Back to Search
Start Over
WHTO: A methodology of calculating the energy extraction of wave energy convertors based on wave height reduction
- Source :
- Energy. 185:299-315
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Wave energy has significant worldwide exploitable resource and its exploitation has attracted renewable energy investigator’ attention. Great progress on calculating device performance has been made by means of theoretical, numerical and model tests. This paper presents a method of calculating the energy extraction of a wave energy converter (WEC) based on Wave Height Take-off (WHTO). The method provides a means to improve the capture efficiency of designs, including demonstrating how well different kinds of WEC are optimized for certain wave conditions. Numerical simulations of a heaving buoy and a bottom-hinged pendulum in a 2D wave flume with different damping types (linear and nonlinear) are presented. The results show that the difference between the calculated energy extraction from the wave height reduction and from the model power take-off (PTO) was not significant in a 2D flume. Physical model tests were conducted using a simplified PTO consisting of a system of lifting weights, used to measure the energy extraction directly. Based on both numerical and physical model analyses, the article defines WHTO, which is equivalent to energy extracted by PTO, but determined without taking direct measurements. This paper aims to promote and validate the concept of the WHTO.
- Subjects :
- Computer simulation
business.industry
020209 energy
Mechanical Engineering
Pendulum
02 engineering and technology
Building and Construction
Pollution
Industrial and Manufacturing Engineering
Renewable energy
Power (physics)
Nonlinear system
General Energy
020401 chemical engineering
Wave flume
Wave height
0202 electrical engineering, electronic engineering, information engineering
0204 chemical engineering
Electrical and Electronic Engineering
business
Energy (signal processing)
Civil and Structural Engineering
Mathematics
Marine engineering
Subjects
Details
- ISSN :
- 03605442
- Volume :
- 185
- Database :
- OpenAIRE
- Journal :
- Energy
- Accession number :
- edsair.doi...........e51e18935c6d3a5e4a29e284c1a82e42