Immersion Tank Manifold and Weir for Uniform Cooling Flow
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Solution Overview
Problem
Conventional immersion tanks face challenges in achieving uniform temperature distribution and efficient heat transfer due to turbulent fluid flow and energy inefficiencies, particularly in high thermal output applications.
Innovation Solution
The immersion tank incorporates a manifold with offset holes and a circular weir design featuring a vortex generator to promote laminar flow and controlled turbulence, enhancing heat exchange and reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional immersion tanks use simple fluid circulation, then the system is easy to operate, but temperature distribution is non-uniform and heat transfer efficiency is poor
Solution Approach 1:
The tank is divided into multiple functional zones: a manifold system with multiple outlets for distributed fluid introduction, a vortex generator section for controlled turbulence, and a weir structure for flow control. This segmentation allows each zone to perform a specific function that contributes to overall temperature uniformity without requiring complete redesign of the entire system.
Solution Approach 2:
A circular weir structure is employed instead of traditional linear configurations. The curved geometry of the weir and vortex generator creates rotational flow patterns that enhance mixing and temperature distribution. The circular shape promotes more uniform fluid circulation compared to angular or linear alternatives.
2Power
If turbulent fluid flow is used to enhance heat transfer, then heat exchange efficiency improves, but energy consumption increases
Solution Approach 1:
Instead of creating full turbulence throughout the entire fluid volume, the vortex generator introduces localized rotational flow only in specific regions where it most effectively enhances heat transfer. This partial application of turbulence-generating action achieves improved heat exchange while minimizing the energy required to maintain the flow.
Solution Approach 2:
The system changes the flow regime parameter from simple linear circulation to rotational vortex flow. This parameter change in flow pattern dramatically improves heat transfer coefficients without requiring proportional increases in pumping power, as the vortex motion creates more effective fluid mixing and boundary layer disruption.
3Temperature
If simple outlet structures are used, then device complexity is reduced, but temperature differential and cooling effectiveness decrease
Solution Approach 1:
The manifold system pre-distributes the incoming fluid to multiple outlets before it enters the main tank volume. This preliminary distribution action ensures that cooling is initiated at multiple locations simultaneously, creating more effective temperature differentials and improving overall cooling effectiveness without requiring the outlet structure itself to be overly complex.
Solution Approach 2:
The weir structure acts as an intermediary element between the vortex generator and the main tank outlet. It controls and regulates the flow transition, allowing the system to achieve higher temperature differentials by managing the fluid dynamics in a staged manner rather than through a single simple opening.
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 design achieves a temperature differential (ΔT) of 35 to 40 degrees Fahrenheit, providing four times the cooling effect of traditional tanks, with improved energy efficiency and uniform temperature distribution across the fluid volume.
Implementation Method 1
a circular weir design featuring a vortex generator to promote laminar flow and controlled turbulence, enhancing heat exchange
Implementation Method 2
The fluid may be circulated as the fluid absorbs heat from the components
Data Source
AI summary
An immersion tank with a manifold coupled to an inlet and a weir coupled to an outlet. The manifold distributes a fluid throughout the immersion tank and promotes a laminar flow over immersed objects to the weir. The weir introduces a controlled turbulence to enhance cooling of returned fluid.