Brazilian Ocean Thermal Energy Park and its Sites: Definitions and Feasibility of Thermal Energy Conversion in the Blue Amazon

Souza, Roberto Valente de; Fernandes, Elisa Leão L; Azevedo, José Luiz Lima de; Martins, Rafaella Corrêa; Passos, Mariana dos Santos

doi:10.2139/ssrn.3947580

Cited by 1 publication

(1 citation statement)

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“…Additionally, OTEC technology can provide abundant cold water for air conditioning and refrigeration as well as desalinated fresh water for various applications [2]. The significance of OTEC lies in its potential to serve as a renewable base-load energy source for tropical islands, thereby reducing their reliance on imported fossil fuels, particularly oil [3].…”

Section: Introductionmentioning

confidence: 99%

Vibrational Responses of an Ultra-Large Cold-Water Pipe for Ocean Thermal Energy Conversion: A Numerical Approach

Tan,

Zhang,

Zhang

et al. 2023

JMSE

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The transportation of seawater on a grand scale via an ultra-large cold-water pipe situated within the context of ocean thermal energy conversion (OTEC) floating installations inherently presents challenges associated with instability and potential malfunction in the face of demanding operational circumstances. This study endeavors to augment the stability and security of cold-water pipe (CWP) operations by scrutinizing their vibrational attributes across diverse boundary configurations. Initially, we invoke Euler–Bernoulli beam theory to forge the analytical framework and proffer a semi-analytical resolution by utilizing the generalized integral transform technique (GITT). Subsequently, we authenticate the convergence and precision of our proposed approach through comparative analysis with extant theories. Our findings underscore the conspicuous influence of boundary conditions on the convergence of transverse displacement. The influence of internal flow on the transverse displacement and the natural frequency manifests substantial variability under different boundary conditions. Significantly, an escalation in the internal flow velocity triggers a concomitant reduction in the natural frequency, ultimately culminating in instability once the critical velocity threshold is reached. Additionally, the reliance of the transverse displacement and the natural frequency on the clump weight at the bottom is markedly pronounced. Our discoveries propose that pipe stability can be ameliorated by adjusting the clump weight at the bottom. Furthermore, the novel insights obtained through our proposed approach can significantly aid in the early-stage design and analysis of CWP.

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Section: Introductionmentioning

confidence: 99%