Multi-Stage Boiling Cooler Layout for Low-Height Heat Rejection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional boiling coolers face challenges in reducing height dimension while maintaining sufficient cooling performance, as the horizontal flow path and condensing part configuration lead to increased height and limited heat transfer efficiency.
Innovation Solution
The boiling cooler design incorporates a condensing part with multiple stages of refrigerant passages aligned vertically, external passages for enhanced heat exchange, and a connecting pipe that connects the boiling part to the condensing part laterally, allowing for reduced height and improved heat radiation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the flow path and condensing part are installed on the upper surface of the boiling part in a horizontal configuration, then the cooling performance is maintained, but the total height dimension of the cooler increases
Solution Approach 1:
The condensing part is reconfigured from a horizontal arrangement on the upper surface to a vertical arrangement with multiple stages stacked in the height direction. This dimensional transformation allows the condensing part to utilize vertical space instead of horizontal space, thereby reducing the overall height requirement while maintaining the heat exchange functionality.
Solution Approach 2:
The condensing part is divided into multiple stages (first stage, second stage, etc.) with individual refrigerant passages and external passages for each stage. This segmentation allows for compact vertical stacking while maintaining sufficient heat exchange area across multiple levels, effectively reducing the total height dimension.
2Length of stationary object
If the size of the boiling part or condensing part is reduced to decrease height dimension, then the height dimension is reduced, but the cooling performance becomes insufficient
Solution Approach 1:
By transitioning from a horizontal to a vertical configuration with multiple stages, the heat exchange surfaces are stacked in the height direction. This allows the cooling performance to be maintained through increased vertical arrangement of heat exchange areas rather than requiring larger horizontal dimensions.
Solution Approach 2:
Multiple refrigerant passages and external passages are nested vertically within the condensing part structure. Each stage contains its own refrigerant passage and external passage, allowing for compact integration of multiple heat exchange functions in a vertically stacked manner that maintains performance while reducing overall height.
3Length of stationary object
If multiple stages of refrigerant passages are aligned in the height direction, then the height dimension is reduced and heat transfer area is increased, but the device complexity increases
Solution Approach 1:
The condensing part is segmented into multiple identical or similar stages, each with its own refrigerant passage and external passage. This modular segmentation allows for systematic arrangement and simplifies the design process by repeating proven units, thereby managing complexity while achieving the desired height reduction and heat transfer area increase.
Solution Approach 2:
Multiple refrigerant passages and external passages are merged into a single integrated condensing part structure. The stages are combined vertically with shared support structures and connections, reducing the overall complexity compared to having separate independent units while maintaining the benefits of multiple heat exchange stages.
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 effectively reduces the height dimension of the cooler while ensuring sufficient cooling performance by optimizing heat transfer and utilizing space efficiently, even within restricted height constraints.
Implementation Method 1
a boiling part (10) boiling a refrigerant (1) contained in an internal space (11)
Implementation Method 2
a boiling part including a heat receiving surface thermally connected to a heat source
Implementation Method 3
a condensing part (20) condensing a refrigerant gas (1a) by heat exchange with an external fluid (2)
Implementation Method 4
a connecting pipe (30) that connects the boiling part (10) to the condensing part (20) and circulates the refrigerant (1)
Data Source
AI summary
A boiling cooler includes a boiling part, a condensing part arranged in a substantially horizontal direction with respect to the boiling part, and a connecting pipe that connects the boiling part to the condensing part. The condensing part includes a plurality of stages of refrigerant passages, a first external passage provided between the refrigerant passages, and a second external passage provided on an outer surface of at least one of an uppermost refrigerant passage and a lowermost refrigerant passage.