Effect of Al2O3 and MgO nanofluids in heat pipe solar collector for improved efficiency

In this work, a heat pipe solar collector (HPSC) utilization system is proposed. An experimental system was designed to analyze the effect of nanofluid concentration on the efficiency of the solar collector. The HPSC system was investigated with low concentration of water-based Al 2 O 3 and MgO as t...

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Bibliographic Details
Published in:Applied nanoscience 2023, Vol.13 (1), p.595-604
Main Authors: Rangabashiam, Devaraj, Ramachandran, S., Sekar, Manigandan
Format: Article
Language:English
Subjects:
Aluminum oxide
Chemistry and Materials Science
Efficiency
Flow velocity
Fourier transforms
Heat pipes
Magnesium oxide
Materials Science
Membrane Biology
Nanochemistry
Nanofluids
Nanotechnology
Nanotechnology and Microengineering
Optical properties
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Summary:In this work, a heat pipe solar collector (HPSC) utilization system is proposed. An experimental system was designed to analyze the effect of nanofluid concentration on the efficiency of the solar collector. The HPSC system was investigated with low concentration of water-based Al 2 O 3 and MgO as the working medium. To examine the structural and optical properties, the X-ray diffraction (XRD) and Fourier transform-infrared (FT-IR) were performed. The HSPC exhibited higher efficiency when they treated with MgO nanofluids. As the concentration of the nanofluid increases, the efficiency of the solar collector is increased irrespective of the working medium. Nevertheless, compared to the Al 2 O 3 , MgO reported superior efficiency irrespective of the concentration. Second, the entropy generation for MgO was lower and highest for the neat water. Further, the flow rate of the nanofluids increases the collector efficiency spikes. Experimental system shows that the maximum performance of the HPSC is possible by employing the nanofluids to the existing system in an optimized concentration.
ISSN:2190-5509
2190-5517
DOI:10.1007/s13204-021-01865-w