Natural gas letdown generator system and method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Natural gas regulation stations experience significant energy losses and greenhouse gas emissions during the depressurization process, as the energy released is not harnessed and typically requires additional heating to preheat or postheat the gas for distribution, leading to inefficiencies and emissions.
Innovation Solution
Implementing a natural gas letdown generator system that harnesses energy during depressurization to generate electricity, which powers an immersion data center and transfers heat to the natural gas stream, reducing the need for traditional heating methods and minimizing emissions through heat exchangers and an in-line electric heater.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional gas-fired heaters are used to preheat or postheat natural gas at regulation stations, then the natural gas temperature is maintained for distribution, but significant energy losses and greenhouse gas emissions occur
Solution Approach 1:
The patent converts the harmful waste heat from the letdown generator into a beneficial resource by using it to preheat or postheat the natural gas through heat exchangers. This eliminates the need for separate gas-fired heaters, thereby reducing energy losses and greenhouse gas emissions while maintaining the required natural gas temperature for distribution
Solution Approach 2:
The patent merges the letdown generator with the heating system by integrating the heat exchangers that transfer waste heat from the generator to the natural gas stream. This combination eliminates the need for separate heating equipment and optimizes energy utilization within the regulation station
2Temperature
If traditional gas-fired heaters are used to maintain natural gas temperature, then heating is provided, but greenhouse gas emissions increase
Solution Approach 1:
The patent converts the harmful waste heat that would otherwise be lost into a useful heating source, eliminating the need for combustion-based heaters and thereby reducing greenhouse gas emissions while maintaining natural gas temperature
Solution Approach 2:
The system uses its own waste heat from the letdown generator to heat the natural gas, making the system self-sufficient and eliminating the need for external fuel sources that would generate emissions
3Loss of energy
If energy is harnessed during the depressurization process using a letdown generator, then electricity is generated to power the data center and heat the gas, but the system complexity increases
Solution Approach 1:
The letdown generator serves multiple functions: it generates electricity to power the immersion data center and simultaneously produces waste heat that is used to preheat or postheat the natural gas through heat exchangers. This multi-functionality reduces overall system complexity by consolidating power generation and heating functions into a single integrated 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
The system reduces energy losses and emissions by utilizing the generated electricity to power the data center and heat the natural gas, eliminating the need for gas-fired heaters and enhancing the efficiency of natural gas regulation stations.
Implementation Method 1
a letdown generator configured to reduce the pressure of the natural gas and generate electricity
Implementation Method 2
a first heat exchanger in fluid connection with the inlet of the letdown generator, the first heat exchanger configured to transfer heat to the natural gas
Implementation Method 3
an electric heater configured to provide heat to the natural gas via the first heat exchanger
Data Source
AI summary
Provided herein are systems and methods for utilizing a natural gas letdown generator at a natural gas regulating station. The system utilizes the gas letdown generator to generate electricity by converting high pressure inlet gas to low pressure outlet gas, which in turn creates low temperature outlet gas. Electricity generated can power a data center. Heat may be transferred, using a heat exchanger, from dielectric fluid of the data center to the natural gas prior to entering the gas letdown generator. Heat may be further transferred, using a second heat exchanger, from the dielectric fluid to the natural gas at the output of the gas letdown generator. The heat exchange may substantially cool the dielectric fluid for transmission to the data center and may heat the low temperature outlet gas for transmission to an end user.