https://doi.org/10.1140/epjp/s13360-020-00284-0
Regular Article
Entropy generation for spiral heat exchanger with considering NEPCM charging process using hybrid nanomaterial
1
Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam
2
Renewable Energy Systems and Nanofluid Applications in Heat Transfer Laboratory, Babol Noshirvani University of Technology, Babol, Iran
3
Department of Mathematics, Faculty of Science, King Khalid University, Abha, 61413, Kingdom of Saudi Arabia
4
Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
5
Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
* e-mail: iskander.tlili@tdtu.edu.vn
Received:
13
August
2019
Accepted:
14
February
2020
Published online:
5
March
2020
In current unsteady simulation, charging of paraffin in an enclosure which is equipped with spiral pipe was scrutinized. Not only in paraffin but also in water inside the pipe, nanoparticles were dispersed to boost the thermal treatment. Outputs were reported in various stages in forms of irreversibility components. Increasing inlet velocity leads to higher liquid fraction which means better performance. As time increases, inlet velocity has lower effect on melting process. Increasing pumping power is beneficial only when time is lower than 20 min. Frictional irreversibility increases with time at initial time, and then, it reduces.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
