Modular Data Center Cooling with Localized Airflow Control
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Solution Overview
Problem
Traditional data center cooling systems, such as CRAC units, are inefficient due to the mixing of hot and cold air, which reduces cooling effectiveness and increases energy consumption, and they often require complex and prone-to-leakage piping systems, making overhead piping undesirable.
Innovation Solution
A modular, scalable cooling system with variable speed fans and a bypass valve to optimize airflow and coolant flow, allowing for localized cooling of data center racks and eliminating the need for raised floors by using self-contained, modular units that can be easily reconfigured and redeployed based on changing cooling demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If CRAC units are used to cool data centers, then cooling coverage is provided, but cooling efficiency decreases due to air mixing and energy consumption increases
Solution Approach 1:
The invention divides the data center cooling into multiple zones using portable cooling units that can be positioned near specific heat-generating equipment. Each unit independently cools its local zone rather than one system cooling the entire space, eliminating the need to mix hot and cold air and significantly improving cooling efficiency while reducing energy consumption.
Solution Approach 2:
The portable cooling units provide localized cooling directly at the source of heat generation (equipment racks), creating cold zones only where needed. This local quality approach ensures that cool air is delivered precisely where required without being diluted by mixing with hot air from other areas, thereby maintaining high cooling efficiency and low energy use.
2Reliability
If overhead piping is installed for coolant delivery, then cooling system functionality is achieved, but system reliability decreases due to leakage risks
Solution Approach 1:
The invention extracts the coolant delivery function from complex overhead piping systems and implements it through simple, flexible hoses connected to portable cooling units. This eliminates the need for permanent, complex piping infrastructure while maintaining reliable coolant delivery to where it is needed, thereby improving system reliability and reducing complexity.
Solution Approach 2:
The portable cooling units are self-contained with integrated coolant circulation systems that do not require external piping infrastructure. Each unit independently manages its own coolant delivery through flexible connections, eliminating the need for complex centralized piping and associated leakage risks, thus improving reliability while simplifying the overall system.
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 enhances cooling efficiency by minimizing air mixing, reducing energy consumption, and eliminating the need for complex piping, thereby improving data center reliability and flexibility while reducing installation costs and environmental impact.
Implementation Method 1
a compressor to provide coolant under pressure
Implementation Method 2
a condenser in fluid communication with the compressor
Implementation Method 3
a condenser in fluid communication with the compressor
Implementation Method 4
an evaporator in fluid communication with the condenser and the compressor
Implementation Method 5
an evaporator in fluid communication with the condenser and the compressor
Implementation Method 6
The first air moving device comprises a variable speed fan to vary the volume of air being delivered over the condenser
Data Source
AI summary
A method of calculating sensible cooling capacity of a cooling unit includes obtaining compressor capacity, subtracting compressor heat loss from the compressor capacity, subtracting latent cooling capacity from compressor capacity, and subtracting fan power loss from the compressor capacity. Methods of controlling a cooling unit and embodiments of a cooling unit are further disclosed.