Self-Organizing Bi-Phase Fluid Circuit for Thermal Management
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Solution Overview
Problem
Current thermal management technologies face challenges in effectively managing increased thermal energy generation in high-performance microelectronic devices, leading to potential component failure due to excessive heat buildup, particularly in compact and computationally powerful systems.
Innovation Solution
A self-organizing thermodynamic system utilizing a bi-phase fluid circuit with interconnected thermal energy absorption and dissipation nodes, leveraging capillary action to efficiently transfer heat through a network of capillaries, which dynamically responds to local conditions such as temperature and pressure to optimize heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional thermal management technologies are used, then device compactness and computing power can be increased, but thermal energy management effectiveness deteriorates leading to excessive heat buildup
Solution Approach 1:
The patent employs phase change materials and bi-phase fluid circuits that utilize phase transitions (liquid-vapor cycles) to absorb and transport thermal energy. The working fluid undergoes phase changes between liquid and vapor states, absorbing latent heat at hot spots and releasing it at cooler regions, enabling effective thermal management in compact high-power devices
Solution Approach 2:
The invention uses bi-phase fluid circuits with capillary-driven flow to transport thermal energy. The hydraulic system utilizes surface tension and capillary forces to move the working fluid through microchannels, creating a passive thermal management system that efficiently transfers heat without mechanical pumps
2Volume of moving object
If device size is reduced for compact packaging, then portability is improved, but thermal energy dissipation effectiveness deteriorates
Solution Approach 1:
The patent transitions from two-dimensional heat spreading to three-dimensional thermal management by implementing vertical heat transport channels and multi-layer fluid circuits. This dimensional approach allows efficient heat removal from compact volumes by utilizing the third dimension for thermal energy transport
Solution Approach 2:
The invention incorporates porous wick structures and capillary networks that provide high surface area to volume ratios for heat transfer. These porous materials enable efficient capillary-driven fluid flow and heat exchange within minimal space, maintaining effective thermal dissipation in compact device volumes
3Device complexity
If passive capillary-driven fluid movement is used, then system complexity is reduced, but control precision over heat transfer may deteriorate
Solution Approach 1:
The patent optimizes capillary dimensions, surface tensions, and thermal conductivity parameters to achieve precise heat transfer control. By carefully selecting and tuning these physical parameters, the passive system achieves controlled fluid flow rates and heat transfer coefficients without complex active control mechanisms
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
This approach enables highly efficient and dynamic heat transfer from absorption zones to dissipation zones, minimizing gravitational effects and ensuring continuous operation by allowing mass and energy communication across nodes, thus preventing component failure and enhancing thermal management in microelectronic devices.
Implementation Method 1
A self-organizing thermodynamic system utilizes a bi-phase fluid circuit with interconnected thermal energy absorption and dissipation nodes, leveraging capillary action to efficiently transfer heat through a network of capillaries
Implementation Method 2
A self-organizing thermodynamic system utilizing a bi-phase fluid circuit with interconnected thermal energy absorption and dissipation nodes
Data Source
AI summary
Disclosed are thermal management for electronic devices and, more particularly, to a thermodynamic system with bi-phase fluid circuits which self-organize internal fluid movement to transfer heat from heat absorption zones to heat dissipation zones. A thermodynamic system may include a plurality of thermal energy absorption (TEA) nodes disposed adjacent to one or more heat sources which are interconnected with one another and also a plurality of thermal energy dissipation (TED) nodes through a capillary system that encloses a bi-phase fluid. As TE is absorbed into the bi-phase fluid at individual TEA nodes local condition changes such as, for example, pressure and/or volume increases induce convection of the absorbed TE away from the individual TEA nodes. As TE dissipates from the bi-phase fluid at individual TED nodes local condition changes such as, for example, pressure and/or volume decreases further induce convection of additional absorbed TE toward the individual TED nodes.