BibTeX:

@article{IJIRSTV2I2072,
     title={Performance Analysis of Double Pipe Heat Exchanger using Convergent - Divergent-Divergent Spring Turbulators},
     author={Ayush kumar},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={2},
     pages={224--228},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I2072.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

In recent years, many numerical and experimental studies on heat transfer have been discussed with different configurations. Here CDD (convergent divergent spring tabulators) CDDSTs were placed in the inner tube of double pipe heat exchanger and effect on heat enhancement and friction factor was experimentally investigated. CDDSTs at various pitches i.e (p=0,p=15,p=16) were used for the different ranges of Reynolds number. For cold water its ranges between 9000to17000 and for hot water 18000 to 24000. Results from CDDSTs were compared with plane tube and results showed that Nusslet number increased while friction factor decreased with increased in Reynolds number. Friction factor was increased by 287% while Nusslet no increased by 28%. . However thermal performance factor was maximum for CDDSTs (p = 15) with value 0.319.

Effectiveness, Friction Factor, Nusselt Number, Spring Turbulator,CDD(convergent- divergent- divergent)