Please cite this article as: H. Abazari Bahnemiri, S. A. A. Oloomi, S. A. Agha Mirjalily, A. Zare-Shahabadi, ۲۰۲۱. The Role of Nanoparticles and Different Tube Diameter on Thermal Performance in Shell and Helically Coiled Tube Heat Exchangers with Single Phase and Sub-cooled Boiling Flow, Iranian (Iranica) Journal of Energy and Environment, ۱۲(۴), pp. ۳۶۷-۳۷۷. Doi: ۱۰.۵۸۲۹/ijee.۲۰۲۱.۱۲.۰۴.۱۰ Iranian (Iranica) Journal of Energy & Environment Journal Homepage: www.ijee.net IJEE an official peer review journal of Babol Noshirvani University of Tec
Iranian (Iranica) Journal of Energy and
Environment 12(4): 367-377, 2021
Journal Homepage: www.ijee.net
IJEE an official peer review journal of Babol Noshirvani University of Technology, ISSN:2079-2115
The Role of Nanoparticles and Different Tube Diameter on Thermal Performance in Shell and Helically Coiled Tube Heat Exchangers with Single Phase and Sub-cooled Boiling Flow
H. Abazari Bahnemiri1, S. A. A. Oloomi1*, S. A. Agha Mirjalily1, A. Zare-Shahabadi2
Paper history:
Received 12 November 2021
Accepted in revised form 08 December 2021
Keywords:
Heat exchanger
Heat transfer coefficient
Helically coiled tube
Nanoparticles
Sub-cooled boiling flow
ABSTRACT
In the present research, effects of nanoparticles and changing of tube diameter have been scrutinized on heat transfer parameters in the shell and helically coiled tube heat exchanger. A CFD analysis and also a modeling of the mentioned heat exchager have carried out by writing a code in MATLAB software for two regimes involving forced convection heat trasnfer in single phase fluid flow and sub-cooled boiling. In the case under analysis, considered nanoparticles in this research was Nickel nanoparticles with 0.1 and 1% volumetric concentration. Based on the results, both going up of volume concentration of nanoparticles and increasing of tube diameter are cause to make better heat transfer parameters. In truth, heat transfer coefficient and Nusselt number have been enhanced by 0.1 and 1 % volumetric concentration of Nickel nanoparticles
.