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Membranes 2014, 4(3), 447-468; doi:10.3390/membranes4030447
Article

Theoretical and Experimental Investigations of the Potential of Osmotic Energy for Power Production

1,2,* , 1
, 1
 and 3
Received: 11 May 2014; in revised form: 27 June 2014 / Accepted: 22 July 2014 / Published: 8 August 2014
(This article belongs to the Special Issue Membrane Hybrid Processes)
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Abstract: This paper presents a study on the potential of osmotic energy for power production. The study includes both pilot plant testing and theoretical modelling as well as cost estimation. A projected cost of £30/MWh of clean electricity could be achieved by using a Hydro-Osmotic Power (HOP) plant if a suitable membrane is used and the osmotic potential difference between the two solutions is greater than 25 bar; a condition that can be readily found in many sites around the world. Results have shown that the membrane system accounts for 50%–80% of the HOP plant cost depending on the salinity difference level. Thus, further development in membrane technology and identifying suitable membranes would have a significant impact on the feasibility of the process and the route to market. As the membrane permeability determines the HOP process feasibility, this paper also describes the effect of the interaction between the fluid and the membrane on the system permeability. It has been shown that both the fluid physical properties as well as the membrane micro-structural parameters need to be considered if further development of the HOP process is to be achieved.
Keywords: pressure retarded osmosis; osmotic energy; hydro-osmotic power (HOP); forward osmosis; specific energy consumption (SEC) pressure retarded osmosis; osmotic energy; hydro-osmotic power (HOP); forward osmosis; specific energy consumption (SEC)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Sharif, A.O.; Merdaw, A.A.; Aryafar, M.; Nicoll, P. Theoretical and Experimental Investigations of the Potential of Osmotic Energy for Power Production. Membranes 2014, 4, 447-468.

AMA Style

Sharif AO, Merdaw AA, Aryafar M, Nicoll P. Theoretical and Experimental Investigations of the Potential of Osmotic Energy for Power Production. Membranes. 2014; 4(3):447-468.

Chicago/Turabian Style

Sharif, Adel O.; Merdaw, Ali A.; Aryafar, Maryam; Nicoll, Peter. 2014. "Theoretical and Experimental Investigations of the Potential of Osmotic Energy for Power Production." Membranes 4, no. 3: 447-468.


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