Bulkhead Triethylaluminum Container for Rocket Propellant Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The mixing of liquid methane and liquid oxygen in rocket propulsion systems poses a significant risk of explosions, which can lead to catastrophic consequences, including loss of life and damage, due to the high explosive potential of the propellant combination.
Innovation Solution
Incorporating a container filled with triethylaluminum between the liquid oxygen and liquid methane tanks, which ignites upon oxygen leakage, causing a fire instead of an explosion and preventing the mixing of the two propellants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If liquid methane and liquid oxygen are stored in the same rocket system, then propulsion performance is improved, but explosion risk increases
Solution Approach 1:
A bulkhead is introduced as an intermediary barrier between the liquid oxygen tank and liquid methane tank. This bulkhead physically separates the two propellants during storage and transport, preventing direct contact and potential explosion, while allowing the system to maintain both propellants for high-performance propulsion when needed
Solution Approach 2:
The propellant storage system is segmented into separate compartments (liquid oxygen tank and liquid methane tank) divided by a bulkhead. This segmentation allows each propellant to be stored independently in its own compartment, eliminating the immediate explosion hazard of mixing while preserving the ability to combine them for propulsion
2Reliability
If a bulkhead is added to separate propellant tanks, then safety is improved, but device complexity increases
Solution Approach 1:
Instead of completely separate tank systems, the bulkhead is introduced only at the critical interface between propellant compartments where separation is needed. This localized approach provides safety where required while minimizing the overall structural complexity of the tank 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 effectively reduces the risk of explosions by converting a potential explosion into a controlled fire, thereby minimizing the risk of damage and loss of life while being relatively inexpensive to implement in existing liquid methane and liquid oxygen rockets.
Implementation Method 1
The triethylaluminum reacts with the liquid oxygen if the liquid oxygen leaks from the oxygen tank. In particular, the reaction occurs when the liquid oxygen leaks through the bulkhead.
Implementation Method 2
The triethylaluminum is ignited in the container so as to cause a fire to occur prior to the liquefied oxygen reacting with the natural liquefied natural gas in the fuel container.
Data Source
AI summary
A method and apparatus for reducing consequences of a bulkhead failure for a liquid methane and liquefied oxygen rocket in which the rocket has a body, an oxygen tank positioned in the body, a fuel tank positioned in the body, at least one rocket engine positioned adjacent an end of the body, a bulkhead formed in the body between the oxygen tank and the fuel tank, and a container having triethylaluminum therein. The rocket engine is adapted to mix oxygen from the oxygen tank with fuel from the fuel tank. The container of triethylaluminum is positioned between the bulkhead and the fuel tank. The fuel tank will contain liquefied natural gas therein. The oxygen tank contains liquid oxygen.