An Investigation into a Miniature Saltless Solar Pond

A simple, miniature saltless Solar Pond (SP) was designed and constructed in the present work. It consisted of a Plexiglas container with a square cross-section, within which cruciform baffles were suspended in the upper half of the pond, and copper coil tubing was fitted in the middle of the lower...

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Main Authors: Mervette El-Batouti, Mona M. Naim, Nouf F. Al Harby, Mahmoud M. Elewa
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/17/5974
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author Mervette El-Batouti
Mona M. Naim
Nouf F. Al Harby
Mahmoud M. Elewa
author_facet Mervette El-Batouti
Mona M. Naim
Nouf F. Al Harby
Mahmoud M. Elewa
author_sort Mervette El-Batouti
collection DOAJ
description A simple, miniature saltless Solar Pond (SP) was designed and constructed in the present work. It consisted of a Plexiglas container with a square cross-section, within which cruciform baffles were suspended in the upper half of the pond, and copper coil tubing was fitted in the middle of the lower zone to function as a heat exchanger without disturbing the pond’s inertia. Different variables’ effect on the water’s temperature rise at various vertical locations within the pond were investigated. These variables included the presence of the cruciform baffles, the inclination of a mirror fixed to the top rim of the pond, a glass transparent cover (GC), and the presence or absence of a gel thickening material to increase the water viscosity inside the SP, the climatic conditions, and the presence of glass wool (GW) in the lower section of the SP. For an experiment, an estimated energy balance was performed, and the thermal storage efficiency was calculated. The best obtained thermal storage efficiency was 32.58% in the presence of the cruciform baffles, a 45° inclination of a mirror fixed to the top rim of the SP, at an ambient temperature of 30 °C on a calm, sunny day with a wind speed of 7 km/h.
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spelling doaj.art-c6fdc2ce9c6342cf89837eb4e457c2d92023-11-23T13:33:22ZengMDPI AGMaterials1996-19442022-08-011517597410.3390/ma15175974An Investigation into a Miniature Saltless Solar PondMervette El-Batouti0Mona M. Naim1Nouf F. Al Harby2Mahmoud M. Elewa3Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21526, EgyptChemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria 21526, EgyptDepartment of Chemistry, College of Science, Qassim University, Qassim 52571, Saudi ArabiaArab Academy for Science, Technology and Maritime Transport, Alexandria P.O. Box 1029, EgyptA simple, miniature saltless Solar Pond (SP) was designed and constructed in the present work. It consisted of a Plexiglas container with a square cross-section, within which cruciform baffles were suspended in the upper half of the pond, and copper coil tubing was fitted in the middle of the lower zone to function as a heat exchanger without disturbing the pond’s inertia. Different variables’ effect on the water’s temperature rise at various vertical locations within the pond were investigated. These variables included the presence of the cruciform baffles, the inclination of a mirror fixed to the top rim of the pond, a glass transparent cover (GC), and the presence or absence of a gel thickening material to increase the water viscosity inside the SP, the climatic conditions, and the presence of glass wool (GW) in the lower section of the SP. For an experiment, an estimated energy balance was performed, and the thermal storage efficiency was calculated. The best obtained thermal storage efficiency was 32.58% in the presence of the cruciform baffles, a 45° inclination of a mirror fixed to the top rim of the SP, at an ambient temperature of 30 °C on a calm, sunny day with a wind speed of 7 km/h.https://www.mdpi.com/1996-1944/15/17/5974saltless non-convective solar pondlong-term solar energy storageconvection currentsthermal energycruciform bafflescorrosion
spellingShingle Mervette El-Batouti
Mona M. Naim
Nouf F. Al Harby
Mahmoud M. Elewa
An Investigation into a Miniature Saltless Solar Pond
Materials
saltless non-convective solar pond
long-term solar energy storage
convection currents
thermal energy
cruciform baffles
corrosion
title An Investigation into a Miniature Saltless Solar Pond
title_full An Investigation into a Miniature Saltless Solar Pond
title_fullStr An Investigation into a Miniature Saltless Solar Pond
title_full_unstemmed An Investigation into a Miniature Saltless Solar Pond
title_short An Investigation into a Miniature Saltless Solar Pond
title_sort investigation into a miniature saltless solar pond
topic saltless non-convective solar pond
long-term solar energy storage
convection currents
thermal energy
cruciform baffles
corrosion
url https://www.mdpi.com/1996-1944/15/17/5974
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