Passive Thermal-Expansion Heat Transfer Loop Without Compressor
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Solution Overview
Problem
Conventional heat transfer and refrigeration devices are energy-intensive, complex, costly, and require fossil fuels, electro-mechanical compressors, and dedicated maintenance, limiting their accessibility and efficiency in various applications.
Innovation Solution
A heat transfer device comprising a continuous loop of heating and cooling sections with a one-way check valve and pressure relief valve, allowing pressurized working fluid to flow without a compressor, enabling heat transfer and refrigeration without fossil fuels or electro-mechanical components, and featuring adjustable orifice members for controlled fluid release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electro-mechanical compressors and pumps are used in heat transfer devices, then reliable heat transfer can be achieved, but energy consumption increases and device complexity increases
Solution Approach 1:
The patent removes the electro-mechanical compressor and pump from the heat transfer system, extracting these energy-consuming components entirely. The system achieves fluid circulation and pressure regulation through passive thermal expansion and contraction of the working fluid, combined with check valves and pressure relief valves, eliminating the need for active mechanical compression and pumping.
Solution Approach 2:
The working fluid serves itself by utilizing its own thermal expansion and contraction properties to drive circulation through the system. The fluid expands and pressurizes in the heating section, forcing itself through the check valve into the cooling section, then contracts and returns to the heating section, creating a self-sustaining cycle without external energy input.
2Reliability
If conventional heat transfer devices with multiple parts and stages are used, then desired heat transfer performance can be achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts and eliminates multiple complex components including electro-mechanical compressors, pumps, blowers, and complex control systems. The simplified system retains only essential elements: heating section, cooling section, check valve, and pressure relief valve, dramatically reducing part count while maintaining heat transfer functionality.
Solution Approach 2:
The working fluid performs multiple functions simultaneously: it transfers heat from the heating to cooling section, regulates its own pressure through thermal expansion, drives circulation through the system, and provides cooling effect in the cooling section. This multi-functionality reduces the need for separate dedicated components.
3Reliability
If conventional heat transfer devices are used, then heat transfer function is achieved, but maintenance requirements and operational costs increase
Solution Approach 1:
The patent removes electro-mechanical components that require maintenance such as compressors, pumps, and blowers. These removed components are typically the most maintenance-intensive parts of conventional heat transfer systems, as they contain moving parts, seals, and electrical components that wear and fail over time.
Solution Approach 2:
The system requires no operational maintenance as the working fluid automatically regulates itself through thermal expansion and contraction. The check valve passively prevents backflow without requiring actuation or maintenance, and the pressure relief valve automatically releases excess pressure when needed, eliminating the need for monitored or adjusted maintenance.
4Power
If gravity-assisted vertical arrangements are used to circulate working fluid, then compressor requirements are reduced, but device complexity and installation requirements increase
Solution Approach 1:
The patent removes the requirement for gravity-assisted vertical arrangements by eliminating the need for gravity to drive fluid circulation. The system uses thermal expansion and check valves instead, allowing flexible installation orientations without requiring vertical positioning or gravity-dependent flow paths.
Solution Approach 2:
The system dynamically adapts to different installation orientations through the thermal expansion-driven circulation mechanism. The working fluid's expansion and contraction automatically adjust to the system's physical configuration, whether horizontal, vertical, or at any angle, providing orientation-independent operation.
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 device provides efficient heat transfer and refrigeration with reduced energy and maintenance costs, simplicity, and versatility across various applications, including cooling or heating of structures and environments, without the need for gravity or conventional compressors.
Implementation Method 1
the heating section is in an area with a higher temperature than the area the cooling section is in. As heat is transferred to and absorbed by the working fluid in the heating section
Implementation Method 2
Working fluid within the cooling section then transfers such absorbed heat into the area surrounding the cooling section
Implementation Method 3
Upon reaching a predetermined pressure, the pressurized working fluid is then forcibly released from the heating section into the cooling section through the pressure relief valve
Implementation Method 4
heating and cooling sections of uninsulated conduit are affixed together in a continuous loop with a pressure relief valve and a one-way check valve so working fluid can flow in a single direction therein
Data Source
AI summary
A refrigeration and/or heat transfer device includes a heating section and cooling section, a release member, and a one-way check valve affixed together in a continuous loop so working fluid may flow in one direction therein. The heating section absorbs heat and transfers such heat to the working fluid, thereby heating, expanding and increasing pressure upon the working fluid therein. The pressurized working fluid is released in a regulated manner from the heating section to the cooling section, thereby carrying the heat away. The released working fluid cools and transfers its heat to the surroundings within the cooling section. As released working fluid enters the cooling section, such fluid displaces already cooled working fluid, pushing such fluid through the one-way check valve back into the heating section to absorb heat. The working fluid may undergo a phase change or remain in a single phase throughout to enhance heat transfer.