Large scale energy storage using multistage osmotic processes: Approaching high efficiency and energy density

Simple item page
dc.contributor.authorBharadwaj, Devesh
dc.contributor.authorStruchtrup, Henning
dc.date.accessioned2017-07-18T14:53:15Z
dc.date.copyright2017en_US
dc.date.issued2017
dc.description.abstractWith the increase in ocean levels due to global warming, there is a desperate need for clean and renewable energy at this time, more than ever before. Although the economic front of technologies, such as wind and solar power, has shown improvement, the fact remains that these energy sources are intermittently available in nature. This calls for a reliable energy storage technology that can bridge the gap between the supply and demand of electricity, leading us to a world driven by clean and renewable energy. Here, we propose a process for storing electrical energy using engineered osmosis. To store electrical energy, a salty solution is separated into brine and fresh water streams using modified reverse osmosis. When there is a demand for electricity, the chemical potential is converted back into electrical work by mixing the solutions using a modified version of pressure retarded osmosis. With modelling and simulations, we demonstrate that the proposed process can achieve round trip efficiencies of 50–60% and energy densities equivalent to that of a 500 m high pumped-hydro plant. The results demonstrate a promising process to store electrical energy, which, unlike pumped-hydro, is unconstrained by geography.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipNSERC Discovery Granten_US
dc.identifier.citationBharadwaj, Devesh & Struchtrup, Henning. (2017). "Large scale energy storage using multistage osmotic processes: Approaching high efficiency and energy density." Sustainable Energy & Fuels 1, 599-614.en_US
dc.identifier.urihttp://dx.doi.org/10.1039/C6SE00013D
dc.identifier.urihttp://hdl.handle.net/1828/8345
dc.language.isoenen_US
dc.publisherSustainable Energy & Fuelsen_US
dc.titleLarge scale energy storage using multistage osmotic processes: Approaching high efficiency and energy densityen_US
dc.typePost-Printen_US

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Bharadwaj_Devesh_Sustainable_Energy_Fuels_2017.pdf
Size:
8.71 MB
Format:
Adobe Portable Document Format
Description:
main article
Download
Thumbnail Image
Name:
Bharadwaj_Devesh_Sustainable_Energy_Fuels_2017_Supplementary_Material.pdf
Size:
1.33 MB
Format:
Adobe Portable Document Format
Description:
supplementary material, publsihed online
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.74 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Faculty Publications (Engineering and Computer Science)
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.