Rack-Mount Server Heat Dissipation System Using Liquid Cooling
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Solution Overview
Problem
Ordinary rack-mount servers face inefficiencies in heat dissipation due to slow and inefficient heat removal by system fans, which can lead to damage from excessive heat.
Innovation Solution
A heat dissipation system comprising a heat dissipation device with a combination of heat-absorbing boxes, water tanks, fins, pumps, and fans, where heated water is circulated through the system to efficiently transfer heat from server units to be dissipated by fans, utilizing heat-conductive materials and a closed-loop water circulation for continuous cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If system fans are used to dissipate heat, then the structure is simple and easy to implement, but the heat dissipation efficiency is low and slow
Solution Approach 1:
The heat dissipation system is segmented into multiple functional modules: heat absorbing boxes positioned at heat-generating locations, water tanks for coolant storage, pumps for fluid circulation, and fins for heat exchange. This segmentation allows each component to perform its specific function efficiently, resolving the contradiction by maintaining structural simplicity through modular design while achieving high heat dissipation efficiency through specialized functions of each segment
Solution Approach 2:
A coolant (water or other heat transfer fluid) is introduced as an intermediary substance to transfer heat from the heat absorbing boxes through the water tanks and pumps to the fins, and finally to the surrounding environment. This intermediary enables rapid heat removal that far exceeds what system fans alone could achieve, while the overall system remains relatively simple to implement
2Device complexity
If system fans alone are used for heat dissipation, then the device complexity is low, but the heat removal speed is insufficient and may cause damage
Solution Approach 1:
The system employs hydraulic principles by using liquid coolant circulated through water tanks and pumps to transfer heat. This hydraulic approach enables rapid heat removal through the high specific heat capacity and flow rate of the liquid, achieving fast heat removal speed while keeping device complexity moderate through the use of standard pump and tank components
Solution Approach 2:
The invention transitions from purely air-based convection cooling (single dimension) to a liquid-based cooling system with circulation loops (adding another dimension of heat transfer). This dimensional change in the heat transfer medium and method enables significantly faster heat removal speed while maintaining reasonable device complexity through systematic design
3Device complexity
If heat is not removed rapidly, then the system remains simple, but heat accumulation causes damage to server units
Solution Approach 1:
Heat absorbing boxes are positioned in advance at locations where heat is generated by server units, and the coolant circulation system is pre-configured with water tanks and pumps. This preliminary arrangement ensures that heat is captured and removed rapidly before it can accumulate to damaging levels, protecting server units while maintaining relatively simple system design through proactive heat management
Solution Approach 2:
The system converts the harmful heat generated by server units into a beneficial cooling effect by using the heat to drive circulation and ultimately dissipating it through the fins to the surrounding environment. This approach transforms the potential damage-causing heat into a controlled heat transfer process that protects the server units while maintaining system simplicity
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 effectively enhances heat dissipation efficiency, preventing damage to server units by rapidly and continuously removing heat through a combination of water circulation and fan-assisted cooling, improving the operational reliability of rack-mount servers.
Implementation Method 1
heated water is circulated through the system to efficiently transfer heat from server units
Implementation Method 2
dissipate the heat from the fins... fans dissipate the heat from the fins
Implementation Method 3
two water pumps... pumps the heated water of each heat absorbing box into the first water tank
Data Source
AI summary
A heat dissipation system includes a chassis, a number of heat absorbing boxes, a number of pipes, a first water tank and a second water tank received in the chassis, a number of fins sandwiched between the first water tank and the second water tank, a number of fans aligning with the fins, and a water pump connected between the first water tank and the second water tank. Each heat absorbing box includes a water inlet and a water outlet, and heat from electrical components is gathered by the boxes, transferred to the water tanks, and the fans blow air through the fins to dissipate the gathered heat.