Experimental and theoretical study on free and force convection heat transfer

2017 ◽  
Vol 10 ◽  
pp. 1143-1152
Author(s):  
Guillermo Valencia Ochoa ◽  
Wilmer Escobar Sanchez ◽  
Sergio De La Hoz Truyoll
Keyword(s):  
Heat Transfer ◽  
Theoretical Study ◽  
Convection Heat Transfer ◽  
Force Convection ◽  
Convection Heat

A Numerical Study of Eccentricity Effect to Heat Transfer Under Single Phase Force Convection Inside a Vertical Annulus

2013 ◽  
Author(s):  
Yang Liu ◽  
Qianqian Jia ◽  
Haijun Jia
Keyword(s):  
Heat Transfer ◽  
Single Phase ◽  
Stokes Equations ◽  
Numerical Study ◽  
Convection Heat Transfer ◽  
Force Convection ◽  
Convection Heat ◽  
Eccentric Annulus ◽  
Eccentricity Effect ◽  
Vertical Annulus

Because annulus channel can be used to develop high efficiency compact heat exchangers, the heat transfer in annulus channel has become great interest to researchers in recent years. Most of the studies focus on the vertical concentric and horizontal eccentric annulus. The investigations about single phase force convection heat transfer inside a vertical eccentric annulus are not enough. In this work, force convection heat transfer is numerically studied to determine the eccentricity effect inside a vertical annulus. For this purpose, full Reynolds-averaged Navier-Stokes equations along with energy equations are solved in a 3-D grid. The discrete method of the equations is based on finite-volume method and the turbulence model is RNG k-ε model. The radius ratio of the annulus is 0.8 in this work. Heat flux of one wall is constant while the other is insulated. Firstly, the feasibility and exactness of the numerical method is proved by comparing the Nusselt number with experiment in concentric annulus. Then the effect of eccentricity is studied in detail.

Force Convection Heat Transfer Analysis through Different Channel (Review Of Work)

2011 ◽  
Vol 3 (8) ◽  
pp. 256-258
Author(s):  
Pankaj Sonkusare ◽  
◽  
S. K. Dhakad S. K. Dhakad ◽  
Pravin Kumar Pravin Kumar ◽  
Sanjay Katarey ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Convection Heat Transfer ◽  
Force Convection ◽  
Heat Transfer Analysis ◽  
Convection Heat

Force convection heat transfer to water flowing normal to a cylinder

AIChE Journal ◽  
1961 ◽  
Vol 7 (3) ◽  
pp. 531-531 ◽  
Author(s):  
Edward R. Purves ◽  
Robert S. Brodkey
Keyword(s):  
Heat Transfer ◽  
Convection Heat Transfer ◽  
Force Convection ◽  
Convection Heat

scholarly journals G EXPERIMENTAL AND THEORETICAL STUDY OF FORCED CONVECTION AROUND A CYLINDER EMBEDDED IN POROUS MEDIA

2020 ◽  
Vol 20 (2) ◽  
pp. 164-179
Author(s):  
Abeer Aamer ◽  
Suhad Abd-hameed
Keyword(s):  
Heat Transfer ◽  
Porous Material ◽  
Forced Convection ◽  
Test Section ◽  
Average Nusselt Number ◽  
Theoretical Study ◽  
Convection Heat Transfer ◽  
Convection Heat ◽  
Theoretical Results ◽  
Good Agreement

An experimental and theoretical study of air forced convection heat transfer at Reynoldsnumber (1091.5 to 1560) around a circular cylinder placed in an iron test section (0.2x0.2x0.4m3) filled with saturated porous material glass balls of 5mm in diameter. A copper circularcylinder heater of diameter 0.015m and length 0.2m is heated electrically; it is located indifferent positions in X and Y direction within the test section. The forced convection heattransfer is simulated using the ANSYS program (Fluent). The results showed that the surfacetemperature distribution of the cylinder has the same trends for the different locations withinthe test section. The average Nusselt number increases with Reynolds number and heat flux.Also, the results show that the use of porous material improves heat transfer by 67.4%. Themaximum percentage deviation between the experimental and theoretical results is 1.622%.Moreover, experimental correlations were introduced and comparison was performedbetween the present results with the previous studies and it gives a good agreement.

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