Buoyancy Energy Conversion System for Floating Structures
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Solution Overview
Problem
Floating structures face challenges in powering rotating devices due to the limitations of fossil fuel engines and electrical battery systems, which are expensive and pose hazards in wet environments.
Innovation Solution
A buoyancy energy conversion system utilizing a pair of reciprocating buoyancy tanks connected to a drive cable, alternately filled and emptied with compressed gas to rotate a drive assembly, converting buoyant forces into rotational energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If fossil fuel engines are used to power rotating devices on floating structures, then mechanical power is provided, but operating cost and maintenance cost increase
Solution Approach 1:
The system uses the natural buoyancy of water and the weight of the floating structure itself to generate power. The float rises and falls with waves, automatically driving the cable and pulley mechanism without requiring external fuel or energy input, making the system self-sufficient
Solution Approach 2:
The patent replaces the fossil fuel engine's mechanical power generation system with a wave energy conversion system that uses buoyant force and gravitational potential energy to drive the same mechanical loads through a cable and pulley mechanism
2Power
If fossil fuel engines are used to power rotating devices on floating structures, then mechanical power is provided, but maintenance cost increases
Solution Approach 1:
The system eliminates complex engine components by using a passive buoyancy-based mechanism that has fewer moving parts requiring maintenance. The simple cable, pulley, and ratchet system requires minimal intervention and is easier to repair than fossil fuel engines in remote marine locations
Solution Approach 2:
The patent extracts the power generation function from complex engine systems and implements it through a simplified mechanical system using only buoyancy, gravity, and basic mechanical components, removing the need for fuel systems, exhaust systems, and complex combustion mechanisms
3Power
If electrical battery systems are used to power rotating devices, then power is provided, but safety hazards increase in wet environments
Solution Approach 1:
The patent replaces electrical battery systems with a direct mechanical power generation system that converts wave energy into mechanical motion through buoyant force and cable tension, eliminating electrical components and associated safety hazards in wet marine environments
Solution Approach 2:
The mechanical system generates power directly from wave motion without requiring energy storage batteries, eliminating the safety risks of batteries in wet and salty marine environments while providing continuous power during wave activity
4Power
If electrical battery systems are used to power rotating devices, then power is provided, but system cost increases
Solution Approach 1:
The patent extracts the power generation capability from expensive battery systems and implements it through a simple mechanical wave energy converter using basic components like floats, cables, pulleys, and ratchets, significantly reducing system cost
Solution Approach 2:
The system uses simple, inexpensive mechanical components that can be easily replaced if needed, rather than expensive battery systems with complex electronics and management systems, reducing overall system cost
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
Provides a clean and efficient means to rotate drive shafts on floating structures, reducing reliance on fossil fuels and electrical hazards, while leveraging available buoyant forces for energy conversion.
Implementation Method 1
converting the energy of buoyant objects submerged in a liquid to rotational energy
Implementation Method 2
A source and system of compressed gas and valves may force compressed gas and water into and out of the pair of buoyancy tanks
Data Source
AI summary
A buoyancy energy conversion system and method for converting buoyant forces to rotational energy may comprise a pair of reciprocating buoyancy tanks connected to a common drive cable. The pair of buoyancy tanks may be alternatively filled and emptied of compressed gas to alternately raise and lower the pair of buoyancy tanks within a water column. The ends of the drive cable are connected to opposed sides of a drive assembly such that the rising and lowering of the pair of buoyancy tanks within the water column rotates the drive assembly. The buoyancy energy conversion system may include an upper frame assembly mounted to a floating structure and supporting the drive assembly and a weighted lower frame assembly supporting said drive cable. A source and system of compressed gas and valves may force compressed gas and water into and out of the pair of buoyancy tanks.