TY  - JOUR
T1  - Numerical Investigation of a Tubular Heat Exchanger Fitted with Triangular Ribs
AU  - Benamara, Nabil
AU  - Lahmer, Djelloul
AU  - Merzoug, Mohamed
AU  - Lahcene, Abdelkader
AU  - Boulenouar, Abdelkader
AU  - Amınallah, Miloud
PY  - 2022
DA  - December
DO  - 10.55549/epstem.1226677
JF  - The Eurasia Proceedings of Science Technology Engineering and Mathematics
JO  - EPSTEM
PB  - ISRES Publishing
WT  - DergiPark
SN  - 2602-3199
SP  - 452
EP  - 463
VL  - 21
LA  - en
AB  - In the present work we numerically study the effect of the presence of triangular shaped promoterson the efficiency of a tubular heat exchanger. When we talk about efficiency, we are generally faced withproblems of dynamic and thermal behavior within the latter. The main objective is to optimize the geometricparameters of the triangular-shaped promoters in order to collect the maximum energy at a minimum cost.Indeed, in the case of a two-dimensional simplified geometry, we considered the flow of an incompressible fluid(air) in a cylindrical heat exchanger tube equipped with baffles placed perpendicular to the direction of flow.Several baffle arrangements are considered according to the angle of inclination β, the space between the twosuccessive baffles (space ratio PR: P/Dh) and the length of the baffle (blocking ratio BR: e/Dh) . Thecalculations are carried out by means of the fluent computer code using the k-ε turbulence model, RNG, with aReynolds number Re varying from 3000 up to 13000. The results found indicated that the best thermalperformance obtained corresponds to β=30°;BR=0.2; PR=1 and Re=4000.
KW  - Turbulence ribs
KW  - Nusselt number Nu
KW  - Friction number Fr
KW  - Turbulence model K-ε RNG
KW  - Thermalhy
UR  - https://doi.org/10.55549/epstem.1226677
L1  - https://dergipark.org.tr/en/download/article-file/2862396
ER  -