Liquid Immersion Cooling Tank with Temperature-Controlled Circulation
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Solution Overview
Problem
Current liquid immersion cooling systems for data centers incur high initial and operational costs due to the use of expensive cooling liquids like Fluorinert and the need for heat exchangers, which also lead to inefficient cooling and increased power consumption.
Innovation Solution
A data center configuration that eliminates the heat exchanger by using a closed-loop liquid immersion cooling system with a poly-α-olefin based synthetic oil as the cooling liquid, where the cooling liquid is circulated between a liquid immersion tank and a cooling tower, and the system includes controllers to manage the flow rate and operation of the cooling tower based on temperature differences, optimizing the cooling process without heat exchange between the cooling liquid and cooling water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If expensive cooling liquids like Fluorinert are used in liquid immersion cooling systems, then effective cooling of information processing apparatuses is achieved, but initial costs and operational costs increase significantly
Solution Approach 1:
The patent replaces expensive cooling liquids (Fluorinert) with cheaper alternatives like poly-α-olefin based synthetic oil. The system uses a closed-loop configuration where the cooling liquid is continuously circulated and reused, eliminating the need for frequent replacement while maintaining cost-effectiveness. This directly addresses the contradiction by substituting expensive materials with economical ones without sacrificing cooling performance.
2Temperature
If heat exchangers are used in liquid immersion cooling systems, then heat dissipation is achieved, but device complexity and operational costs increase
Solution Approach 1:
The patent removes the heat exchanger component from the liquid immersion cooling system. Instead of using a heat exchanger to transfer heat from the cooling liquid to cooling water, the system directly circulates the cooling liquid between the information processing apparatus and the environment, simplifying the overall system architecture while maintaining heat dissipation functionality.
Solution Approach 2:
The patent integrates the cooling liquid circulation system to directly contact with the information processing apparatus components that need cooling. The cooling liquid serves multiple functions simultaneously: it cools the apparatus, transports heat away, and is continuously reused in a closed loop, eliminating the need for separate heat exchanger components and reducing system complexity.
3Temperature
If traditional liquid immersion cooling systems are used with heat exchangers, then cooling function is provided, but power consumption increases due to inefficient cooling process
Solution Approach 1:
The patent implements a closed-loop cooling liquid circulation system where the cooling liquid continuously flows between the information processing apparatus and the environment without interruption. This continuous circulation ensures consistent cooling performance and eliminates the energy losses associated with start-stop operations or inefficient heat transfer processes, thereby reducing overall power consumption while maintaining effective temperature control.
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 the initial and operational costs of the data center by using a less expensive cooling liquid and optimizing the cooling process, ensuring efficient heat dissipation and reducing power consumption, while maintaining effective temperature control for the information processing apparatuses.
Implementation Method 1
a liquid immersion tank that holds an information processing apparatus in a cooling liquid
Implementation Method 2
a cooling apparatus that cools a pipe exposed to outside air and through which the cooling liquid flows from the liquid immersion tank
Implementation Method 3
a cooling apparatus that cools a pipe exposed to outside air and through which the cooling liquid flows
Implementation Method 4
a pump apparatus that delivers the cooling liquid from the cooling apparatus to the liquid immersion tank
Data Source
AI summary
A data center includes: a liquid immersion tank that holds an information processing apparatus in a cooling liquid; a cooling apparatus that cools a pipe exposed to outside air and through which the cooling liquid flows from the liquid immersion tank; and a pump apparatus that delivers the cooling liquid from the cooling apparatus to the liquid immersion tank.