Integrated Conveying Device in Storage Container to Prevent Cavitation
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Solution Overview
Problem
In cooling systems for aircraft, it is challenging to accommodate and position components to achieve the necessary pressure increase for subcooling the coolant medium, preventing condensation and reducing wear on conveying devices due to limited installation space and the need to avoid cavitation.
Innovation Solution
A storage assembly with a conveying device integrated into the storage container, eliminating the need for a connecting pipe and reducing the risk of cavitation and condensation, by ensuring the conveying device is always flooded with liquid coolant medium, thus minimizing wear and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cooling system with separate storage containers and conveying devices is used, then the system can store and convey coolant medium, but the conveying device experiences increased wear and cavitation due to steam bubble formation
Solution Approach 1:
The conveying device is integrated directly into the storage container by forming it as a recess in the container wall, eliminating separate connecting pipes and ensuring the inlet is always submerged in liquid coolant medium, thereby preventing cavitation and reducing wear
2Reliability
If the conveying device is positioned to achieve necessary pressure increase for subcooling, then cavitation is prevented, but the installation space requirements increase due to limited aircraft cabin space
Solution Approach 1:
The conveying device is merged with the storage container structure, forming an integrated unit that maintains necessary subcooling pressure while occupying minimal installation space within the aircraft cabin
Solution Approach 2:
The conveying device is nested within the storage container wall structure, with the inlet recessed into the container to ensure submersion in liquid coolant medium without increasing external dimensions
3Ease of manufacture
If connecting pipes are used between storage container and conveying device, then the components can be separate and easier to manufacture, but the risk of cavitation and condensation increases
Solution Approach 1:
The storage container and conveying device are merged into a single integrated component, eliminating connecting pipes and ensuring continuous liquid contact from the storage medium through the conveying inlet, thereby eliminating cavitation risk while maintaining manufacturing feasibility
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 configuration reduces wear on the conveying device, prevents cavitation, and minimizes energy consumption by ensuring the coolant medium is always in a liquid state, enhancing the reliability and efficiency of the cooling system.
Implementation Method 1
the formation of steam bubbles (cavitation) in the conveying device must be prevented as far as possible
Implementation Method 2
corresponding subcooling of the coolant medium stored intermediately in the storage containers is necessary
Implementation Method 3
prevents condensation of the coolant medium
Data Source
AI summary
A storage assembly, which is in particular suitable for use in a cooling system designed for an operation with a two-phase coolant medium, comprising a storage container with a receiving area for receiving a coolant medium and a conveying device for conveying coolant medium from the receiving area of the storage container. The conveying device is formed integral with the storage container of the storage assembly.