Computer room heat-pipe air conditioning system with emergency cooling function and control and method thereof
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Solution Overview
Problem
High heat density in data centers leads to temperature rises during municipal power failures or refrigeration equipment failures, causing server performance degradation, hardware damage, and significant economic losses, with existing cooling technologies unable to ensure continuous cooling.
Innovation Solution
A heat pipe air conditioning system with an emergency cooling function, incorporating a phase change energy storage module, condenser, evaporator, and backup power sources, which uses a refrigerant circulation loop and phase change materials to maintain cooling during power outages and equipment failures, with a control system managing valve operations and energy distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phase change energy storage module is added to the system, then emergency cooling capability is improved, but device complexity increases
Solution Approach 1:
The phase change energy storage module performs preliminary cooling action by storing cooling capacity during normal operation and releasing it during emergencies. The module pre-charges the cooling system by maintaining phase change materials in a ready state that can rapidly absorb heat when power failure or equipment failure occurs, ensuring continuous cooling without immediate system intervention.
Solution Approach 2:
The phase change energy storage module acts as an intermediary between the refrigeration unit and the data center equipment. It buffers and regulates heat transfer, absorbing excess heat during emergencies and releasing stored cooling capacity gradually, thereby mediating the thermal environment to protect sensitive equipment during power disruptions.
2Adaptability or versatility
If multiple circulation loops are implemented, then cooling coverage is improved, but device complexity increases
Solution Approach 1:
The cooling system is segmented into two independent circulation loops: a refrigerant circulation loop (evaporator and condenser) and a cold water circulation loop (refrigeration unit and phase change energy storage module). Each loop handles specific thermal management tasks, allowing the system to selectively activate only the necessary loop based on operational conditions, thereby reducing effective complexity while maintaining comprehensive cooling coverage.
Solution Approach 2:
The dual circulation loop design provides multi-functionality by enabling the system to operate in different modes: normal cooling mode, emergency cooling mode, and hybrid mode. The refrigerant loop handles primary cooling while the cold water loop provides supplemental cooling and energy storage, allowing a single system to adapt to various thermal loads and failure scenarios without requiring multiple separate systems.
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
Ensures uninterrupted cooling in data centers by leveraging phase change energy storage to reduce peak cooling demands on the refrigeration unit, extend its lifespan, and lower operational costs by storing and releasing cooling capacity strategically, thereby preventing equipment damage and maintaining data communication integrity.
Implementation Method 1
a phase change energy storage module, a phase change material package
Implementation Method 2
The phase change material package is located in the phase change energy storage module
Implementation Method 3
an evaporator, a condenser, an evaporator fan... the circulation of the Freon working medium is ensured
Implementation Method 4
a condenser is located in the condenser housing... the condenser and the evaporator are connected by a pipeline to form a refrigerant circulation loop
Implementation Method 5
A cooling pump is installed on the pipeline between the phase change energy storage module and the condenser casing, and the cooling pump is used to promote circulation of the cold water working medium
Implementation Method 6
between the refrigeration unit and the condenser casing, between the refrigeration unit and the phase change energy storage module, the phase change energy storage module and the condenser a cold water circulation loop is formed
Data Source
AI summary
A computer room heat-pipe air conditioning system with an emergency cooling control method. The system comprises a phase-change energy storage module, a phase-change material packaging body, a condenser housing, a condenser, a cold releasing pump, evaporators, evaporation fans, four three-way valves, a cooling unit, standby power generators and storage batteries. The three-way valves are opened and closed based on a preset heat-pipe cooling criteria in combination with phase-change energy storage technology.