Array Evaporator Refrigeration for Data Center Temperature Control
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Solution Overview
Problem
Indirect evaporative cooling methods in data centers suffer from poorer accuracy in temperature control, leading to inefficiencies in cooling processes.
Innovation Solution
A refrigeration device is designed with multiple evaporators arranged in an array within an air duct, connected in series to form independent refrigeration circuits. A mixer is positioned downstream to ensure uniform air temperature, and the number of evaporators participating in cooling can be adjusted to precisely control temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If indirect evaporative cooling is used to dissipate heat from data centers, then cooling capacity is improved, but temperature control accuracy deteriorates
Solution Approach 1:
The system divides the cooling function into multiple independent evaporators (first evaporator, second evaporator, third evaporator, fourth evaporator) arranged in an array, each capable of independent operation. This segmentation allows precise control of cooling output by selectively activating specific evaporators based on temperature requirements, thereby improving temperature control accuracy while maintaining overall cooling capacity.
Solution Approach 2:
The system dynamically adjusts the number of active evaporators based on real-time temperature conditions in the data center. The control system can activate or deactivate evaporators individually, creating a dynamic response to temperature variations. This dynamic adjustment capability enables precise temperature control while maintaining adequate cooling capacity under different load conditions.
2Stability of the object's composition
If multiple evaporators are arranged in an array with intersecting connecting lines, then temperature uniformity is improved, but device complexity increases
Solution Approach 1:
The evaporators are arranged in an asymmetric array pattern where the connecting lines of adjacent evaporators intersect at specific angles rather than being uniformly parallel. This asymmetric arrangement optimizes airflow distribution and heat exchange efficiency across different zones, improving temperature uniformity throughout the data center while the modular nature keeps complexity manageable.
Solution Approach 2:
A mixer is introduced as an intermediary component downstream of the evaporators. The mixer receives cooled air from multiple evaporators and thoroughly mixes it to ensure uniform temperature distribution before delivering the air to the data center. This intermediary device simplifies the overall system by centralizing the temperature equalization function rather than requiring complex coordination between individual evaporators.
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 allows for accurate adjustment of refrigeration capacity and temperature, overcoming the limitations of indirect evaporative cooling by ensuring uniform air temperature and optimizing energy consumption.
Implementation Method 1
The plurality of evaporators are separately connected in series into a plurality of refrigeration circuits independent of each other, and each of the plurality of refrigeration circuits is configured for flow of a cooling medium
Implementation Method 2
The mixer is configured to mix air from the different evaporators and blow the air having a uniform temperature to the downstream
Implementation Method 3
an air-to-air heat exchanger, which has a first pipeline and a second pipeline for mutual heat exchange
Data Source
AI summary
The present disclosure discloses a refrigeration device and a data center, where the refrigeration device includes a plurality of evaporators arranged in a first air duct forming an air circuit with an inner cavity of a computer room, and the air circuit is configured for flow of air. The plurality of evaporators are arranged at intervals in an array, and a connecting line between any two of the plurality of evaporators intersects in a direction of flow of the air in the first air duct. The plurality of evaporators are separately connected in series into a plurality of refrigeration circuits independent of each other, and each of the plurality of refrigeration circuits is configured for flow of a cooling medium.