Segmented Half-Tube Cooling Elements for Steel Furnace Heat Flux
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Solution Overview
Problem
Conventional cooling elements in the steel industry face limitations in achieving high heat transfer rates and water velocities, and are restricted by the choice of materials and fabrication methods, making them inadequate for extreme heat-flux conditions and diverse application requirements.
Innovation Solution
The development of high heat flux resistant, fluid-cooled elements with selectively fabricated half-tubes or pipes that allow for higher coolant velocities and improved heat transfer capabilities, enabling the use of various materials and fabrication methods such as rolling, forging, or extruding to optimize heat transfer and elasticity, and allowing for the selection of materials based on cost-benefit analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional tubes with 2.5 inch ID are used, then the structure is simple and easy to manufacture, but the heat transfer rate and water velocity are limited
Solution Approach 1:
The cooling system is divided into multiple independent half-tubes instead of using a single conventional tube. This segmentation allows each half-tube to have optimized dimensions and materials, improving heat transfer efficiency while maintaining manufacturing simplicity through modular assembly.
Solution Approach 2:
The invention allows different materials to be used for half-tubes based on specific application requirements. This composite approach enables optimization of heat transfer properties and mechanical strength for each component, achieving higher heat transfer rates without excessive complexity.
2Productivity
If higher water velocities are achieved, then heat transfer rate improves, but the requirements for tube material and fabrication precision increase
Solution Approach 1:
Dividing the cooling system into multiple half-tubes allows for optimized flow distribution. Each half-tube can be manufactured with standard precision requirements while achieving higher overall coolant velocities through parallel flow paths and reduced individual tube constraints.
Solution Approach 2:
The invention changes the geometric parameters of the cooling tubes, using half-tube configurations that optimize the surface area to volume ratio. This parameter optimization enables higher heat transfer coefficients at moderate coolant velocities, reducing the need for excessively high velocities and their associated manufacturing precision demands.
3Reliability
If a wider range of materials are selected, then heat transfer and elasticity can be optimized, but the fabrication complexity and cost increase
Solution Approach 1:
The modular half-tube design allows different materials to be selected for different components based on their specific functional requirements. This segmentation enables optimization of heat transfer and elasticity properties without requiring complex multi-material fabrication processes, as each half-tube can be manufactured separately using appropriate materials and methods.
Solution Approach 2:
The half-tube design creates a universal component that can be manufactured from various materials using different fabrication methods. This universal approach simplifies manufacturing by using standardized joining and assembly processes that work across different material types, reducing overall fabrication complexity despite material diversity.
4Object-affected harmful factors
If conventional cooling elements are used, then the design is simple, but they cannot withstand extreme heat-flux conditions
Solution Approach 1:
The cooling system is segmented into multiple half-tubes that can be arranged to maximize heat dissipation surface area. This segmentation allows the system to handle extreme heat flux conditions by distributing thermal loads across multiple parallel cooling paths, achieving superior heat flux resistance without excessive overall complexity.
Solution Approach 2:
The invention employs different materials for half-tubes selected based on their thermal and mechanical properties. This composite material approach enables the cooling system to withstand extreme heat-flux conditions by using materials specifically suited for high-temperature and high-stress environments, while maintaining reasonable design complexity through modular 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
This solution enhances equipment longevity and on-line reliability by improving the ability to withstand high heat flux, corrosive, and abrasive environments, while enabling the use of a wider range of materials and fabrication techniques, resulting in increased heat transfer rates and coolant velocities, thus improving the operability of cooling elements.
Implementation Method 1
high heat flux resistant, fluid-cooled elements having relatively high heat transfer rates
Implementation Method 2
increased heat transfer capability... resulting in increased heat transfer rates and coolant velocities
Data Source
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AI summary
A selectable heat exchange apparatus and method of use are provided. The heat exchange apparatus comprises a plurality of half-tubes fabricated from any selected material and in any selected method of manufacture.