Lunar Surface Gas Extraction Using Free Molecular Flow
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Solution Overview
Problem
Existing methods for extracting helium-3 and other gases from celestial bodies like the Moon are inefficient, energy-intensive, and prone to mechanical failure due to the abrasive nature of lunar regolith, with deep excavation being unnecessary for substantial gas extraction.
Innovation Solution
Mechanically disturb the lunar surface to release gases and isotopes into a free molecular flow regime, using electrostatic repulsion to separate solids from gases, and employ turbomolecular pumps and tortuous flow channels for selective capture and purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If deep excavation methods are used to extract gases from lunar regolith, then gas extraction quantity increases, but energy consumption increases and mechanical reliability decreases due to abrasive regolith
Solution Approach 1:
The patent replaces heavy mechanical excavation systems with a combination of thermal field (heating elements to vaporize gases) and electromagnetic field (radio frequency generators to heat regolith). This substitution eliminates the need for mechanical contact with abrasive regolith, solving the reliability problem while maintaining gas extraction capability through phase change and thermal desorption
Solution Approach 2:
The patent changes the physical state parameters of lunar regolith by applying thermal energy to raise temperature and induce phase changes from solid to vapor. By controlling temperature parameters and using electromagnetic radiation parameters, the system extracts gases through thermal desorption and vaporization without mechanical excavation, thereby maintaining reliability while achieving extraction quantity
2Productivity
If mechanical excavation systems are used to collect gases from lunar surface, then gas collection efficiency improves, but the system becomes vulnerable to mechanical failure from abrasive regolith
Solution Approach 1:
The patent replaces mechanical excavation and collection systems with a thermal-electromagnetic field-based system. Heating elements and RF generators create thermal fields that vaporize and mobilize gases, while electrostatic collectors and condensation surfaces capture the gases without mechanical contact. This eliminates vulnerability to abrasive regolith while maintaining collection efficiency through field-based gas mobilization and capture
Solution Approach 2:
The patent introduces thermal energy and electromagnetic fields as intermediary mediators between the lunar regolith and the collection system. These fields transfer energy to the regolith to release gases, and then transfer gases to collection surfaces without requiring mechanical intermediaries that would be subject to wear and failure from abrasive contact
3Device complexity
If conventional gas extraction methods are used, then extraction process is simplified, but contamination from solid particles increases
Solution Approach 1:
The patent exploits phase transitions (solid to vapor) of gases trapped in lunar regolith by applying thermal energy. Heating elements and RF generators raise the temperature to vaporize gases, which then rise and are collected separately from the solid regolith matrix. The phase change naturally separates gases from solid particles, reducing contamination while maintaining relatively simple extraction process through thermal treatment
Solution Approach 2:
The patent replaces mechanical separation and filtration systems with field-based separation using thermal, electromagnetic, and electrostatic fields. Gases are vaporized by thermal fields, mobilized by electromagnetic fields, and collected by electrostatic fields, eliminating the need for mechanical filters and separators that would require complex designs to handle abrasive particulate contamination
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
Achieves efficient, contamination-free extraction of gases and isotopes with reduced energy consumption, suitable for long-term lunar operations and potential applications in space-based operations or Earth.
Implementation Method 1
an agitation system configured to disturb the lunar surface, generating a plume of matter that enters a molecular flow regime
Implementation Method 2
a solids prevention mechanism may be employed, which may utilize an electrostatic charge system. In certain implementations, a positively charged mesh layer may be positioned over the collection system's inlet, repelling solid particles while allowing gases and isotopes to pass through
Implementation Method 3
A collection system may be provided to capture and direct these gases and isotopes to a secure collection area while preventing unwanted solid particles from entering the system. To enhance efficiency, the collection system may incorporate a molecular directional change apparatus, such as a turbomolecular pump, which is configured to alter the momentum vector of the collected gases and isotopes
Implementation Method 4
In embodiments, a tortuous flow channel may be utilized to separate different gases and isotopes from the collected plume based on their molecular properties
Data Source
AI summary
Aspects of the present invention relates to a lunar surface gas collection system designed to extract and collect gases and isotopes from the lunar regolith. The system may include an agitation system configured to disturb the lunar surface, generating a plume of matter that enters a molecular flow regime, thereby releasing gases and isotopes. A collection system may be provided to capture and direct these gases and isotopes to a secure collection area while preventing unwanted solid particles from entering the system.