TY  - EJOU
AU  - Pal, Divyprakash C. 
AU  - Majumder, Abhik 

TI  - NUMERICAL STUDY OF FIN-TUBE TYPE HEAT EXCHANGER WITH  DELTA WINGLETS
T2  - Frontiers in Heat and Mass Transfer

PY  - 2016
VL  - 7
IS  - 1
SN  - 2151-8629

AB  - In this present work heat transfer characteristics, thermal performance and pressure drop are studied numerically for a finned-tube bank heat exchanger 
with Delta Winglet Vortex Generator (DWVG) on the fin at different angle of attack (α). The thermo-fluid is studied by varying α at 15o
, 25o
, 30o
and 
35o
. The base length (lDW) of the winglet also varied from 20mm to 35mm. The heat transfer coefficient and pressure drop increased in all the cases 
with increase in Reynolds number. However, significant increase in heat transfer of about 23.92% was observed for α at 35o when compared with plain 
fin heat-exchanger.
KW  - <i>fin-and-tube heat exchanger
KW  -  delta winglet vortex generator
KW  -  heat transfer enhancement.</i>

DO  - 10.5098/hmt.7.1