Buoyancy organic Rankine cycle
In the scope of renewable energy, we draw attention to a little known technique to harness solar and geothermal energy. The design here proposed and analyzed is a conceptual hybrid of several patents. By means of a modified organic Rankine cycle, energy is obtained utilizing buoyancy force of a working fluid. Based on thermodynamic properties we propose and compare the performance of Pentane and Dichloromethane as working fluids. Theoretical efficiencies up to 0.26 are estimated for a 51m (Pentane) and 71.5m (Dichloromethane) high column of water in a regime below 100°C operation temperature. These findings are especially relevant in the scope of distributed energy systems, combined cycle plants, and low-temperature Rankine cycles.
Year of publication: |
2011
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Authors: | Schoenmaker, J. ; Rey, J.F.Q. ; Pirota, K.R. |
Published in: |
Renewable Energy. - Elsevier, ISSN 0960-1481. - Vol. 36.2011, 3, p. 999-1002
|
Publisher: |
Elsevier |
Subject: | Renewable energy | Organic Rankine cycle | Buoyancy force | Combined cycle |
Saved in:
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