Feasibility analysis of reverse osmosis desalination driven by a solar pond in Mediterranean and semi-arid climates

Mansouri, A. El; Hasnaoui, M.; Amahmid, A.; Hasnaoui, Safae

doi:10.1016/j.enconman.2020.113190

Cited by 36 publications

(18 citation statements)

References 47 publications

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“…The input parameters of the incorporated mathematical models used to solve the four integrated theoretical models proposed in the current study are presented in Table 1. These geometrical details and thermal and optical properties of the different components of this hybrid system have been also described in the studies done by 39,45‐47,49‐56 …”

Section: Mathematical Modelingmentioning

confidence: 86%

“…This section provides a detailed description of equations that describe a simulation model of an RO desalination unit with an energy recovery device as follows below, [51][52][53][54] the following assumptions are used:…”

Section: Ro Unit With Energy Recovery Devicementioning

confidence: 99%

“…These geometrical details and thermal and optical properties of the different components of this hybrid system have been also described in the studies done by. 39,[45][46][47][49][50][51][52][53][54][55][56]…”

Section: Ro Unit With Energy Recovery Devicementioning

confidence: 99%

“…This section provides a detailed description of equations that describe a simulation model of an RO desalination unit with an energy recovery device as follows below, 51‐54 the following assumptions are used: The process is isothermal. Heat losses to the surroundings are neglected. The system is operated under steady‐state conditions. The membrane permeates water mass flow rate (

{\overset{m}{true}}_{pw 2}

) is calculated as follows:

{\overset{m}{true}}_{pw 2} = A_{normalm} . k_{normalw} . (∆ P - ∆ π)

The membrane mass balance equation is calculated as follows:

{\overset{m}{true}}_{fw 4} = {\overset{m}{true}}_{pw 2} + {\overset{m}{true}}_{bw}

The membrane salt mass balance equation is calculated as follows:

({\overset{m}{true}}_{fw 4} . C_{s, fw 4}) = ({\overset{m}{true}}_{pw 2} . C_{s, pw 2}) + ({\overset{m}{true}}_{bw} . C_{s, bw})

The average trans membrane pressure Δ P , (kPa) is calculated as follows:

∆ P = P_{fw 4} - P_{pw 2} - (\frac{true}{∆ P_{drop}})

The pressure drop across the membrane channel Δ P drop , (kPa) is calculated as follows:

∆ P_{drop} = 9.5 \times 10^{8}

…”

Section: Mathematical Modelingmentioning

confidence: 99%

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Performance optimization of the hybrid HDH‐RO desalination system powered by photovoltaic‐thermal modules using solar dish concentrators

Abdelgaied

Kabeel

Abdullah

2022

Intl J of Energy Research

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The lack of pure water and electricity in remote regions pushes to simulate of an innovative high-productive hybrid desalination system with the lowest power consumption rates, and this represents a major challenge recently. To achieve this goal, the present study aimed to simulate an innovative hybrid HDH-RO desalination system powered by photovoltaic-thermal modules and a solar dish concentrator. The proposed innovative hybrid system is characterized by integrating two common technologies for pure water production namely: HDH desalination unit and RO desalination unit with an energy recovery device. In order to achieve the highest production rates of pure water with the lowest possible rates of power consumption, the proposed innovative hybrid system was provided with photovoltaic-thermal modules and solar dish concentrators, as preheating units to heat the feed water before its entering the HDH-RO desalination unit. The photovoltaic-thermal modules have a dual function: enhancing the performance of photoelectric conversion, and simultaneously preheating the feed water before it enters the spiral coil of the solar dish concentrator. The solar dish concentrator with a solar thermal receiver was purposed to raise the feed water temperatures before it enters the HDH-RO desalination unit, to improve evaporation rates within the HDH unit as well as increase the rates of water permeating for the RO unit. The results indicated that the utilization of the photovoltaic-thermal modules and solar dish concentrators, as preheating units to heat the feed water before its entering the HDH-RO desalination unit has positive effects in terms of increasing the pure water productivity and reducing the rates of power consumption. The productivity of pure water for the innovative hybrid system ranged between 793 and 861 kg/h, with an improvement of 25.

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Section: Mathematical Modelingmentioning

confidence: 86%

Section: Ro Unit With Energy Recovery Devicementioning

confidence: 99%

Section: Ro Unit With Energy Recovery Devicementioning

confidence: 99%

{\overset{m}{true}}_{pw 2}

) is calculated as follows:

{\overset{m}{true}}_{pw 2} = A_{normalm} . k_{normalw} . (∆ P - ∆ π)

The membrane mass balance equation is calculated as follows:

{\overset{m}{true}}_{fw 4} = {\overset{m}{true}}_{pw 2} + {\overset{m}{true}}_{bw}

The membrane salt mass balance equation is calculated as follows:

({\overset{m}{true}}_{fw 4} . C_{s, fw 4}) = ({\overset{m}{true}}_{pw 2} . C_{s, pw 2}) + ({\overset{m}{true}}_{bw} . C_{s, bw})

The average trans membrane pressure Δ P , (kPa) is calculated as follows:

∆ P = P_{fw 4} - P_{pw 2} - (\frac{true}{∆ P_{drop}})

The pressure drop across the membrane channel Δ P drop , (kPa) is calculated as follows:

∆ P_{drop} = 9.5 \times 10^{8}

…”

Section: Mathematical Modelingmentioning

confidence: 99%

See 2 more Smart Citations

Performance optimization of the hybrid HDH‐RO desalination system powered by photovoltaic‐thermal modules using solar dish concentrators

Abdelgaied

Kabeel

Abdullah

2022

Intl J of Energy Research

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“…This last one is an artificial saltwater pond offering an alternative way to capture and store solar energy as sensible heat. The latter is useful for various applications [1] like power generation [2], desalination [3] and lower temperature industrial processes [1]. Usually, a SGSP consists of three horizontal saltwater zones: Upper Convective Zone (UCZ), Non-Convective Zone (NCZ) and Lower Convective Zone (LCZ) [4].…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of solar energy storage by a salt gradient solar pond in several Moroccan cities

2022

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Numerical investigation of solar energy storage by a Salt Gradient Solar Pond (SGSP) in several Moroccan cities (Marrakesh, Ouarzazate, Tangier and Ifrane) is presented in this paper. For this purpose, the SGSP considered is assimilated to an open parallelipedic cavity in which the vertical and bottom walls are thermally insulated. The one-dimensional numerical model developed in Python programming language is based on the energy balance of each SGSP zone in which the heat losses via the SGSP free surface are retained. The numerical results obtained from the model developed are satisfactorily compared and validated against those obtained experimentally and numerically from a literature study. According to the results of one year of the SGSP operation, the storage zone temperature and the energy stored in the SGSP located in Ouarzazate city are the highest and reach maximum values in July (about 128 °C and 146 MJ respectively). Moreover, comparisons between different mass flow rates (0.01 Kg/s, 0.05 Kg/s and 0.09 Kg/s) of heat exchanger placed in the storage zone show that the optimal one is 0.09 Kg/s as it ensures the maximum energy extraction.

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Effect of design and operation parameters on solar‐driven membrane‐based desalination systems: An overview

Abdelrazik,

Sharafeldin,

Elwardany

et al. 2024

WIREs Energy & Environment

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Due to the scarcity of freshwater resources in many arid regions of the world, as well as rapidly growing populations and industrialization, various desalination technologies have been developed and enhanced to improve the performance of saline water purification with high quality. Integrating solar energy technologies with desalination systems would alleviate the running out of fossil fuel sources, reduce costs, and improve energy efficiency. Solar‐powered desalination systems could be a viable and efficient method for treating highly saline water for human consumption. Obtaining reliable and accurate design parameters for such hybrid systems plays a significant role in determining the system performance of solar‐driven desalination systems. The present review provides a comprehensive review of various solar‐driven membrane‐based desalination systems to investigate the impact of design and operation parameters for solar and desalination units on the effectiveness of the hybrid solar/desalination system. Recent advancements in utilizing numerous solar energy sources for desalination are analyzed herein. The economic implications of various membrane desalination operations for different solar energy sources are also discussed. It was revealed that the solar system design parameters, desalination unit characteristics, feed water properties, and climate conditions all affect the functionality and productivity of the membrane‐based solar‐powered desalination system. The feed pressure, number and shape of membranes, and the integrated solar system, all have significant impacts on the performance of the hybrid system. This article provides a pathway for desalination researchers to select the optimal design and operation parameters for hybrid solar‐powered membrane‐based desalination systems. Notably, they are found more feasible and sustainable than traditional desalination processes. Several related conclusions and future perspectives are reported herein.This article is categorized under: Sustainable Energy > Solar Energy

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Feasibility analysis of reverse osmosis desalination driven by a solar pond in Mediterranean and semi-arid climates

Cited by 36 publications

References 47 publications

Performance optimization of the hybrid HDH‐RO desalination system powered by photovoltaic‐thermal modules using solar dish concentrators

Performance optimization of the hybrid HDH‐RO desalination system powered by photovoltaic‐thermal modules using solar dish concentrators

Numerical investigation of solar energy storage by a salt gradient solar pond in several Moroccan cities

Effect of design and operation parameters on solar‐driven membrane‐based desalination systems: An overview

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