| 词条 | Ocean Grazer |
| 释义 |
The Ocean Grazer is a conceptual energy collection platform, projected to house several renewable energy generation modules, including wave energy, solar energy and wind energy. The development of the Ocean Grazer platform has been carried out by the University of Groningen in the Netherlands.[1] The concept of the platform is currently on its version 3.0[2] centering on the modular design as opposed to the massiveness of the platform, as in the previous concepts. The majority of the harvested energy for all concepts is to be delivered by a wave energy converter that uses the motion of ocean surface waves to generate electrical energy[3] Wave energy converter operationThe operating principle of the Ocean Grazer wave energy converter is to store potential energy by creating a hydraulic head, due to the differences in pressure between two reservoirs. All three concepts rely on this principle to function. The hydraulic head is created by circulating internal fluid from the lower to the upper reservoir via a novel hydro-mechanical power take off system,[3] composed of distributed and coupled floaters. Each floater is linked to a separate multi-piston pumping system, consisting of differently sized pistons that regulate the amount of pumped fluid and that can be adapted to the surface wave conditions.[4] Check valve systems are needed to minimize the back flow when the pistons return to their resting position.[3][5] Lastly, similar to a hydroelectric plant, once enough fluid has been stored in the upper reservoir it can be circulated through a turbine system to generate electrical energy. PotentialThere are advantages in using a device like the Ocean Grazer wave energy converter, such as:
ChallengesThere are also disadvantages in using a device like the Ocean Grazer wave energy converter, namely:
See also
References1. ^{{Cite web|url=https://www.rug.nl/research/ape/ocean-grazer-project|title=Ocean Grazer project {{!}} Advanced Production Engineering {{!}} Research {{!}} University of Groningen|website=www.rug.nl|language=en|access-date=2018-03-30}} 2. ^1 {{Cite web|url=http://www.oceangrazer.com/|title=Ocean Grazer 3.0 - Offshore renewable energy: Wind, Wave, and Storage|website=Ocean Grazer 3.0|language=en-US|access-date=2018-03-30}} 3. ^1 2 {{Cite journal|date=2016-10-01|title=Mechanical design and modeling of a single-piston pump for the novel power take-off system of a wave energy converter|url=https://www.sciencedirect.com/science/article/pii/S0960148116303780|journal=Renewable Energy|language=en|volume=96|pages=531–547|doi=10.1016/j.renene.2016.04.076|issn=0960-1481|last1=Vakis|first1=Antonis I.|last2=Anagnostopoulos|first2=John S.}} 4. ^1 {{Cite journal|date=2017-10-01|title=Investigating the adaptability of the multi-pump multi-piston power take-off system for a novel wave energy converter|url=https://www.sciencedirect.com/science/article/pii/S096014811730349X|journal=Renewable Energy|language=en|volume=111|pages=598–610|doi=10.1016/j.renene.2017.04.042|issn=0960-1481|last1=Wei|first1=Y.|last2=Barradas-Berglind|first2=J.J.|last3=Van Rooij|first3=M.|last4=Prins|first4=W.A.|last5=Jayawardhana|first5=B.|last6=Vakis|first6=A.I.}} 5. ^{{Cite journal|date=2017-07-01|title=Towards Ocean Grazer's Modular Power Take-Off System Modeling:a Port-Hamiltonian Approach|url=https://www.sciencedirect.com/science/article/pii/S2405896317332160|journal=IFAC-PapersOnLine|language=en|volume=50|issue=1|pages=15663–15669|doi=10.1016/j.ifacol.2017.08.2397|issn=2405-8963|last1=Barradas-Berglind|first1=J.J.|last2=Muñoz-Arias|first2=M.|last3=Wei|first3=Y.|last4=Prins|first4=W.A.|last5=Vakis|first5=A.I.|last6=Jayawardhana|first6=B.}} 6. ^1 {{Cite book|url=https://books.google.com/?id=qBINDgAAQBAJ&pg=PA207&dq=info:jVutRXPdc5EJ:scholar.google.com#v=onepage&q&f=false|title=Progress in Renewable Energies Offshore: Proceedings of the 2nd International Conference on Renewable Energies Offshore (RENEW2016), Lisbon, Portugal, 24-26 October 2016|last=Soares|first=C. Guedes|date=2016-11-18|publisher=CRC Press|isbn=9781351858540|language=en}} 7. ^{{Cite book|title=Ocean wave energy : current status and future prepectives [i.e. perspectives]|date=2008|publisher=Springer|others=Cruz, João.|isbn=9783540748946|location=Berlin|oclc=233973506}} 3 : Wave energy converters|Renewable energy in the Netherlands|University of Groningen |
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