Embedded Files
DAQ Selection
DAQ Selection
The Data Acquisition component is the brain of the test stand. It allows for data collection and can help turn numbers into useful insights. The requirements for this component was to achieve a sampling rate of at least 1 second and cost less than $100. The Arduino Uno was selected because it meets these requirements and is user-friendly.
Fuel Storage
Fuel Storage
The Fuel Storage is crucial to the effectiveness of the oxy-acetylene ablation test stand. There must be enough fuel and oxygen in order to complete a specified burn duration. The team also needed the storage to be low-budget. The machine shop k-bottles were the winners for this round.
Control Flame
Control Flame
The Control Flame component has the following requirements. Concentrate heat, modify flow rates, and safety. The 2-stage pressure regulator has a 2-point failure as there are two stages. This means if one valve blows out, the other is there to take the pressure differential. Additionally, the 2-stage pressure regulator allows for finer control of gases and is easily modifiable.
Specimen Holder
Specimen Holder
The Specimen Holder is mostly governed by the ASTM E285 standard. However, there are some constraints that the team needed for this component. Being that samples will be burned, the stand must provide a means for quick specimen removal. Additionally, the holder must leave a 4" x 4" front-face footprint for the torch flame to contact the specimen and it must withstand high temperatures.
Frame
Frame
The Frame is another important component for this project. It must house all instruments, withstand high temperatures, and allow for the specimen to contact the flame in less than 1/2 a second. It is easier to keep the torch fixed because of the big hoses that attach to the end of it, therefore the specimen holder will be adjustable in order to meet this criteria.
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