Liquid Thermal Pre-Conditioning for Extreme-Temperature Startup
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Solution Overview
Problem
Information handling systems face challenges in maintaining optimal temperature ranges, especially in extreme conditions, which can lead to overheating, instability, and reduced component lifespan, as traditional cooling methods may not effectively pre-condition temperatures before system activation.
Innovation Solution
A liquid thermal control system with a fluidic subsystem, temperature control elements, and a control subsystem that pre-conditions the system temperature to a desired range before full powering on, using a bi-modal heat exchanger to both heat and cool the liquid, ensuring safe operational temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional passive cooling systems are used, then heat rejection is achieved through air movers, but the system cannot pre-condition temperature before operation and fails in extreme temperature conditions
Solution Approach 1:
The liquid thermal control system is designed to perform multiple functions: it can both cool and heat the information handling system depending on temperature conditions. The system includes heating elements, cooling elements, and a bi-modal heat exchanger that can operate in different modes, allowing the system to adapt to both cold and hot extreme conditions rather than just rejecting heat as traditional systems do.
Solution Approach 2:
The system pre-conditions the temperature of the information handling system before full operation begins. The control subsystem activates heating or cooling elements in advance to bring the system within the acceptable operating temperature range, ensuring reliable operation from startup and preventing thermal shock to components.
2Temperature
If active liquid cooling systems are used, then effective heat removal is achieved, but the system cannot handle extremely low temperatures and lacks heating capability
Solution Approach 1:
The liquid thermal control system integrates both heating and cooling capabilities within a single unified system. Heating elements can warm the liquid when temperatures are low, while cooling elements can remove heat when temperatures are high. The bi-modal heat exchanger can switch between heating mode and cooling mode, providing full temperature range coverage from extreme cold to extreme hot conditions.
3Productivity
If the system operates immediately in extreme temperatures, then rapid operation is achieved, but component lifespan is reduced due to thermal stress and overheating
Solution Approach 1:
The control subsystem performs preliminary temperature conditioning before allowing full system operation. When the system detects extreme temperature conditions, it activates heating or cooling elements to gradually bring components within the acceptable operating temperature range, preventing thermal shock and extending component lifespan while minimizing startup delay.
Solution Approach 2:
The system provides thermal cushioning by using the liquid thermal control system to buffer temperature extremes before they reach sensitive components. The liquid circulating through heat exchangers and thermal contact with components absorbs or releases heat in advance, protecting components from sudden thermal stress and creating a stable thermal environment for reliable operation.
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 reduces thermal control issues by maintaining safe operating temperatures, preventing overheating and instability, and allowing for rapid transition from standby to active mode, thereby extending component lifespan and improving system reliability.
Implementation Method 1
a fluidic subsystem configured to convey a liquid proximate to the information handling resource in order to transfer heat from the information handling resource to the fluid or from the fluid to the information handling resource
Implementation Method 2
one or more temperature control elements configured to regulate temperature of the liquid
Implementation Method 3
using a bi-modal heat exchanger to both heat and cool the liquid, ensuring safe operational temperatures
Data Source
AI summary
A method for providing thermal control of an information handling system may include in response to a request to power on the information handling system, in order to pre-condition a temperature associated with the information handling system to within a desired temperature range, receiving an indication of a temperature associated with the information handling system and based on the indication of the temperature associated with the information handling system, control the one or more temperature control elements for regulating a liquid of a liquid thermal control system to cause the temperature associated with the information handling system to fall within the desired temperature range prior to full powering on of the information handling system.