Compressed-Air Backup Power and Cooling for Data Centers
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Solution Overview
Problem
Renewable energy sources, such as wind and solar, produce intermittent power, making it unreliable for critical applications like data centers that require continuous operation and cooling, as traditional storage methods like batteries are impractical and fossil fuel generators are environmentally harmful, and grid power is not always viable.
Innovation Solution
A system that uses an electrical-to-mechanical energy conversion device to compress air, storing it in a high-pressure container, which can then be converted back to electricity using a mechanical-to-electrical energy conversion device during power outages, providing both power and cooling to data centers through a mechanical battery and heater system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If renewable energy sources are used to power critical applications, then environmental impact is reduced and sustainability is improved, but power reliability and continuity deteriorate due to intermittent production
Solution Approach 1:
The system performs preliminary action by compressing and storing air during periods when renewable energy is available and excess power is generated. This stored compressed air is then expanded during periods when renewable energy is unavailable, ensuring continuous power supply to critical applications without relying on fossil fuels or grid power.
Solution Approach 2:
The patent introduces compressed air as an intermediary energy storage medium between renewable energy sources and critical applications. The air compressor stores excess renewable energy as compressed air, and the air expansion engine converts this stored energy back to electricity when needed, mediating the intermittent nature of renewable sources to provide reliable continuous power.
2Duration of action of moving object
If traditional energy storage methods like batteries are used, then power continuity is improved, but device complexity and cost increase
Solution Approach 1:
The system replaces complex electrochemical battery systems with a pneumatic energy storage approach using compressed air. The air compressor and air expansion engine provide power continuity through mechanical pneumatic processes, simplifying the overall system architecture while maintaining the ability to store and release energy on demand.
Solution Approach 2:
The patent changes the physical state and parameters of air (pressure, temperature, volume) to store and release energy. By compressing air to high pressure and then expanding it through an engine, the system achieves energy storage and retrieval without the chemical complexity of batteries, using only physical parameter transformations.
3Reliability
If fossil fuel generators are used as backup power, then power reliability is improved, but environmental harm and operational cost increase
Solution Approach 1:
The system converts the intermittent nature of renewable energy, which is normally a disadvantage, into a benefit by using excess renewable power to compress and store air. This stored air then serves as a clean backup power source, eliminating the need for fossil fuel generators and their associated environmental harms while maintaining power reliability.
Solution Approach 2:
The renewable energy system serves itself by using its own excess output to compress air for future use. This self-service mechanism eliminates the need for external fossil fuel-based backup systems, allowing the renewable energy installation to provide its own reliability assurance without environmental harm.
4Quantity of substance
If air is compressed to high pressure for energy storage, then energy density is improved, but energy loss during compression and expansion increases
Solution Approach 1:
The system utilizes phase transitions and thermodynamic cycles in the air compression and expansion processes. By carefully managing the thermodynamic states of air during compression and expansion, the system maximizes energy density while minimizing losses through efficient heat management and thermodynamic cycle optimization.
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 enables data centers to be self-sufficient in power and cooling, reducing reliance on fossil fuels and grid power, ensuring continuous operation while efficiently utilizing renewable energy and minimizing environmental impact.
Implementation Method 1
an electrical-to-mechanical energy conversion device configured to convert air at approximately atmospheric pressure to a compressed or liquified state using at least the portion of the first electrical energy received from the power source during the first time period
Implementation Method 2
a mechanical-to-electrical energy conversion device configured to, during a second time period in which the metering device does not provide the first electrical energy to the data center: receive the air from the storage container in a gaseous, compressed state; generate second electrical energy for powering the data center using the air received from the storage container
Implementation Method 3
exhaust cooled air for providing to the data center to cool the electronic devices
Data Source
AI summary
A system includes a metering device to receive first electrical energy from a power source and provide at least a portion of the first electrical energy to a data center during a first time period. The system also includes an electrical-to-mechanical energy conversion device to convert air to a compressed or liquified state using at least the portion of the first electrical energy. The system also includes a storage container to receive the air and store the air in the compressed or liquified state. The system also includes a mechanical-to-electrical energy conversion device to: receive the air from the storage container in a gaseous, compressed state; generate second electrical energy for powering the data center; and exhaust cooled air for providing to the data center to cool the electronic devices.