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Open AccessArticle

Biosynthesized Silica Nanosuspension as Thermal Fluid in Parabolic Solar Panels

Centro de Estudios y de Investigación en Biotecnología (CIBIOT), Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1ª No. 70-01, Medellín 050031, Colombia
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Received: 15 December 2020 / Revised: 12 January 2021 / Accepted: 14 January 2021 / Published: 25 January 2021
In this work, the production of biologically synthesized silica nanoparticles was proposed to prepare a nanosuspension as a thermal fluid in parabolic solar panels at the laboratory level. Silica nanoparticles were produced from construction sand in two stages. Biosynthesis broth was produced by Aspergillus niger aerated fermentation in a 1 L bioreactor for 9 days. Each supernatant was contacted with 18% construction sand in a 500 L reactor with mechanical agitation, at a temperature of 25 °C, and a contact time of 30 min. Subsequently, the separation process was carried out. For day 9, a pH value of 1.71 was obtained as well as acid concentrations of 15.78 g/L for citrus and 4.16 g/L for malic. The metal extraction efficiency of Si nanoparticles was 19%. The vibration peaks in the FTIR were characteristic of the presence of silica nanoparticles in wavenumbers 1020 cm−1 and 1150 cm−1. Finally, a prototype solar radiation test bench for parabolic systems was built and provided with a radiation source that falls on a translucent pipe that transports the nanoparticles, which has a pump and a series of thermocouples. The heat capacity of the biotechnologically produced silica nanoparticle suspension was 0.72 ± 0.05 kJ/kgK, using material and energy balances in the flow circuit. View Full-Text
Keywords: parabolic solar panels; nanofluids; silica nanoparticles; biosynthesis; solar energy materials parabolic solar panels; nanofluids; silica nanoparticles; biosynthesis; solar energy materials
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MDPI and ACS Style

Corzo-Deluquez, E.; Pineda-Muñoz, L.; Ruíz-Chamorro, A.; Ocampo-López, C.; Ramírez-Carmona, M.; Rendón-Castrillón, L. Biosynthesized Silica Nanosuspension as Thermal Fluid in Parabolic Solar Panels. Entropy 2021, 23, 142. https://0-doi-org.brum.beds.ac.uk/10.3390/e23020142

AMA Style

Corzo-Deluquez E, Pineda-Muñoz L, Ruíz-Chamorro A, Ocampo-López C, Ramírez-Carmona M, Rendón-Castrillón L. Biosynthesized Silica Nanosuspension as Thermal Fluid in Parabolic Solar Panels. Entropy. 2021; 23(2):142. https://0-doi-org.brum.beds.ac.uk/10.3390/e23020142

Chicago/Turabian Style

Corzo-Deluquez, Enrique; Pineda-Muñoz, Lina; Ruíz-Chamorro, Adiela; Ocampo-López, Carlos; Ramírez-Carmona, Margarita; Rendón-Castrillón, Leidy. 2021. "Biosynthesized Silica Nanosuspension as Thermal Fluid in Parabolic Solar Panels" Entropy 23, no. 2: 142. https://0-doi-org.brum.beds.ac.uk/10.3390/e23020142

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