INSIGHT INTO METAL FOAM DOUBLE TUBE HEAT EXCHANGER: SIGNIFICANCE OF PORE DENSITY, PRESSURE DROP CHARACTERISTICS, AND PERFORMANCE ANALYSIS
-
Published:2024
Issue:4
Volume:27
Page:45-87
-
ISSN:1091-028X
-
Container-title:Journal of Porous Media
-
language:en
-
Short-container-title:J Por Media
Author:
Dhavale Aniket A.,Lele Mandar M.
Abstract
This study investigates the integration of metal foam heat exchangers into solar flat plate collectors to enhance
their thermal performance, addressing a critical need for efficient solar energy utilization. The primary aim is to
comprehensively analyze the thermal and fluid flow behavior within this integrated system using numerical simulations
conducted with ANSYS Fluent v2021, with water as the working fluid to emulate real-world conditions. Three types
of metal foam materials, nickel, copper, and aluminum, with varying porosities (0.80 to 0.90) and pore densities (10
to 30) are considered, and the simulation results are rigorously validated against experimental data. In experimental trials, a nickel metal foam with a porosity of 0.90 and a pore density of 10 pores per inch (PPI) is inserted into the double tube heat exchanger's annular space, and measurements of temperature and pressure drop are collected both with and without the metal foam. The research employs Reynolds-averaged Navier-Stokes (RANS) equations coupled
with the k-epsilon model to simulate fluid flow and heat transfer phenomena, treating the metal foam heat exchanger as a porous medium due to its complex geometry. The study's major conclusion is the identification of an optimal metal
foam configuration that significantly enhances thermal performance in solar thermal applications. This conclusion
is grounded in a thorough evaluation of performance criteria and parameters. Additionally, the research provides
valuable insights for engineering design and optimization, ultimately advancing the development of more efficient and
sustainable solar thermal systems, which is of paramount significance in the pursuit of cleaner and more sustainable
energy sources.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science,Biomedical Engineering,Modeling and Simulation
Reference52 articles.
1. Abadi, G.B. and Kim, K.C., Experimental Heat Transfer and Pressure Drop in a Metal Foam-Filled Tube Heat Exchanger, Exp. Therm. Fluid Sci., vol. 82, pp. 42-49, 2017. 2. Abadi, G.B., Moon, C., and Kim, K.C., Flow Boiling Visualization and Heat Transfer in Metal Foam-Filled Mini Tubes - Part I: Flow Pattern Map and Experimental Data, Int. J. Heat Mass Transf., vol. 98, pp. 857-867, 2016. 3. Abadi, G.B., Moon, C., and Kim, K.C., Flow Boiling Visualization and Heat Transfer in Metal-Foam-Filled Mini Tubes - Part II: Developing Predictive Methods for Heat Transfer Coefficient and Pressure Drop, Int. J. Heat Mass Transf., vol. 98, pp. 868-878, 2016. 4. Azizifar, S., Ameri, M., and Behroyan, I., Subcooled Flow Boiling of Water in a Metal-Foam Tube: An Experimental Study, Int. Commun. Heat Mass Transf., vol. 118, p. 104897, 2020. 5. Cao, Y., Ayed, H., Anqi, A.E., Tutunchian, O., Dizaji, H.S., and Pourhedayat, S., Helical Tube-In-Tube Heat Exchanger with Corrugated Inner Tube and Corrugated Outer Tube; Experimental and Numerical Study, Int. J. Therm. Sci., vol. 170, pp. 107-139, 2021.
|
|