Thermodynamic Driver for Data Center Cooling
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Solution Overview
Problem
Data centers face significant costs in maintaining ambient temperatures for effective computer processor operations due to the high heat generated by high-performance computing servers, and existing cooling systems require substantial power to circulate refrigerant through small heat exchangers and may not efficiently utilize heat recovery.
Innovation Solution
A refrigeration system that uses a driver to create a mechanical force from an alternating pressure differential of gaseous coolant, powering a pump to circulate liquid coolant and a compressor to pressurize gaseous coolant, allowing for efficient heat removal from processors and conversion of heat into mechanical energy to reduce electrical power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional cooling water systems are used to remove heat from processors, then heat removal effectiveness is improved, but electrical power consumption increases due to requiring substantial power to circulate refrigerant
Solution Approach 1:
The system uses the heat extracted from processors to drive the refrigerant circulation system itself. The thermal energy from processors powers the thermodynamic cycle that circulates refrigerant through heat exchangers, making the cooling system self-powered and eliminating the need for external electrical power to drive pumps and compressors.
Solution Approach 2:
The system converts the waste heat generated by processors into useful work by using it to drive the thermodynamic cycle. Instead of discarding the heat or using it solely for cooling, the invention utilizes this thermal energy to power the refrigerant circulation, transforming a harmful waste product into a beneficial driving force.
2Temperature
If conventional cooling systems are used, then processors are effectively cooled, but cooling water consumption increases
Solution Approach 1:
The system replaces the conventional mechanical pumping system with a thermodynamic cycle driven by thermal energy from processors. Instead of using electrically-powered pumps to circulate cooling water, the invention uses heat-driven phase changes of refrigerant to achieve circulation and heat transfer.
Solution Approach 2:
The system utilizes phase transitions of refrigerant (liquid to gas and back) to transfer heat from processors. The refrigerant absorbs heat during evaporation and releases heat during condensation, providing effective cooling without requiring large volumes of cooling water.
3Productivity
If high-power compressors and pumps are used to circulate refrigerant, then refrigerant circulation efficiency is improved, but device complexity increases
Solution Approach 1:
The system merges the functions of the compressor and pump into a single integrated thermodynamic cycle. The refrigerant circulation system is combined with the heat recovery system, where the same thermal energy that cools processors also drives the refrigerant circulation, eliminating the need for separate high-power mechanical drivers.
Solution Approach 2:
The refrigerant acts as an intermediary substance that transfers thermal energy from processors to the heat recovery system. Instead of directly using mechanical power to circulate coolant, the system uses refrigerant phase changes as an intermediary mechanism to achieve both cooling and power generation.
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
The system effectively reduces electrical power requirements for refrigerant circulation, operates with low global warming potential coolants, and minimizes the need for cooling water, providing efficient and environmentally friendly cooling for data center processors.
Implementation Method 1
a driver uses the gaseous coolant to create a mechanical force used to power the pump circulating the coolant
Implementation Method 2
This compressor pressurizes gaseous coolant in the other thermodynamic cycle
Implementation Method 3
The gaseous refrigerant is condensed and circulated to an evaporator to remove heat from another fluid stream
Implementation Method 4
The gaseous refrigerant is condensed and circulated to an evaporator to remove heat from another fluid stream
Implementation Method 5
cooling systems described herein may use a coolant flowing through one or more heat exchangers to remove heat from the hot air stream
Data Source
AI summary
An apparatus includes a driver and both a pump and a compressor mechanically coupled to the driver. The driver includes a first driver chamber and a second driver chamber separated by a moveable driver barrier coupled to a mechanical link. The driver is configured to alternately expand and contract the first and second driver chambers in response to an alternating pressure differential of a gaseous first coolant between a first pressure and a second pressure of the first and second driver chambers and produce a mechanical force from the alternating pressure differential. The pump is configured to pump a liquid first coolant in response to the mechanical force from the driver. The compressor is configured to compress a second coolant in response to the mechanical force from the driver.