TY  - EJOU
AU  - Singh, Yashwant 

TI  - DEVELOPMENT OF NEW CORRELATIONS FOR NUSSELT NUMBER  AND FRICTION FACTOR OF  /WATER BASED NANOFLUID FLOW  IN V-PATTERN PROTRUSION RIBBED SQUARE CHANNEL
T2  - Frontiers in Heat and Mass Transfer

PY  - 2018
VL  - 11
IS  - 1
SN  - 2151-8629

AB  - Nanofluids play important roles in the heat transfer and flow characteristics in ribbed square channels. Systematic experiments are conducted to measure 
heat transfer enhancement and TiO<sub>2</sub>-H<sub>2</sub>O based nanofluid flow characteristics on a protruded with combined V-type ribbed square channel. 
Reynolds number studied in the channel range from 4000-18000. Investigational parameters of square channel contain, volume fraction range of 1.0-
4.0%, particle diameter range of 30nm-45nm, relative protruded rib height range of 0.10-0.25, ratio of protruded height to print diameter range of 0.8-
2.0, relative protruded rib pitch ratio range of 2.0-3.5 and angle of attack of 300
-750
 respectively. Results indicates that the thermal performance of the 
protruded combined V-type ribbed square channel falls with increasing Reynolds number. The highest value of thermal hydraulic performance 
parameter is found to be 3.21for the range of parameters investigated. Correlations predicting Nusselt number and friction factor as a function of volume
fraction, particle diameter range, relative protruded rib height, ratio of protruded height to print diameter, relative protruded rib pitch ratio, angle of 
attack and flow parameter. The correlations for Nusselt number and friction factor have also been developed on the basis of experimental data with 
considerable good accuracy.
KW  - <i>Nano powder
KW  -  energy
KW  -  flow duct
KW  -  friction factor
KW  -  single phase heat transfer.</i>

DO  - 10.5098/hmt.11.33