Measurements of the performance of the experimental salt-gradient solar pond at Makkah one year after commissioning

Abdullah, A. A.; Fallatah, H.M.; Lindsay, K. A.; Oreijah, Mowffaq

doi:10.1016/j.solener.2017.04.040

Cited by 23 publications

(9 citation statements)

References 25 publications

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“…This thermal phenomenon was first reported in Lake Madoc (Romania) with bottom temperatures of up to 70 °C at 1.3 m depth (Kalecsinsky, 1902). Likewise, the mechanism has been shown to work under cold conditions such as Lake Vanda (Antarctica) that is covered with 3 ~ 4 m thick ice layer and exhibits 25 °C temperature at its deepest parts (Abdullah et al, 2017).…”

Section: Introductionmentioning

confidence: 73%

Feasibility of Saline Gradient Solar Ponds as Thermal Energy Sources in Saskatchewan, Canada

Ito¹,

Azam²

2019

J ENVIRON INFORM LET

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Advancement of renewable energy is critical for sustainable development. This paper evaluates the feasibility of saline gradient solar ponds (SGSP) as an alternative energy source for Saskatchewan, Canada. The main achievements include global appraisal of SGSP from theoretical and practical perspectives, assessment of salinity and climatic criteria for SGSP potential, understanding of heat transfer mechanisms affected by thermophysical properties, and numerical modeling to simulate transient heat diffusion in SGSP. Results indicated that Saskatchewan is ideal for thermal energy harvesting from saline water bodies because of high solar insolation (1100 to 1400 kWh/m 2). The solar radiation in such systems is captured under a salt concentration gradient. Locally, ten potash tailings sites (360 g/L or 36% salt) and two saline water lakes (250 g/L or 25% salt) are potentially suitable for SGSP deployment. It was found that thermal conductivity increases with temperature but decreases with water salinity increase (0.55 to 0.675 W/mK) and the opposite is true for density (1000 to 1200 kg/m 3). Similarly, specific heat capacity slightly increases with temperature and inversely correlates with salinity (3000 to 4200 J/kg K). Furthermore, the heat diffusion model adequately simulated the temperature distribution for a typical SGSP in a potash tailings containment facility. For the investigated month of July (highest solar insolation), the temperatures increased from an initial value of at 20 to 52 º C at top to 37 º C at bottom. A comprehensive risk assessment of this method is required to protect air, water, soil, and biota at specific sites.

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Section: Introductionmentioning

confidence: 73%

Feasibility of Saline Gradient Solar Ponds as Thermal Energy Sources in Saskatchewan, Canada

Ito¹,

Azam²

2019

J ENVIRON INFORM LET

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“…This is the configuration of the promising method of generating renewable energy through electricity with a solar pond, see e.g. Abdullah et al [35], and the present work may have a bearing on how to add an additive to stabilize the solar pond and ensure it functions in an optimal way.…”

Section: Introductionmentioning

confidence: 76%

“…A solar pond is a mechanism whereby solar energy is harnessed through a thermosolutal process and converted into renewable electric energy, cf. Abdullah et al [35]. A solar pond consists of a layer of salt water approximately 1-2 m thick in a horizontal configuration with direct access to solar radiation.…”

Section: Discussionmentioning

confidence: 99%

Thermosolutal Convection with a Navier–Stokes–Voigt Fluid

Straughan

2020

Appl Math Optim

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We present a model for convection in a Navier–Stokes–Voigt fluid when the layer is heated from below and simultaneously salted from below, the thermosolutal convection problem. Instability thresholds are calculated for thermal convection with a dissolved salt field in a complex viscoelastic fluid of Navier–Stokes–Voigt type. The Kelvin–Voigt parameter is seen to play a very important role in acting as a stabilizing agent when the convection is of oscillatory type. The quantitative size of this effect is displayed. Nonlinear stability is also discussed, and it is briefly indicated how the global nonlinear stability limit may be increased, although there still remains a region of potential sub-critical instability, especially when the Kelvin–Voigt parameter increases.

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“…The surface dimensions of the pond are 25x25 m 2 and the depth is 0.80 m, the lower limit of which is raised to a temperature of 90 о С [7]. In 1973, Indian scientist Jain launched a 55x22 m 2 solar pond and found that the bottom temperature of the pond reached 80 о С [8]. In 1975, American scientist Nielsen used a solar pond with a depth of 2.5 m and a surface area of 200 m 2 .…”

Section: Introductionmentioning

confidence: 99%

“…In 1975, American scientist Nielsen used a solar pond with a depth of 2.5 m and a surface area of 200 m 2 . In the lower zone of this pond, the temperature rose to 69 о С [8]. Energy and exergy analyzes of a 100x100 m 2 solar pond in Indian climatic conditions were studied by Indian scientist Ranjan.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the temperature regime of the solar pond in the climatic conditions of the south of Uzbekistan

Узаков

Elmurodov²,

Davlonov³

2022

IOP Conf. Ser.: Earth Environ. Sci.

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This article is devoted to the experimental study of the temperature regimes of the solar pond in the southern climatic conditions of Uzbekistan. The research was conducted in an experimental version of a solar pond that accumulates low-potential heat. According to research, when taking heat from a salt solar pond, without a coating on its upper surface and comparing the results of a glass-covered experiment is 10-15% higher than that of a glass-covered experiment, when the ambient temperature is 34 °C and solar radiation is 973 W/m2 it is scientifically based that the temperature of saline solar pond water with a concentration of 25-30% rises to a temperature of 53 °C in the lower part of the pond and that the energy storage efficiency of the lower convective zone of the solar pond increases in parallel with increasing solar radiation

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Measurements of the performance of the experimental salt-gradient solar pond at Makkah one year after commissioning

Cited by 23 publications

References 25 publications

Feasibility of Saline Gradient Solar Ponds as Thermal Energy Sources in Saskatchewan, Canada

Feasibility of Saline Gradient Solar Ponds as Thermal Energy Sources in Saskatchewan, Canada

Thermosolutal Convection with a Navier–Stokes–Voigt Fluid

Experimental study of the temperature regime of the solar pond in the climatic conditions of the south of Uzbekistan

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