Buoyancy organic Rankine cycle

J. Schoenmaker, J.F.Q. Rey and K.R. Pirota

Renewable Energy, 2011, vol. 36, issue 3, 999-1002

Abstract: 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.

Keywords: Renewable energy; Organic Rankine cycle; Buoyancy force; Combined cycle (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:36:y:2011:i:3:p:999-1002

DOI: 10.1016/j.renene.2010.09.014

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