Mechanical wave-energy fluxin magnetoatmospheres: Discrete and continuous spectra

1981 ◽  
Vol 78 (2) ◽  
pp. 293-350 ◽  
Author(s):  
J. A. Adam
Keyword(s):  
Wave Energy ◽  
Mechanical Wave ◽  
Discrete And Continuous Spectra

scholarly journals Power Generation Using Mechanical Wave Energy Converter

2012 ◽  
Vol 3 (1) ◽  
pp. 57-70 ◽  
Author(s):  
Srinivasan Chandrasekaran ◽  
Harender
Keyword(s):  
Wave Energy ◽  
Conceptual Development ◽  
Wave Energy Converter ◽  
Experimental Investigations ◽  
Renewable Energy Resources ◽  
Energy Converter ◽  
Mechanical Wave ◽  
Component Level ◽  
Scaled Model ◽  
Effect Analysis

Ocean wave energy plays a significant role in meeting the growing demand of electric power. Economic, environmental, and technical advantages of wave energy set it apart from other renewable energy resources. Present study describes a newly proposed Mechanical Wave Energy Converter (MEWC) that is employed to harness heave motion of floating buoy to generate power. Focus is on the conceptual development of the device, illustrating details of component level analysis. Employed methodology has many advantages such as i) simple and easy fabrication; ii) easy to control the operations during rough weather; and iii) low failure rate during normal sea conditions. Experimental investigations carried out on the scaled model of MWEC show better performance and its capability to generate power at higher efficiency in regular wave fields. Design Failure Mode and Effect Analysis (FMEA) shows rare failure rates for all components except the floating buoy.

Research and Development of Multi Section Floating Mechanical Wave Energy Power Generation Device

2014 ◽  
Vol 494-495 ◽  
pp. 711-716
Author(s):  
Zi Fan Fang ◽  
Zhen Hao Ma ◽  
Jing Fang ◽  
Shu Gao ◽  
Kong De He
Keyword(s):  
Power Generation ◽  
Wave Energy ◽  
Voltage Regulator ◽  
Mechanical Wave ◽  
Energy Capture ◽  
Movement Characteristics ◽  
Speed Up ◽  
Gear Mechanism ◽  
Power Generation Device ◽  
Generator Output

In order to study the principle of wave power generation, a multi section floating mechanical wave energy power generation device and a rectifier voltage regulator circuit are designed. The device consists of multi cylinder buoys, direction changing and speed-up mechanism, generator, rectifier voltage regulator circuit and other components. According to the certain regulation of wave movement, the structure and parameters of the wave energy capture device are designed; based on the movement characteristics of wave energy capture device, the direction changing and speed-up mechanism is designed, including crank-rocker mechanism and gear mechanism. The rectifier voltage regulator circuit is designed by the law of generator output. The experiment research shows that the efficiency of wave energy power generation device is up to 45.8% under the condition of prescribed test wave.

Design and Efficiency Analysis of a Mechanical Wave Energy Converter

2011 ◽  
Author(s):  
Srinivasan Chandrasekaran ◽  
Harender
Keyword(s):  
Wave Energy ◽  
Energy Resource ◽  
Water Levels ◽  
Wave Energy Converter ◽  
Small Displacement ◽  
Energy Converter ◽  
Mechanical Wave ◽  
Wave Impact ◽  
Heave Motion ◽  
Gear Rack

Wave energy is the most promising natural energy resource that is gaining momentum in the recent years. Successful attempts are made by several researchers to harness wave energy by heave, surge and sway motion of the devices; however no successful commercial model is launched till date leaving this domain as a research potential. Among the proposed technologies, point absorbers are found to be commercially viable to a greater extent primarily due to its simplicity. The present study discusses a new mechanical wave energy converter (MWEC) using point absorber as a wave energy capturing device. Heave motion of a floating buoy due to incident wave field is harnessed to produce power. The conversion takes place in four different stages namely: i) motion of a gear rack, attached to floating buoy results in heave motion; ii) this vertical reciprocating motion is converted to oscillatory rotation of a shaft by a rack and pinion arrangement; iii) alternative rotary motion is converted in to continuous unidirectional rotation using a unidirectional chain assembly; and iv) unidirectional rotation is converted in to other usable energy form. MWEC employs numerous operating advantages over other systems such as: (i) the rack and pinion gear arrangement enabling the buoy to float in line to the changing water levels automatically. (ii) use of RPM multiplier enables rotation of generator shaft at high RPM even for small displacement of float; (iii) the free wheel sprockets of unidirectional chain assembly enable the gear rack to produce a positive upward stroke and a positive downward stroke for every passing wave impact. Further, rpm multiplier shall be easily adjusted to rotate the generator at desired rpm while the whole operation shall be shut down on emergency. The paper presents a detailed analysis of the mechanical system to arrive at the efficiency of the developed MWEC. Based on the studies conducted, it is seen that the overall efficiency of the MWEC is about 19% while maintaining maximum possible efficiency of the mechanical systems involved in the design.

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