Linear Faraday Induction Generator for Ocean Wave Energy Conversion

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Solution Overview

Problem

Existing ocean wave energy dissipation technologies are inefficient in capturing a significant portion of wave energy, leading to wastage and damage to coastal structures, as they either reflect waves, causing standing waves, or absorb all energy, resulting in increased damage and shortened lifespan due to frictional losses.

Innovation Solution

The Electrokinetic Seawall system employs a network of wave energy converters with permanent magnet arrays and field coil arrays to convert kinetic energy from ocean waves into electrical energy using Faraday induction, allowing for efficient energy capture and dissipation while minimizing damage to coastal structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If conventional seawalls dissipate wave energy through frictional losses, then wave energy is converted to heat, but tremendous amounts of energy is wasted and lost

Engineering Contradiction:
Improvewave energyVSAvoidenergy conversion efficiency
Core Design Contradiction:
Loss of energyVSProductivity

Solution Approach 1:

The patent replaces the conventional mechanical friction-based energy dissipation system with an electromagnetic induction system. Linear Faraday induction generators convert wave kinetic energy directly into electrical energy through electromagnetic fields, eliminating the need for mechanical friction and turbulence-based dissipation. This substitution transforms wasted thermal energy into usable electrical power, directly addressing the energy loss problem.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent converts the harmful wave kinetic energy that causes coastal erosion and structural damage into beneficial electrical energy. By positioning linear Faraday induction generators along the seawall, the system captures the energy of incoming waves and transforms it into usable electricity, turning a destructive force into a productive resource.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Object-affected harmful factors

If type 1 seawalls reflect waves, then standing waves are produced, but extremely violent and undesirable standing waves are created in front of the seawall

Engineering Contradiction:
Improvewave reflectionVSAvoidstanding waves
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the passive mechanical wave reflection mechanism with an active electromagnetic energy conversion system. Instead of allowing waves to reflect off a rigid seawall surface, the linear Faraday induction generators actively capture wave energy and convert it to electricity, preventing reflection and the formation of standing waves.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Object-affected harmful factors

If type 2 seawalls absorb all wave energy, then standing waves are avoided, but increased cumulative damage and shortened lifespan occur due to frictional losses

Engineering Contradiction:
Improvestanding wavesVSAvoidseawall lifespan
Core Design Contradiction:
Object-affected harmful factorsVSDuration of action of stationary object

Solution Approach 1:

The patent replaces the mechanical friction-based absorption mechanism with electromagnetic induction. The linear Faraday induction generators capture wave energy before it can cause cumulative frictional damage to the seawall structure, converting the energy into electricity rather than allowing it to degrade the structure through repeated mechanical stress.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system makes the seawall self-sustaining by generating electrical energy from the wave energy it encounters. The generated electricity can power monitoring systems, lighting, or be fed into the grid, creating a self-funding mechanism that extends the seawall's operational life without requiring additional structural reinforcement.

Inventive Principle:
Principle #25Self-service

4Productivity

If only about 0.5 TW of wave energy could be captured with existing technology, then energy capture is limited, but a significant percentage of the planet's power consumption remains untapped

Engineering Contradiction:
Improveenergy capture capacityVSAvoiduntapped wave energy
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent replaces conventional mechanical wave energy conversion systems with linear Faraday induction generators that offer superior efficiency. These generators directly convert wave kinetic energy to electrical energy through electromagnetic induction, eliminating mechanical transmission losses and enabling much higher capture capacities, potentially reaching the 1-10 TW range mentioned in the background.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively captures and converts ocean wave kinetic energy into electrical energy, reducing damage to coastlines and structures by attenuating wave energy, thereby enhancing energy efficiency and extending the lifespan of seawalls.

Implementation Method 1

The Electrokinetic Seawall system employs a network of wave energy converters with permanent magnet arrays and field coil arrays to convert kinetic energy from ocean waves into electrical energy using Faraday induction

Methodology Applied
Scientific EffectFaraday induction: Electromagnetic Induction

Data Source

PatentUS9624900B2Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
Publication Date: 2017.04.18 SLP CONSULTANTS INC
  • US9624900B2 patent drawing
  • US9624900B2 patent drawing
  • US9624900B2 patent drawing

AI summary

A buoy includes a flotation device configured to float at surface of a body of water. A vibrational linear electric generator (VLEG) is configured to generate power from vibrational oscillations caused by waves using compressed repulsive magnetic fields focused by end magnetic field deflecting magnets. A power collection circuit, which includes a first battery, is configured to collect and store energy generated by the VLEG. One or more electronic components are powered by the vibrational linear electric generator.