Microfluidic Thermo-Optic Panel for Thermal-to-Electric Conversion
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Solution Overview
Problem
Current microfluidic devices are inadequate in efficiently converting and conditioning thermal energy into usable energy while also adjusting optical wavelength passband effectively.
Innovation Solution
A microfluidic panel comprising a substrate with channels filled with thermal energy-storing fluid, equipped with a thermoelectric generator and a MEMS pump, and made of glass with specific optical properties, capable of converting thermal energy into electrical energy and conditioning optical radiation by using nano-particles and structured channels for efficient energy capture and diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional microfluidic devices are used, then device simplicity is maintained, but thermal energy conversion efficiency is insufficient
Solution Approach 1:
The patent combines multiple functions into a single integrated microfluidic device: thermal energy capture through fluid heating, thermoelectric energy conversion, and optical wavelength conditioning through nano-particles. This merging of functions increases power efficiency while managing device complexity through unified design.
Solution Approach 2:
The microfluidic device performs multiple functions simultaneously: it captures thermal energy from radiation, converts it to electrical energy via thermoelectric generators, and conditions optical wavelengths using nano-particles in the fluid. This multi-functionality addresses the need for higher power efficiency without requiring separate devices for each function.
2Adaptability or versatility
If standard fluids are used in channels, then manufacturing simplicity is maintained, but optical wavelength conditioning capability is insufficient
Solution Approach 1:
The patent changes the optical parameters of the fluid by incorporating nano-particles with specific properties that enable wavelength-selective absorption and emission. This allows the device to condition optical radiation and adjust the spectral passband, providing adaptability for different optical applications.
Solution Approach 2:
The device uses composite materials including nano-particles suspended in fluid within the microchannels. These composite materials provide both the optical conditioning capability (wavelength selectivity) and thermal energy storage, enabling versatile optical functionality while maintaining manufacturability through established composite material fabrication techniques.
3Power
If simple channel designs are used, then manufacturing ease is maintained, but energy capture efficiency is insufficient
Solution Approach 1:
The patent segments the microchannel into sections with different characteristics, including serpentine paths that increase surface area for heat exchange and regions with varying nano-particle concentrations for optimized energy capture. This segmentation improves energy capture efficiency while keeping the overall device structure manageable.
Solution Approach 2:
The patent employs serpentine (curved) channel paths instead of straight channels, increasing the heat exchange surface area and improving thermal energy capture efficiency. The curved geometry also enhances fluid mixing and heat transfer, thereby improving power efficiency without significantly complicating the manufacturing process.
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 microfluidic panel effectively converts thermal energy into usable electrical energy and conditions optical radiation, enhancing energy efficiency and aesthetic appeal through optimized channel design and fluid properties, suitable for applications in clean energy generation and smart window technology.
Implementation Method 1
the fluid is selected to store thermal energy
Implementation Method 2
the microfluidic panel is adapted to convert the thermal energy into useable energy
Implementation Method 3
using nano-particles and structured channels for efficient energy capture and diffusion
Implementation Method 4
the microfluidic panel is adapted to condition the energy to adjust optical wavelength passband of the panel
Data Source
AI summary
A microfluidic panel including at least one substrate, one or more channels formed in the substrate, and fluid disposed within the one or more channels. The fluid is selected to store thermal energy and the microfluidic panel is adapted to convert the thermal energy into useable energy or condition the energy to adjust optical wavelength passband of the panel.