Immersion Fluid Module Preheating for Low-Temperature Server Startup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Server devices struggle to start up properly in very low temperature environments, such as −40° C., leading to potential failures.
Innovation Solution
An immersion fluid module with a tank, heat exchanger, condenser, and pipe system is used to raise ambient temperature by circulating a second fluid with a higher temperature than a preset value through a heat exchanger to a first fluid, ensuring the server device reaches activation temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the server device is placed in a very low temperature environment (e.g. −40° C.), then the ambient temperature is reduced, but the server device fails to start up properly
Solution Approach 1:
The system performs preliminary heating action by circulating the second fluid with higher temperature through the heat exchanger before the server device starts up, raising the ambient temperature in the tank to an appropriate level, thereby ensuring the server device can start up properly in originally low temperature environments
Solution Approach 2:
The heat exchanger acts as an intermediary component that transfers heat from the second fluid to the first fluid and the surrounding environment, enabling temperature regulation without direct contact between the heating medium and the server device
2Reliability
If a heating system is added to raise ambient temperature, then the startup reliability is improved, but the device complexity increases
Solution Approach 1:
The second fluid circulation system serves multiple functions: it heats the environment during startup phase and can potentially serve as part of the cooling system during operation, reducing the need for separate dedicated heating and cooling systems
Solution Approach 2:
The heating function is merged with the existing fluid circulation infrastructure by using the same tank and fluid system, combining the heating and cooling capabilities into a unified immersion-based thermal management system
3Adaptability or versatility
If multiple openings are added to the tank for heating and cooling systems, then the temperature control capability is improved, but the manufacturing complexity increases
Solution Approach 1:
The existing tank openings designed for cooling purposes are made multi-functional by routing the second fluid circulation through the same heat exchanger, allowing the same structural openings to serve both cooling and heating operations
Solution Approach 2:
The system achieves different temperature control modes by changing the operational parameters of the second fluid circulation rather than adding separate physical openings, using the same structural pathway for both heating and cooling functions
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
The system effectively raises ambient temperature for server device activation and maintains efficient heat dissipation during operation, simplifying manufacturing and reducing costs by using a unidirectional loop with fewer tank openings.
Implementation Method 1
the second fluid flows through the heat exchanger and transfers heat to the first fluid through the heat exchanger to raise the ambient temperature where the electronic device is placed
Data Source
AI summary
The invention provides an immersion fluid module including a tank, a heat exchanger, a condenser, and at least one pipe. The tank contains a first fluid. An electronic device is disposed in the tank and is at least partially immersed in the first fluid in a liquid state. The heat exchanger is disposed in the tank and is at least partially immersed in the first fluid in the liquid state. The condenser is disposed in the tank. The pipe connects the heat exchanger and the condenser. A second fluid is provided to the pipe, and a temperature of the second fluid is higher than a preset value. When an ambient temperature of the electronic device is lower than the preset value, the second fluid flows through the heat exchanger to raise the ambient temperature of the electronic device. The invention also provides a server system.