Scale-up of reverse electrodialysis for energy generation from high concentration salinity gradients
نویسندگان
چکیده
منابع مشابه
High Efficiency in Energy Generation from Salinity Gradients with Reverse Electrodialysis
Renewable energy can be captured from the mixing of salt and fresh water in reverse electrodialysis. This paper investigates the energy efficiency of this process for feed waters that pass a reverse electrodialysis cell once and waters that pass multiple cells or electrode segments. So far, the maximum theoretical energy efficiency was considered to be 50% when the feed waters pass a single cel...
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Reverse electrodialysis (RED) can harness the Gibbs free energy of mixing when fresh river water flows into the sea for sustainable power generation. In this study, we carry out a thermodynamic and energy efficiency analysis of RED power generation, and assess the membrane power density. First, we present a reversible thermodynamic model for RED and verify that the theoretical maximum extractab...
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Salinity gradient energy, which is also known as Blue energy, is a renewable energy form that can be extracted from the mixing of two solutions with different salinities. About 80% of the current global electricity demand could potentially be covered by this energy source. Among several energy extraction technologie...
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The computer simulation program of a practical scale reverse electrodialysis process has been developed based on the program for saline water electrodialysis. The program is applied to compute the performance of an industrial-scale reverse electrodialysis stack (effective membrane area S = 1 m × 1 m = 1 m2, cell pair number N = 300 pairs). The stack operatingconditions are optimized. Seaw...
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We describe experimental and theoretical results that demonstrate the feasibility of power generation using concentration cells based on ionic concentration gradients and reverse electrodialysis. A peak power density of 0.2 (0.7) lW cm 2 and a maximum energy density of 0.4 (0.4) mJ cm 3 delivered in 3 h to a 2 (5) kX resistor were recorded using a microfiltration (anion exchange) membrane, resp...
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ژورنال
عنوان ژورنال: Journal of Membrane Science
سال: 2021
ISSN: 0376-7388
DOI: 10.1016/j.memsci.2021.119245