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Type: Artigo de periódico
Title: Buoyancy Organic Rankine Cycle
Author: Schoenmaker J.
Rey J.F.Q.
Pirota K.R.
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 51 m (Pentane) and 71.5 m (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. © 2010 Elsevier Ltd.
Rights: fechado
Identifier DOI: 10.1016/j.renene.2010.09.014
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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