The deployment of the first tidal energy capture system in Taiwan

Chen, Bang-Fuh; Chen, Lung-Chern; Huang, Chia-chen; Jiang, Zixiao; Liu, Jin‐Yuan; Lu, Shian-yun; Leu, Syue-Sinn; Tien, Wen-ming; Tsai, Der-ming; Wu, Shinna

doi:10.1016/j.oceaneng.2018.02.052

Cited by 15 publications

(10 citation statements)

References 9 publications

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“…The team from NSYSU designed a floating nozzle-diffusor duct (NDD) power generation system (Figure 3a) and deployed it successfully in the sea area near the Penghu cross-sea bridge in 2013 (Figure 3b). The in-situ test for the power take-off (PTO) of the system reached as high as 5 kW [6]. A successive new design with a circular nozzle-diffusor duct is expected to increase the PTO three times more than the previous model [7].…”

Section: Development For Ocean Current Energy Harvestermentioning

confidence: 99%

A Simple Nozzle-Diffuser Duct Used as a Kuroshio Energy Harvester

et al. 2021

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In response to the increasing energy demand in Taiwan and the global trend of renewable energy development, Kuroshio energy is a potential energy source. How to extract this invaluable natural resource has then become an intriguing and important question in engineering practices. This study reported the results of a feasibility study for a nozzle-diffuser duct (NDD) as the Kuroshio currents energy harvester. The computational fluid dynamics (CFD) software ANSYS Fluent was employed to calculate the drag and added mass coefficients of the duct anchored to the seabed. Those coefficients were further imported into Orcaflex to simulate the motion of the duct under normal and storm wave conditions. Results showed that the duct was stable 25 m below the sea surface under normal wave conditions. When the wave condition changed to storm waves, the duct needed to dive into at least 90 m below the sea surface to regain its stability and obtain high power take-off (PTO). An optimal design nozzle-diffuser-duct was reported, and a PTO peak of 15 kW was expectable in the Kuroshio currents. Once a suitable offshore platform can be developed with sixty-six NDDs, a Megawatt Kuroshio ocean current power generation system is feasible in the near future.

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Section: Development For Ocean Current Energy Harvestermentioning

confidence: 99%

A Simple Nozzle-Diffuser Duct Used as a Kuroshio Energy Harvester

et al. 2021

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“…The team from NSYSU designed a floating nozzle-diffusor duct (NDD) power generation system (Figure 3a) and deployed successfully in the sea area near the Penghu cross sea bridge in 2013 (Figure 3b). The in-situ test for the power take-off (PTO) of the system reached as high as 5 kW (Chen et al 2018). A successive new design with circular nozzle-diffusor duct is then expected to increase the PTO three times more than the previous model (Chen and Huang, 2016).…”

Section: Development For Ocean Current Energy Harvestermentioning

confidence: 99%

“…Figure 3 Prototypes of NSYSU designed (a) floating nozzle-diffusor duct (NDD) power generation system and (b) deployed successfully in the sea area near the Penghu cross sea bridge in 2013 (Chen et al, 2018).…”

Section: Development For Ocean Current Energy Harvestermentioning

confidence: 99%

“…In 2018, a commercial scale (500 kW) Deep Green was commissioned at the site off the coast of North Wales. Brief literature review for the development of ocean current energy harvester can be found in (Chen et al, 2018). (Minesto, 2017).…”

Section: Development For Ocean Current Energy Harvestermentioning

confidence: 99%

“…In 2013, a research team composed of three universities in Taiwan, NSYSU (National Sun Yat-sen University), KYU (Kao Yuan University), and NKMU (National Kaohsiung Marine University) deployed a semi-submerged platform carrying a square nozzle-diffuser duct (Chen et al 2018). The peak power take-off (PTO) received from this field test was up to 5 kW.…”

Section: Megawatt Kuroshio Energy Harvesting Systemmentioning

confidence: 99%

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A Simple Nozzle-Diffuser Duct Used as a Kuroshio Energy Harvester

Yeh¹,

Tsai²,

Chen³

et al. 2021

Preprint

Self Cite

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In response to the increasing energy demand in Taiwan and the global trend of renewable energy development, Kuroshio energy is a potential energy source. How to extract this invaluable natural resource has then become an intriguing and important question in engineering practices. This study conducted a study for a nozzle-diffuser duct (NDD) as the Kuroshio currents energy harvester. The computational fluid dynamics (CFD) software ANSYS Fluent was employed to calculate the drag and added mass coefficients of the duct anchored to the seabed. Those coefficients were further imported into Orcaflex to simulate the motion of the duct under normal and storm wave conditions. Results showed that the duct was stable 25 m below the sea surface under normal wave condition. When the wave condition changed to storm waves, the duct needed to dive into at least 90 m below the sea surface to regain its stability and obtain high power take-off (PTO). An optimal design nozzle-diffuser-duct was reported and a PTO peak of 15 kW was expectable in the Kuroshio currents. Once a suitable offshore platform can be developed with sixty-six NDDs, a Megawatt Kuroshio ocean current power generation system is feasible in the near future.

show abstract