Experimental Investigation on Triple Concentric Tube Heat Exchanger with Helical Baffles
DOI:
https://doi.org/10.24113/ijoscience.v6i11.324Keywords:
heat exchanger, Reynolds number, Nusselt number, friction factorAbstract
A heat exchanger is a device used to transfer thermal energy between two or more liquids, between a solid surface and a liquid, or between solid particles and a liquid at different temperatures and in thermal contact where shell and tube heat exchangers contain a large number of tubes packed in a jacket whose axes are parallel to those of the shell. Heat transfer occurs when one fluid flows into the pipes while the other flows out of the pipes through the jacket. In industry, three-tube heat exchanger tubes are used as condensers, evaporators, sub cooler, heat recovery heat exchangers, etc. The three concentric tube heat exchanger is a constructively modified version of the double concentric tube heat exchanger as an intermediate tube adds some advantages over the double tube heat exchangers in that it is larger tube surface area heat transfer per unit of length. In the present study, the triple tube heat exchanger is further modified by inserting helical baffle over the surface of one of the tubes and observed turbulence flow which may lead to high heat transfer rates between the fluids of heat exchanger. Further, the Reynolds number, Nusselt number, friction factor of the flow at different mass flow rates of the hot fluid while keeping a constant mass flow rate of cold and normal temperature fluids were calculated. It was found that as the mass flow rate of the fluid increases the Reynolds number increases, the turbulence in the flow will increase which will cause the intermixing of the fluid, higher the rate of intermixing, more will be the heat transfer of the system.
Downloads
References
Gomaa A, Halim M, Alsaid A. Enhancement of cooling characteristics and optimization of a triple concentric-tube heat exchanger with inserted baffles. International Journal To Thermal Science 2017;120:106-120
Mazaheri N, Bahiraei M “Analyzing performance of a baffled triple-tube heat exchanger operated with graphene nanoplatelets nanofluid based on entropy generation and exergy destruction” International Communications in Heat and Mass Transfer 2019; 107:55-67.
Bahiraei M, Mazaheri N. Application of a hybrid nanofluid containing graphene nanoplatelet–platinum composite powder in a triple-tube heat exchanger equipped with inserted baffles. Applied Thermal Science 2019; 149:588-601.
Amanuel T, Mishra M. Investigation of thermohydraulic performance of triple concentric?tube heat exchanger with CuO/water nanofluid: Numerical approach. Heat transfer Asian research 2018; 47: 974-995.
Touatit A, Bougriou C. Optimal diameters of triple concentric-tube heat exchangers. International Journal of Heat and Technology 2018; 36: 367-375.
Shahril S, Quadir G. Thermo hydraulic performance analysis of a shell-and-double concentric tube heat exchanger using CFD. International Journal Of Heat And Mass Transfer 2017; 105: 781-798.
Wen J, Gu X. Multi-parameter Optimization of Shell-and-Tube Heat Exchanger with Helical Baffles Based on Entransy Theory. Applied Thermal Science 2018;130: 804-813
Wang S, Xiao J. Application of Response Surface Method and Multi-objective Genetic Algorithm to Configuration Optimization of Shell-and-tube Heat Exchanger with Fold Helical Baffles. Journal Of Applied Thermal Engineering 2018; 129: 512-520.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Rohit Kumar Gaur, Dr. Shashi Kumar Jain, Dr. Sukul Lomash

This work is licensed under a Creative Commons Attribution 4.0 International License.
IJOSCIENCE follows an Open Journal Access policy. Authors retain the copyright of the original work and grant the rights of publication to the publisher with the work simultaneously licensed under a Creative Commons CC BY License that allows others to distribute, remix, adapt, and build upon your work, even commercially, as long as they credit you for the original creation. Authors are permitted to post their work in institutional repositories, social media or other platforms.
Under the following terms:
-
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.