Pecher, Arthur

English

Havets bølger udgør en bæredygtig, magtfuld, forudsigelig og bredt tilgængelig energikilde, der kunne dække cirka 10 % af verdens energibehov. Selvom forskning inden for bølge energi, er blevet udført I årtier, er der inden for de senere år sket en signifikant stigning i udviklingen af aktiviteterne inden for området, hvor mere end 150 koncepter lige nu udvikles verden over. Bølgekraftværks koncepter kan være meget forskellige, da energien i bølgen, kan absorberes på mange måder, og konverteres i forskellige medier. Dog forventes hvert koncept at bestå af en grundig udviklingsproces, heraf med forskellige faser og prototyper.Retningslinjerne for udviklingen af bølgekraftværker, anbefaler en brug af flere prototyper i forskellige størrelser, hvilke skal testes i tanke og havet. Dette implicerer behovet for forskellige testmiljøer, da de igennem de forskellige udviklingsstadier skifter fra at være kunne styres til at være ukontrollabel, hvilket dermed resulterer i et behov for specifikke test-mål og procedurer for hver enkelt udviklingsfase.Denne Ph.d.-afhandling har undersøgt de forskellige udviklingsstadier, og mere specifikt i praksis ved en vurderingen af bølgekraftværkernes ydeevne, baseret på tests i tanke og havet. Formålet med afhandlingen var at forbedre eller supplere eksisterende standarder og retningslinjer for at gøre dem mere transparente, retfærdige og robuste, med henblik på at gøre vurderingen af de kommercielle fuldskala enheder mere præcise, og sammenlignelige de forskellige udviklingsstadier imellem, samt at gøre de forskellige koncepter mere sammenhængende.Ocean waves provide a sustainable, power-dense, predictable and widely available source of energy that could provide about 10 % of worlds energy needs. While research into wave energy has been undertaken for decades, a significant increase in related activities has been seen in the recent years, with more than 150 concepts currently being developed worldwide. Wave energy conversion concepts can be of many kinds, as the energy in the waves can be absorbed in many different ways. However, each concept is expected to require a thorough development process, involving different phases and prototypes.Guidelines for the development of wave energy converters recommend the use of different prototypes, having different sizes, which have to perform tank tests or sea trials. This implicates the need of different testing environment, which shifts from being controllable to uncontrollable with the development stages, and results thereby in a need for specific test objectives and procedures for each development stage.This PhD thesis has looked into the different development stages and more specifically in the performance assessment of wave energy converters based on tank testing and sea trials. The objective was to enhance or complement existing standards and guidelines by making them more transparent, equitable and robust, in order to make power production estimation of full-scale commercial devices more accurate, more comparable between the different development stages and more coherent in between different concepts

Performance Evaluation of Wave Energy Converters

Ocean waves provide a sustainable, power-dense, predictable and widely available source of energy that could provide about 10 % of worlds energy needs. While research into waveenergy has been undertaken for decades, a significant increase in related activities has been seen in the recent years, with more than 150 concepts currently being developed worldwide. Wave energy conversion concepts can be of many kinds, as the energy in the waves can be absorbed in many different ways. However, each concept is expected to require a thorough development process, involving different phases and prototypes.Guidelines for the development of wave energy converters recommend the use of different prototypes, having different sizes, which have to perform tank tests or sea trials. Thisimplicates the need of different testing environment, which shifts from being controllable to uncontrollable with the development stages, and results thereby in a need for specific testobjectives and procedures for each development stage.This PhD thesis has looked into the different development stages and more specifically in the performance assessment of wave energy converters based on tank testing and sea trials. The objective was to enhance or complement existing standards and guidelines by making them more transparent, equitable and robust, in order to make power production estimation of full-scale commercial devices more accurate, more comparable between the different development stages and more coherent in between different concepts

Arthur Pecher

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https://vbn.aau.dk/ws/files/316456861/Performance_Evaluation_of_Wave_Energy_Converters.pdf

Performance Evaluation of Wave Energy Converters

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