Adaptive Hydrokinetic Vane for Flow-Condition Energy Harvesting
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Solution Overview
Problem
Current hydrokinetic energy harvesting systems lack adaptability to changing hydrodynamic conditions, limiting their ability to maximize energy harvesting efficiency.
Innovation Solution
A system featuring vanes with hydrofoil cross-sections that oscillate within a flow-way, connected to an energy conversion module, which includes a control module to adjust resistance and optimize energy conversion based on fluid flow characteristics, allowing for adaptive energy harvesting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed hydrokinetic energy harvesting system is used, then the system structure is simple, but the energy harvesting efficiency cannot be maximized under changing flow conditions
Solution Approach 1:
The patent implements dynamic adaptability by enabling the hydrokinetic energy harvesting system to automatically adjust its operational parameters in response to changing flow conditions. The control system modifies resistance and conversion parameters in real-time, transforming a static system into a dynamic one that optimizes energy harvesting efficiency across varying hydrodynamic environments.
Solution Approach 2:
The system changes operational parameters (resistance, conversion settings) based on detected flow conditions. The control module monitors flow characteristics and adjusts system parameters accordingly, allowing the same physical system to operate optimally across a range of different flow rates and conditions without requiring multiple fixed configurations.
2Productivity
If the system is made adaptive to changing flow conditions, then energy harvesting efficiency is maximized, but the system complexity increases
Solution Approach 1:
The patent incorporates a control module that continuously monitors flow conditions and provides feedback to adjust system parameters. This feedback mechanism enables the system to sense changes in the environment and automatically respond by modifying resistance and conversion settings, achieving adaptability through a closed-loop control system rather than complex mechanical reconfigurations.
3Productivity
If the resistance of the vane is modified to optimize energy conversion, then the energy harvesting efficiency improves, but the device complexity increases
Solution Approach 1:
The system modifies the resistance parameter of the vane through electronic or mechanical adjustment mechanisms controlled by the system's control module. This allows optimization of energy conversion efficiency by tuning the resistance to match prevailing flow conditions, achieving parameter optimization without requiring complete structural redesign of the vane assembly.
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 adapts to varying fluid flow conditions, enhancing energy harvesting efficiency and scalability, suitable for diverse fluid environments, including water, fuel, and air.
Implementation Method 1
at least one vane having a hydrofoil cross-section with a leading edge for facing into the direction of flow of a flowing fluid and a trailing edge opposite the leading edge. The vane is positioned within the flow-way and mounted to said supporting structure so that it oscillates as the fluid flows across it from the leading edge to the trailing edge, thereby generating torque.
Implementation Method 2
The vane is positioned within the flow-way and mounted to said supporting structure so that it oscillates as the fluid flows across it from the leading edge to the trailing edge, thereby generating torque.
Implementation Method 3
The energy conversion module includes an electrical power generator connected to the vane such that the oscillating vane drives the generator.
Data Source
AI summary
An adaptive system for harvesting hydrokinetic energy from flowing fluid uses a hydrofoil-type vane in a flow-way and an electrical power generator to convert torque generated by the oscillating vane to electrical current. The generator may be electromagnetic or piezoelectric. The system includes a control module that measures the oscillation of the vane, the generated torque, or the characteristics of the generated current, and modifies the resistance of the vane or the conversion of the electrical current in response to changes therein. Some systems include a frame that can be anchored in a body of water. Some systems are portable and provide illumination. Some systems are adapted for use as hiking or camping gear and may be inserted into stream beds or used as walking sticks. Some systems are in-line devices. Some systems are adapted as fishing lures.