Two-phase immersion cooling device
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Solution Overview
Problem
Existing two-phase immersion cooling devices have limited condensation capacity due to a small heat exchange area, which cannot meet the cooling requirements of high-power and high-heat-density heating elements, especially in data centers, and result in larger, more costly systems with inefficient space utilization.
Innovation Solution
The design includes an upper box body with multiple rows and columns of condensing tubes filling the cavity, allowing for a larger condenser with increased heat exchange surface area, and a detachable lower box body for easy maintenance, eliminating the need for a pass-through cavity, thus optimizing space and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the condenser is arranged along the inner wall of the box body to increase heat exchange area, then the cooling capacity for high heat flux density heating elements is improved, but the space utilization becomes inefficient and the device volume increases
Solution Approach 1:
The condenser tubes are arranged in a three-dimensional configuration filling the upper box body volume rather than being confined to wall-mounted arrangements. Multiple rows and columns of condensing tubes extend vertically and horizontally to utilize the full spatial capacity of the upper box body, transforming a two-dimensional wall arrangement into a three-dimensional volume-filling structure that dramatically increases heat exchange area without increasing device footprint.
2Ease of operation
If the upper box body reserves cavity for heating elements to pass through, then the ease of operation is improved, but the space available for condenser becomes limited and condensation capacity is reduced
Solution Approach 1:
The box body is divided into two detachable sections: the upper box body containing the condenser and the lower box body containing the heating elements and coolant reservoir. This segmentation allows the upper box body to be fully utilized for condenser placement without needing to reserve passage space, while the lower box body can be easily removed to facilitate heating element installation and maintenance, thus resolving the space conflict.
3Power
If the volume of the box body is increased to accommodate larger condenser, then the condensation capacity is improved, but the device becomes larger and more costly with poor space utilization
Solution Approach 1:
The condenser tubes are nested within the upper box body in a compact three-dimensional arrangement, with multiple rows and columns of tubes filling the available volume. This nested configuration maximizes the condenser heat exchange area within the fixed volume of the upper box body, achieving high condensation capacity without increasing the overall device footprint or requiring additional space.
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 enables a significant increase in heat transfer capacity, reducing the overall size and cost while improving space utilization, allowing for effective cooling of higher heat loads with a more compact and efficient two-phase immersion cooling device.
Implementation Method 1
The condenser comprises multiple rows and multiple columns of condensing tubes; wherein each row and each column of the condensing tubes are arranged from the first side wall to the third side wall or from the second side wall to the fourth side wall, and upward from bottom of the upper box body to fill the first cavity
Implementation Method 2
A plurality of heating elements are disposed in the second cavity and immersed in the coolant
Implementation Method 3
two-phase immersion cooling method is one of the most effective server cooling technologies
Data Source
AI summary
A two-phase immersion cooling device includes an upper box body, a lower box body, a plurality of heating elements, and a condenser. The walls of the upper box body form a first cavity. The lower box body defines a second cavity containing coolant. The heating elements are disposed in the second cavity and immersing in the coolant. The condenser in the upper box body includes multiple rows and columns of condensing tubes, is arranged across or along the upper box body to fill the first cavity. The lower box body is detachably and hermetically connected to the bottom of the upper box body, connecting the second cavity with the first cavity to form an accommodating cavity.