Recent Advances in Osmotic Energy Generation via  Pressure-Retarded Osmosis (PRO): A Review

Kim, Jihye; Jeong, Kwanho; Park, Myoung Jun; Shon, Ho Kyong; Kim, Joon Ha

doi:10.3390/en81011821

Cited by 70 publications

(39 citation statements)

References 78 publications

(101 reference statements)

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“…Pressure retarded osmosis (PRO), 20 reversible electrodialysis (RED), 21 capacitive mixing (CapMix), 22 mixing entropy batteries (MEB), 17 and neutralization batteries (NB) 23 are some of the relevant studied systems. The working principle of these technologies is to promote controlled mixing of diluted and concentrated solutions by means of solvent flow, as in case of PRO, or of solute flow, as in the case of RED, CapMix, MEB, and NB.…”

Section: Salinity and Proton Gradient Energy-based Systemsmentioning

confidence: 99%

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Morais¹,

Lima²,

Gomes³

et al. 2018

J. Braz. Chem. Soc.

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Ever-rising energy demand, fossil fuel dependence, and climate issues have harmful consequences to the society. Exploring clean and renewable energy to diversify the world energy matrix has become an urgent matter. Less explored or unexplored renewable energy sources like the salinity and proton gradient energy are an attractive alternative with great energy potential. This paper discusses important electrochemical systems for energy conversion from natural and artificial concentration gradients, namely capacitive mixing (CapMix), mixing entropy batteries (MEB), and neutralization batteries (NB); the working principle and thermodynamic formalism of these systems; and the materials employed in the assembly of these systems.

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Section: Salinity and Proton Gradient Energy-based Systemsmentioning

confidence: 99%

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Morais¹,

Lima²,

Gomes³

et al. 2018

J. Braz. Chem. Soc.

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“…The progress of RED technology also evolved around the membrane technology. In [10], electro dialyzer equipped with a 0.19-mm spacer was tested with different concentration of dilute and power peak of 460 mW/m 2 was found at 0.54 cm/s linear flow velocity that gives an estimation of $6.79/kWh for the investment cost. J.Vermaan in 2009 has evaluated 6 commercial membrane to compare their performance and found out the best membrane could produce up to 1.2 W/m 2 with thermodynamic efficiency is around 14% -35% [13].…”

Section: Reverse Electrodialysis (Red)mentioning

confidence: 99%

Harnessing ‘Blue energy’: A Review on Techniques and Preliminary Analysis

Hasan¹,

Khai²,

Kannan³

et al. 2017

MATEC Web Conf.

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Abstract.Energy harvesting from the ocean called 'blue energy' began in the 1970's and should have reached its peak by today, but due to varying interests in the field and the growing potentials of other sources, its development was delayed. Recently, it receives more interest and a number of institutes has deployed their pilot plant. Blue energy is a type of renewable energy based on salinity gradient where power is generated from different salt concentration in saltwater (the ocean) and freshwater (river). When the mixing of seawater and freshwater occurs, an increase in the entropy of this system is observed and free energy is dissipated. This research aims to identify and compare existing techniques or methods of blue energy harvesting developed over time. Five different techniques were reviewed, looking at their principle of operation, configuration and performance. Based on the review, capacitive mixing method was selected for further analysis. Experiment was conducted to evaluate different factor including the concentration of sea water, volumes and type of electrodes. The highest output power obtained is 89.7 mW, while the average is about 30 mW.

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“…SGE has different types in practice, one of the most important on is Pressure-retarded osmosis (PRO). In PRO, using a semi-permeable membrane, water is transported from the feed to the draw side and generate power with the help of volumetric water flow operates a hydro-turbine [7]. In early stages reverse osmosis (RO) membranes were used.…”

Section: Introductionmentioning

confidence: 99%

Applicability of pressure retarded osmosis power generation technology in Istanbul

Paşaoğlu

Koyuncu

Şengür-Taşdemir

et al. 2018

PEN

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In this study, the applicability of pressure retarded osmosis power generation was investigated in order to meet the electricity demand in Turkey. Pressure retarded osmosis (PRO) is a method that converting salinity gradients to power using a semi-permeable membrane against an applied pressure and PRO is one of the promising candidates to reduce fossil fuel dependency. In PRO, water is transported from a low concentrated feed solution to a highconcentrated draw solution. According to the literature findings, in order to produce 1MW of electricity 1m 3 /s fresh water flow is needed. Turkey is surrounded on three sides by water and has a big potential to develop this technology. Riva River is investigated in the scope this study. Currently Turkey's total installed power capacity reached 85.200 MW at the end of 2017.Calculations of PRO power generation reveals that it is possible to generate 25,45 MW, If using 5% of total river flow.

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Recent Advances in Osmotic Energy Generation via Pressure-Retarded Osmosis (PRO): A Review

Cited by 70 publications

References 78 publications

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Harnessing ‘Blue energy’: A Review on Techniques and Preliminary Analysis

Applicability of pressure retarded osmosis power generation technology in Istanbul

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