Development of an off-grid solar energy powered reverse osmosis desalination system for continuous production of freshwater with integrated photovoltaic thermal (PVT) cooling

Monjezi, Alireza Abbassi; Chen, Yingxue; Vepa, Ranjan; Kashyout, Abd El-Hady B.; Hassan, Gasser E.; Fath, Hassan E.S.; Kassem, Abd El-Wahab S.; Shaheed, M. H.

doi:10.1016/j.desal.2020.114679

Cited by 47 publications

(16 citation statements)

References 21 publications

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“…Reverse osmosis is a membrane separation method whereby miscible solutions of different concentration are separated by a membrane that is permeable to the solvent but nearly impermeable to the solute (Kim et al 2020;Ligaraya et al 2020;Monjezi et al 2020). Reverse osmosis derives its name from the technical meaning of the process.…”

Section: Introductionmentioning

confidence: 99%

Process simulation of modelled reverse osmosis for desalination of seawater

Salahudeen

2021

Water Practice and Technology

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Model equations for prediction of process parameters of reverse osmosis for desalination of seawater were developed via mathematical derivation from basic equations for reverse osmosis process. A model equation relating the interfacial solute concentration () with the process pressure difference () was developed. Taking the of a reverse osmosis as the basic independent variable, further model equations relating other process parameters such as the solute concentration polarity , water flux , osmotic pressure , water output rate (q), power density (Pd) and specific energy consumption (SEC) were developed. Simulation of a hypothetical reverse osmosis data using Microsoft Excel Worksheet and a Microsoft Windows 10 on a 64-bit operating system was carried out. Simulation results showed that the optimum fluid bulk concentration was = 0.0004 mole/cm3. The optimum rate of increase in the solute rejection factor per unit rise in ΔP was 0.45%. The optimum solute rejection factor was 97.6%. The optimum water output rate, specific energy consumption and power density were 103.2 L/h, 3.65 kWh/m3 and 6.09 W/m2, respectively.

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Section: Introductionmentioning

confidence: 99%

Process simulation of modelled reverse osmosis for desalination of seawater

Salahudeen

2021

Water Practice and Technology

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“…Many researchers and engineers utilize these software programs, for instance, ROSA, TORAY, etc., to project the performance of RO systems, 51,52 while others use them to validate their theoretical models. 33,53 TORAY DS2 software is capable of estimating the properties of the permeate and concentrate waters in addition to the power consumed by the pumps used in the RO system. Four TM810V RO membranes in one vessel with a recovery ratio of 40% are employed in the present study.…”

Section: Reverse Osmosis Unitmentioning

confidence: 99%

“…31,32 Many researchers have studied solar-powered RO systems. Monjezi et al 33 investigated a small PVT-powered RO unit that is meant to work entirely off the grid. The results showed that the specific energy consumption is about 4.27 kWh/m 3 of freshwater without seawater preheating by PVT collectors, while it is approximately 4.15 kWh/m 3 with seawater preheating.…”

mentioning

confidence: 99%

Performance and economic analysis of hybrid solar collectors‐powered integrated adsorption/reverse osmosis multigeneration system

Hassan

Elwardany

Sekiguchi

et al. 2022

Intl J of Energy Research

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Summary In this study, theoretical performance investigation and economic analysis of hybrid solar system‐driven integrated reverse osmosis (RO)/adsorption multigeneration system have been performed. The system delivers the required cooling during summer operation via adsorption chiller freshwater and electricity via RO unit and photovoltaic/thermal (PVT) collectors, respectively, throughout the year for building in Alexandria, Egypt during the typical daily working hours. A hybrid solar system comprising evacuated tube collectors (ET) and PVT collectors is proposed to supply the required heat and electricity. Four configurations: Case 1 has only PVT, Case 2 has 75% PVT and 25% ET, Case 3 has 50% PVT and 50% ET, and Case 4 has 25% PVT and 75% ET. A dynamic model for the performance of the proposed multigeneration system is constructed and analyzed using MATLAB software. The results show that increasing PVT area share improves system energy and exergy efficiencies and economic performance but at the expense of produced cooling capacity. The average cooling of the adsorption chiller is 5.8, 7.6, 9.5, and 11.5 kW for Cases 1 to 4, respectively, and RO specific energy consumption is about 2.467 kWh/m3 of freshwater. Energy savings of approximately 32.95 MWh/year are achieved for Case 1, while its CO2 emissions cut is about 18.06 of equivalent tonCO2 per year. The Payback periods of the proposed system are about 10.3, 11.68, 15.85, and 24.3 years for Case 1 to Case 4, respectively, demonstrating the system economic viability.

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“…The collaboration will have immense impact in terms of; (i) providing clean water to remote areas at a lower cost, and (ii) opening up further research avenues in desalination and green energy. A recent published article 87 demonstrated the design and numerical model activities for the development of the desalination system of an off-grid solar energy-powered RO for continuous production of freshwater with PVT cooling and the recovery of the PVT cooling heat for RO feedwater pre-heating. This work aimed to quantify the increase in the efficiency of PV cells and RO desalination for the application of seawater as the cooling medium for PV.…”

Section: Re-desalination Systems In Egyptmentioning

confidence: 99%