{"title":"Numerical Simulations and Experimental Comparison on Thermal and Fluid Flow Characteristics of Metal Foam Double Tube Heat Exchanger","authors":"Aniket Dhavale, Mandar Lele","doi":"10.1615/jpormedia.2023049772","DOIUrl":null,"url":null,"abstract":"The paper presents a numerical investigation using ANSYS Fluent v2021 to study a metal foam heat exchanger integrated into the absorber plate of a double tube heat exchanger for a solar flat plate collector. The goal is to analyze the system’s thermal and fluid flow behavior. Water is employed as the working fluid in the simulations. Three types of metal foam (Nickel, Copper, and Aluminum) with porosities ranging from 0.80 to 0.90 and pore densities of 10 to 30 are considered. The simulations are validated against experimental data obtained under similar operating conditions. In the experiments, a nickel metal foam with a porosity of 0.90 and a pore density of 10 PPI is inserted into the double tube heat exchanger's annular space. Temperature and pressure drop measurements are taken with and without the metal foam. The numerical simulations adopt the Reynolds-Averaged Navier-Stokes (RANS) equations with the k-epsilon turbulence model to simulate fluid flow and heat transfer. The metal foam heat exchanger is modeled as a porous medium. The investigation aims to identify the optimal metal foam configuration for enhanced thermal performance in solar thermal applications, providing insights for engineering design and optimization. The performance evaluation criteria enable a comprehensive understanding of the effectiveness and applicability of the metal foam heat exchanger for solar thermal applications, providing valuable insights for engineering design and optimization.","PeriodicalId":50082,"journal":{"name":"Journal of Porous Media","volume":"20 1","pages":"0"},"PeriodicalIF":2.5000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Porous Media","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1615/jpormedia.2023049772","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The paper presents a numerical investigation using ANSYS Fluent v2021 to study a metal foam heat exchanger integrated into the absorber plate of a double tube heat exchanger for a solar flat plate collector. The goal is to analyze the system’s thermal and fluid flow behavior. Water is employed as the working fluid in the simulations. Three types of metal foam (Nickel, Copper, and Aluminum) with porosities ranging from 0.80 to 0.90 and pore densities of 10 to 30 are considered. The simulations are validated against experimental data obtained under similar operating conditions. In the experiments, a nickel metal foam with a porosity of 0.90 and a pore density of 10 PPI is inserted into the double tube heat exchanger's annular space. Temperature and pressure drop measurements are taken with and without the metal foam. The numerical simulations adopt the Reynolds-Averaged Navier-Stokes (RANS) equations with the k-epsilon turbulence model to simulate fluid flow and heat transfer. The metal foam heat exchanger is modeled as a porous medium. The investigation aims to identify the optimal metal foam configuration for enhanced thermal performance in solar thermal applications, providing insights for engineering design and optimization. The performance evaluation criteria enable a comprehensive understanding of the effectiveness and applicability of the metal foam heat exchanger for solar thermal applications, providing valuable insights for engineering design and optimization.
期刊介绍:
The Journal of Porous Media publishes original full-length research articles (and technical notes) in a wide variety of areas related to porous media studies, such as mathematical modeling, numerical and experimental techniques, industrial and environmental heat and mass transfer, conduction, convection, radiation, particle transport and capillary effects, reactive flows, deformable porous media, biomedical applications, and mechanics of the porous substrate. Emphasis will be given to manuscripts that present novel findings pertinent to these areas. The journal will also consider publication of state-of-the-art reviews. Manuscripts applying known methods to previously solved problems or providing results in the absence of scientific motivation or application will not be accepted. Submitted articles should contribute to the understanding of specific scientific problems or to solution techniques that are useful in applications. Papers that link theory with computational practice to provide insight into the processes are welcome.