scholarly journals Erratum: “Frequency Response Analysis of an Ocean Wave Energy Converter” (Journal of Dynamic Systems, Measurement, and Control, 1983, 105, pp. 30–38)

1983 ◽  
Vol 105 (4) ◽  
pp. 286-286
Author(s):  
M. Masubuchi ◽  
R. Kawatani
Keyword(s):  
Frequency Response ◽  
Dynamic Systems ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Energy Converter ◽  
Ocean Wave Energy ◽  
And Control ◽  
Measurement And Control

Frequency Response Analysis of an Ocean Wave Energy Converter

1983 ◽  
Vol 105 (1) ◽  
pp. 30-38 ◽  
Author(s):  
M. Masubuchi ◽  
R. Kawatani
Keyword(s):  
Wave Energy ◽  
Wave Train ◽  
Mechanical Energy ◽  
Energy Conversion Efficiency ◽  
Wave Energy Converter ◽  
Response Analysis ◽  
Floating Bodies ◽  
Energy Converter ◽  
Ocean Wave Energy ◽  
Basic Equations

A theoretical analysis is presented for the dynamic behavior and energy conversion efficiency of a wave energy converter which is oscillating and absorbing power in an incident sinusoidal wave train. The energy converter consists of two floating bodies which have different configuration and are connected by a rigid link. Basic equations governing the floating bodies contained in the energy converter are obtained by assuming two dimensional motions and by considering the interactions between the two bodies and hydrodynamic and damping forces, and they have been solved numerically by using Lewis form as the configuration of the floating bodies. Energy absorption is assumed to be proportional to the square of the relative velocity between the oscillating body and the connecting link. It is shown that nearly 100 percent of wave energy is converted into mechanical energy in a wide frequency band.

A Study on Development of the Performance Analysis Method of the Floating OWC-WEC Using the MPS Method

2015 ◽  
Author(s):  
Yutaro Sasahara ◽  
Mitsuhiro Masuda ◽  
Kiyokazu Minami
Keyword(s):  
Wave Energy ◽  
Two Phase Flow ◽  
Wave Energy Converter ◽  
Response Analysis ◽  
Phase Flow ◽  
Energy Converter ◽  
Wave Impact ◽  
Two Phase ◽  
Mps Method ◽  
Type Wave

When concrete examination towards utilization is needed, it is necessary to estimate the safety and the performance of a floating Oscillation Water Column (OWC)-type wave energy converter under abnormal oceanographic phenomenon such as large waves, wave impact force, deck wetness and complex motion of mooring system. Therefore, to choose a proper numerical method is important. This present paper describes a fundamental study about estimation of safety and performance of floating OWC-type wave energy converter using the two-phase flow MPS method. In this research, firstly, new algorithm is installed in order to solve problems of the two-phase flow MPS method. Secondly, applicability to an response analysis of a wharf installation type OWC-WEC of the improved MPS method is examined by wave pressure acting to the OWC-WEC and response in the air chamber of the OWC-WEC.

scholarly journals Design and simulation of point absorber wave energy converter

2021 ◽  
Vol 321 ◽  
pp. 03003
Author(s):  
Devesh Singh ◽  
Anoop Singh ◽  
Akshoy Ranjan Paul ◽  
Abdus Samad
Keyword(s):  
Energy Harvesting ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Response Analysis ◽  
Ocean Energy ◽  
Energy Converter ◽  
Point Absorber ◽  
Time Response Analysis ◽  
Floating System ◽  
Energy Harvesting System

The paper aims to design and simulation of a wave energy harvesting system commonly known as point absorber for Ennore port located in the coastal area of Chennai, India. The geographical condition of India, which is surrounded by the three sides with seas and ocean, has enormous opportunity for power production through wave energy harvesting system. The wave energy converter device is a two-body floating system and its both parts are connected by power take-off unit which acts as spring mass damper system. In this paper, the hydrodynamic diffraction, stability analysis, frequency, and time response analysis is carried out on ansys-aqwa. The numerical results are compared with the results obtained from the similar experiments for validation of CFD solver. Effects of the properties featuring wave characteristics including wave height and wave period of Ennore port on the energy conversion, Froude-Krylov and diffraction force, response amplitude operator (RAO) are studied. Based on the study, float diameter, draft, geometry, and varying damping coefficient for power generation are optimized. Finally, the optimally designed point absorber is simulated as per Indian ocean energy harvesting standard and mass of the system, heave dimension, diffraction forces, and pressure variations are computed.

DESIGN AND CONTROL OF A 50KW CLASS ROTATING BODY TYPE WAVE ENERGY CONVERTER

2011 ◽  
pp. 1216-1223
Author(s):  
BYUNG-HAK CHO ◽  
SHIN-YEOL PARK ◽  
DONG-SOON YANG ◽  
KYUNG-SHIK CHOI ◽  
BYUNG-CHUL PARK
Keyword(s):  
Wave Energy ◽  
Wave Energy Converter ◽  
Body Type ◽  
Energy Converter ◽  
Type Wave ◽  
Rotating Body ◽  
And Control

scholarly journals Validation of a CFD-based numerical wave tank model for the power production assessment of the wavestar ocean wave energy converter

2020 ◽  
Vol 146 ◽  
pp. 2499-2516 ◽  
Author(s):  
Christian Windt ◽  
Josh Davidson ◽  
Edward J. Ransley ◽  
Deborah Greaves ◽  
Morten Jakobsen ◽  
...  
Keyword(s):  
Wave Energy ◽  
Power Production ◽  
Wave Energy Converter ◽  
Ocean Wave ◽  
Numerical Wave Tank ◽  
Energy Converter ◽  
Tank Model ◽  
Wave Tank ◽  
Ocean Wave Energy ◽  
Numerical Wave
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