In this research, an inclined three-dimensional nanofluid-based tube-on-sheet flat plate solar collector (FPSC) working under laminar conjugated mixed convection heat transfer is numerically modeled. The working fluid is selected to be alumina/water (Al2O3/water) and results from heat transfer, entropy generation, and pressure drop points of view are being presented for various prominent parameters, namely volume fraction, nanoparticles diameter, Richardson and Reynolds numbers. According to the simulations, Nusselt number decreases as the Richardson number or volume fraction of the nanofluid rises, whereas heat transfer coefficient experiences an augmentation when volume concentration and the Richardson number surge. Also, data reveal that total entropy generation rate of the system declines when the alumina/water nanofluid is utilized inside the system as the volume fraction or the Richardson number increases. Additionally, it is found that increasing the nanoparticle volume concentration or the Richardson number diminishes the pressure drop considerably, whereas friction factor substantially proliferates as the Richardson number or volume fraction rises. Eventually, employment of larger alumina nanoparticles mean diameter eventuates in providing lower Nusselt number and apparent friction factor while it increases the pressure drop and heat transfer coefficient. Finally, comparing the efficiency of the presented FPSC design with those available in the literature shows a superior performance by the present design with its maximum occurring at 2 vol %.
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August 2017
Research-Article
Numerical Study on Conjugated Laminar Mixed Convection of Alumina/Water Nanofluid Flow, Heat Transfer, and Entropy Generation Within a Tube-on-Sheet Flat Plate Solar Collector
Mohammad Charjouei Moghadam,
Mohammad Charjouei Moghadam
Department of Industrial Engineering,
University of Bologna,
Forli 47121, Italy
University of Bologna,
Forli 47121, Italy
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Mojtaba Edalatpour,
Mojtaba Edalatpour
Department of Mechanical
and Manufacturing Engineering,
Miami University,
Oxford, OH 45056
e-mail: edalatm@miamioh.edu
and Manufacturing Engineering,
Miami University,
Oxford, OH 45056
e-mail: edalatm@miamioh.edu
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Juan P. Solano
Juan P. Solano
Departamento de Ingeniería
Térmica y de Fluidos,
Universidad Politécnica de Cartagena,
Campus de Excelencia Internacional Regional
“Campus Mare Nostrum,”
Cartagena 30202, Spain
Térmica y de Fluidos,
Universidad Politécnica de Cartagena,
Campus de Excelencia Internacional Regional
“Campus Mare Nostrum,”
Cartagena 30202, Spain
Search for other works by this author on:
Mohammad Charjouei Moghadam
Department of Industrial Engineering,
University of Bologna,
Forli 47121, Italy
University of Bologna,
Forli 47121, Italy
Mojtaba Edalatpour
Department of Mechanical
and Manufacturing Engineering,
Miami University,
Oxford, OH 45056
e-mail: edalatm@miamioh.edu
and Manufacturing Engineering,
Miami University,
Oxford, OH 45056
e-mail: edalatm@miamioh.edu
Juan P. Solano
Departamento de Ingeniería
Térmica y de Fluidos,
Universidad Politécnica de Cartagena,
Campus de Excelencia Internacional Regional
“Campus Mare Nostrum,”
Cartagena 30202, Spain
Térmica y de Fluidos,
Universidad Politécnica de Cartagena,
Campus de Excelencia Internacional Regional
“Campus Mare Nostrum,”
Cartagena 30202, Spain
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received November 26, 2016; final manuscript received May 3, 2017; published online June 8, 2017. Assoc. Editor: Wojciech Lipinski.
J. Sol. Energy Eng. Aug 2017, 139(4): 041011 (12 pages)
Published Online: June 8, 2017
Article history
Received:
November 26, 2016
Revised:
May 3, 2017
Citation
Charjouei Moghadam, M., Edalatpour, M., and Solano, J. P. (June 8, 2017). "Numerical Study on Conjugated Laminar Mixed Convection of Alumina/Water Nanofluid Flow, Heat Transfer, and Entropy Generation Within a Tube-on-Sheet Flat Plate Solar Collector." ASME. J. Sol. Energy Eng. August 2017; 139(4): 041011. https://doi.org/10.1115/1.4036854
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