Model of a thermal driven volumetric pump for energy harvesting in an underwater glider

J. Falcão Carneiro and F. Gomes de Almeida

Energy, 2016, vol. 112, issue C, 28-42

Abstract: Underwater gliders are one of the most promising approaches to achieve an increase of human presence in the oceans. Among existing solutions, thermal driven gliders present long range and endurance capabilities, offering the possibility of remaining years beneath water collecting and transmitting data to shore. A key component in thermal gliders lies in the process used to collect ocean's thermal energy. In this paper a new quasi-static model of a thermal driven volumetric pump, for use in underwater gliders, is presented. The study also encompasses an analysis of the influence different hydraulic system parameters have on the thermodynamic cycle efficiency. Finally, the paper proposes a simple dynamic model of a heat exchanger that uses commercially available materials for the Phase Change Material (PCM) container. Simulation results validate the models developed.

Keywords: Underwater gliders; Renewable energy; Energy efficiency; Thermodynamic cycle; Hydraulic systems; Phase change materials (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:112:y:2016:i:c:p:28-42

DOI: 10.1016/j.energy.2016.06.008

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