers ◽  
Virtual Design ◽  
Design And Optimization ◽  
Compact Heat Exchangers

95/00706 Guide to compact heat exchangers

1995 ◽  
Vol 36 (1) ◽  
pp. 41
Keyword(s):  
Heat Exchangers ◽  
Compact Heat Exchangers

An approach to fouling allowances in the design of compact heat exchangers

2002 ◽  
Vol 22 (7) ◽  
pp. 755-762 ◽  
Author(s):  
J.E Hesselgreaves
Keyword(s):  
Heat Exchangers ◽  
Compact Heat Exchangers
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