System and method for testing two-phase liquid cooling
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Solution Overview
Problem
Existing pump-driven two-phase cooling systems for power and electronic equipment face challenges in accurately controlling the inlet liquid temperature of the working medium and suffer from significant energy loss due to inefficient heat management.
Innovation Solution
A system and method that splits the outlet pipeline of the power pump into two loops, utilizing a regenerator and preheater to achieve precise control of inlet liquid temperature through energy exchange between liquid and gas-liquid two-phase working media, reducing energy loss by optimizing heat transfer processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple single-phase liquid cooling scheme is used, then the system structure is simple, but it cannot meet the heat dissipation requirements of high power consumption density equipment
Solution Approach 1:
The patent employs phase change of the working medium (liquid to vapor in evaporator, vapor to liquid in condenser) to achieve efficient heat transfer. The two-phase cooling system utilizes evaporation and condensation processes to dissipate heat from high power density equipment, providing superior heat dissipation effectiveness compared to single-phase systems.
2Ease of operation
If the inlet liquid temperature of the working medium is not accurately controlled, then the system operation is simple, but the heat transfer efficiency is poor and energy loss is large
Solution Approach 1:
The patent implements temperature sensing and control mechanisms that monitor the inlet liquid temperature and adjust the system operation accordingly. By measuring the actual temperature and comparing it with the target temperature, the system can regulate the working medium flow and heating/cooling processes to maintain optimal temperature, thereby reducing energy loss and improving heat transfer efficiency.
Solution Approach 2:
The patent dynamically adjusts key parameters such as inlet liquid temperature, flow rate, and pressure to optimize system performance. By controlling the temperature of the working medium entering the evaporator and adjusting the flow rate through regulating valves, the system achieves efficient heat transfer while minimizing energy consumption.
3Loss of energy
If a regenerator with energy exchange between loops is added, then the inlet liquid temperature control precision is improved and energy loss is reduced, but the device complexity increases
Solution Approach 1:
The patent combines the regenerator with the existing cooling system loops, integrating energy exchange functionality into the overall system architecture. The regenerator utilizes heat exchange between different loops to pre-condition the working medium, recovering energy that would otherwise be lost and reducing the overall energy consumption of the system.
Solution Approach 2:
The regenerator enables the system to self-regulate and self-optimize by internally exchanging energy between loops. The working medium in one loop provides heat or cooling to another loop, creating a self-sustaining energy management mechanism that reduces external energy input requirements and improves overall system efficiency.
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
Enables accurate control of inlet liquid temperature and reduces energy consumption by leveraging residual heat from the two-phase working medium, thereby enhancing the efficiency and stability of the cooling process.
Implementation Method 1
energy exchange is allowed between the first loop and the second loop in the regenerator
Implementation Method 2
a preheater and a second regulating valve; where an inlet of the preheater is in communication with an outlet of the first loop
Implementation Method 3
a condenser having an inlet in communication with an outlet of the second loop; where the condenser is configured to cool the working medium passing through the object under test
Implementation Method 4
a power pump having an inlet in communication with an outlet of the liquid storage tank; and the power pump is configured to convey the working medium to the first loop
Data Source
AI summary
A system and method for testing two-phase liquid cooling are disclosed. The system may include, a liquid storage tank; a power pump having an inlet in communication with an outlet of the liquid storage tank; a regenerator having a first loop and a second loop and a first regulating valve; a preheater and a second regulating valve; a liquid outlet port and a liquid outlet valve; a liquid inlet port and a liquid inlet valve; and a condenser having an inlet in communication with an outlet of the second loop.